Lightning Protection for TV Antennas

August 25th, 2008

If you use an exterior mounted television or radio antenna you should take steps to protect your TV and home from being damaged by lightning.

I do not claim to be an expert in this field, however I have gone to the trouble to find articles on the Internet by several people who are, and I have taken their advise with very good results. At the bottom of this page you will find links to several “expert” sites on this subject.

Protection for a TV antenna which is located on a roof should be at three points:

1) Ground Connections at the Antenna The antenna, mast and lead in wires (as well as control wires for the rotator or similar equipment) should have a ground routed via the shortest possible path, without sharp bends or kinks to a ground rod which is connected to the main earth ground for the home electrical system.

2) At The Entrance to the House The antenna coax should enter the house as near as possible to where the telephone or cable TV wires enter (usually very near the electrical service entrance). This is called a single point of entry. All data and control wires should be grounded at this point with the shortest most direct conductor possible to the system ground rods.

3) At The Television A high quality surge protection device that protects both the power supply and the antenna wires should be used at all televisions connected to the antenna.

TV and Radio Tower Grounding

The antenna and mast should be properly connected (bonded) to at least one 8-foot ground rod that is located as close as possible (preferably within inches) to the mast. If the mast does not go to the ground (as in a roof-mounted antenna) then the ground wire should run as directly as possible straight down to the ground rod. The coax wire should also run directly down from the antenna to the vicinity of the ground rod where the coax shield is connected (by way of a ground block or other method) to the main ground wire.

It is very important that the coax (or control wires) run straight down as close as possible to the earth and the shield ground connection before being routed into the house. You must do this even if this means that you will have to run the wire a long way back up to a second or third floor room where the TV is located. It is also advisable to ground the coax shield near the top of the antenna mast, but it is critical to do so at the base.

You might be able to get away with using the mast as the grounding conductor especially if it is a single piece of metal. However, if you are using some kind of “extend-a-mast” then you should probably bond the pieces together by running a #4 ground wire from the top of the mast all the way to the ground rod. What you are trying to accomplish is to supply the lightning with a very good path directly to ground that does not lead through your wiring. In either case the connection between the antenna mast and the ground rod needs to be robust and long lasting.

At the House

After your coax and control wires (if any) are grounded at the base of the antenna, they should be routed into the house at the same place that the telephone wires enter. At this location on the outside of the house the coax shield should be grounded again in the same manner as at the base of the antenna mast or connected to a lightning arrestor. However, the entrance point ground should be connected as directly as possible to the ground wire leading to the main ground rod(s) for the electrical service. If you look you will probably see that the telephone and cable lines are connected to the system ground as described using a ground block, and a split bolt ground clamp at the system ground wire. You might even be able to utilize existing hardware to make your connections. This is also where you would put a rotator/control line protection device to protect the coax wire or rotator control wires.

At The Television

At the TV You should use a high quality surge protector which is designed to protect not only the power supply but also the coax wire. The surge protector must be plugged into a grounded outlet or connected to the main system ground by way of a grounding adapter for it to function. Note: Don’t plug your surge protector into a GFCI protected outlet that is on an ungrounded two wire system or it will not work! Quality surge protectors are rated in joules (higher numbers are better) and will have a warranty covering connected equipment.

Tips:

Use electrically conductive grease (such as ideal brand noalox or equivalent) at all bonding connections, especially if there will be aluminum or any dissimilar metals being connected.

Keep your ground wires as short and direct as possible. The bigger they are the better they will perform, but keeping them short is even more of a factor.

Use ground rods that are suitable to your local soil conditions. If you have highly conductive soil then one 8′ ground rod will probably be enough, but if you have dry sandy soil you might need more than one. Whatever local codes require for home electrical system grounds should be fine. Ask at your local electrical contractor supply store where you buy your ground rod.

Always connect the antenna ground rod to the main system ground using at least a #6 copper wire. Relying on the earth to connect them will not work. You want a single point ground even if you have multiple ground rods. Failure to do this will usually result in a ground loop which will plague you with noise, snow, hum, and all manner of puzzling electrical problems.

Use ground rods, don’t try to ground your system to a water or gas line.

Don’t run your ground wires into or through the house, basement or crawl space. Keep all of the ground elements, wires, rods, bulkheads and other connections outside.

Drive your ground rod as close as possible to the base of the antenna mast, but you want it to be in soil that will be wet as often as possible so don’t place it where it will be too protected by the overhang of the house.

I installed a TV antenna on my own house about a year ago using these techniques and so far we haven’t had any problems whatsoever despite the fact that we live on the very top of the highest hill around. We live in middle Tennessee and lightning storms are a regular fact of life here, but I have complete confidence in this system after living with it for a year.

Custom Google Search of selected Antenna and Lightning related web Resources

Links to resources about this subject

  • Various articles about antennas and telecom hardware
  • Modern Lightning Protection For Radio Facilities: RF Entry Ports
  • Modern Lightning Protection For Radio Facilities: AC Power Lines Modern Lightning Protection For Radio Facilities: Control Lines
  • Modern Do-It-Yourself Grounding Techniques
  • Bulkhead Grounding For Telecommunication Facilities
  • Earth Grounding Construction Materials
  • Grounding Coaxial Cable Shields: Why, Where, and How
  • Explanation of how a lightning protection system works from a dealer of lightning rods and parts
  • Basics of Transient and Surge Protection for Coaxial Lines
  • NEC internet connection
  • problem-solvers-for-wire-ant
  • Antenna system articles
  • links to antenna articles
  • antenna web station finder
  • Yagi antenna design
  • How to Choose Energy Efficient Windows

    August 20th, 2008
    A typical NFRC window label gives you the information that you need about window performance.

    A typical NFRC window label gives you the information that you need about window performance.

    Picture of a typical NFRC window label - Snagged from the NFRC website.

    Almost everything you need to know about windows can be found on the NFRC label that comes on the window, and your window dealer should be able to furnish you with this information before you place your window order.

    What you will find on the NFRC label

    U-Factor

    This is the energy efficiency rating of the entire window unit including the glass, jambs, and frames. U-Factor correlates directly to R-Ratings for insulation that we are all familiar with. If you divide the number one by the U-Factor you will get the R-Rating equivalent for the window. For example a U-Factor of .25 would be equivalent to an R-4 insulation rating. Notice that a lower U-Factor is better while a Higher R-Factor is better. This along with the air leakage rating is the main indicator of energy efficiency for the window, and is more important than particular construction features such as Low-E and Argon filled glass. Those factors help to determine the overall U-Rating, but other features not withstanding, for energy efficiency you want windows with a numerically low U-Rating above all else. Notice that even a very well rated window has a fraction of the insulation value of a standard exterior wall which will be from R-13 to over R-20.

    Solar Heat Gain Coefficient

    This rating (between 0 and 1) tells you how much heat from the sun is transmitted through the window. What you would like to see here depends upon the circumstances. The lower the number is the less heat will pass through the window - which is usually good. However there may be applications where you want solar heat gain in which case it would be a trade off between insulation value and solar gain. Here in the sunny south you probably want this number to be as low as possible to avoid heat gain during the Air Conditioning season.

    Visible Transmittance

    VT is another number between 0 and 1 that indicates the amount of visible light that passes through the glass. The higher the number the more light the glass lets through. In this case more is better.

    Air Leakage

    AL is an optional rating that some manufacturers use and some don’t. The higher the number the more air the window will leak. The value is supposed to represent cubic feet of air at a standard pressure differential. Obviously less air leakage is better.

    Condensation Resistance

    CR values run between 0 and 100 with a higher value indicating higher resistance to condensation. This is also an optional rating.

    Armed with this information you should be able to cut through the sales rhetoric and make an informed decision when buying windows.

    Energy Efficient Thermal Envelope - How to build an affordable energy efficient home

    Home Improvement Projects to Save Energy and Lower Your Energy Bills

    August 14th, 2008

    The right home improvements can save you money beginning almost immediately and increase the resale value of your home, while also making your home a more comfortable place to live. In the future many home buyers are going to be much more concerned with energy efficiency and total cost of ownership.

    Tighten you HVAC Duct Work - Leaky ducts that run through unconditioned attics or crawl spaces can waste huge amounts of energy.

    Upgrade to an On demand Water heater - Replacing your standard water heater with a high efficiency on demand water heater could save you as much as 40% on your water heating bill. However, if you use lots of hot water, and you use it all day and all night long (got teenagers?), then your savings will be less than if you use hot water less frequently. The reason for this is that an on demand heater saves energy mostly because it doesn’t keep a big tank full of water hot 24 hours a day whether you need it or not. On the other hand, if you do have constant demand for lots of hot water, an on demand heater has the added advantage that it never runs out of hot water. The word on the street seems to be that most households will experience long term savings by using an on demand water heater, but I have not been able to verify this by way of a reliable scientific source yet.

    Upgrade to a Programmable Thermostat - According to several reliable sources this may be the one home improvement that gives the most bang for the buck. Programmable thermostats are readily available in the $100 price range at home improvement stores, and are not difficult for a do it yourselfer to install. It basically boils down to this; heating and cooling your house is your largest energy expense and if you turn your heating and cooling down or off even for a few hours a day, you will save money. And, a programmable thermostat will take care of it for you like clockwork. You might have heard that this won’t really work, because the system has to work extra hard when the HVAC Kicks back on, but don’t believe it, research has proven that this home improvement really works.

    Install a Water Heater Timer - Heating water is the second largest energy hog in your home so installing a water heater timer and setting it to turn the heater off during times of low demand such as over night and during the work day, will pay off almost immediately. Water heater timers are pretty simple to install and cost from $30-$100. FYI, digital water heater timers are available that allow you to have a different schedule for weekends than during the work week. Just Google for “digital water heater timer.” Of course always remember to turn off the electricity before working on any wiring, and if you have any doubts whatsoever about your ability to safely do something like this, then hire an electrician.

    A common misconception is that a water heater works harder than normal to recover after the thermostat has been set back, resulting in little or no savings. This misconception has been dispelled by years of research and numerous studies. It is always best to put your water heater on a timer, as the energy lost from a hot water tank depends on the temperature difference between the surface of the tank and its surroundings. It’s a common myth that it somehow takes more energy to keep heating up a tank than it does to maintain it at a normal temperature.

    Of course, as with all myths, there are a few “ifs” and “buts”. If the tank is highly insulated (so standing losses are very low) and there is an effective thermostat on the tank, then the losses caused by leaving it on all the time can be much reduced. And some people have a need for large quantities of hot water all day long, in which case they may have no alternative except to leave the heater on all the time. But in general, it is much better to install a timer. A water heater timer, can cost less than $40 and if you can install it yourself safely, could pay for itself in a few months and is an excellent investment. If you have to hire an electrician, then of course it will take longer to recoup your investment, but it can still be worthwhile. FYI, many home improvement stores will hook you up with professional installers for a fixed price. When considering the economics of energy efficient home improvements always keep in mind that the cost of energy will almost certainly continue to increase.

    Add a Water Heater Blanket to your Existing Water Heater - Adding Insulation to your water heater if taken to an extreme, might be almost as effective as replacing your water heater with an on demand unit, or installing a water heater timer. However, you would be talking about an awful lot of insulation (like 12 inches or so) including the top and bottom. Just adding a moderate amount of additional insulation probably makes more sense for most people. You can get a water heater “blanket” for less than $20 at home centers and hardware stores, which is made just for this purpose, or you can simply wrap up your water heater with fiberglass insulation and plastic film. Obviously this would be a lot easier if the tank wasn’t already installed, but it’s not too difficult anyway. A nice extra touch would be to put a piece of 1/2″ EPS (Expanded PolyStyrene also known as “Styrofoam” which is a registered trademark of Dow Corning) under the water heater, although I don’t know how much it would really help. Of course, turn off the electricity or gas before you start and don’t get any insulation too close to burners, or vents.

    Install Low Flow Shower Heads to Save Hot Water - Low flow shower heads are inexpensive, very easy to install, and simply reduce the amount of hot water that you use.

    Upgrade to Low flow Aerators in all Faucets to Save Hot Water - Many faucets already come with low flow aerators, however retrofitting them is as simple as unscrewing the existing aerator and screwing in the new one.

    Add Trickler Valves to your Showers to Save Hot Water - A trickler valve allows you to turn off or reduce the flow of water in the shower while you are lathering up or shaving or whatever without having to readjust the temperature when you turn the water back on. Some shower heads include a trickler valve.

    Get a new High efficiency Heating and cooling system - If your HVAC is worn out or obsolete, then a new high efficiency professionally installed system is one of the ultimate home improvements for energy savings. Shop around and educate yourself about the different types of systems and how they are rated for efficiency. Go to the effort to find a quality installer too. The best system there is will be lackluster if improperly installed. Keep in mind that you usually get what you pay for as far as quality equipment and workmanship.

    Install More insulation - Any time you get the opportunity to add insulation to your home you should do so, at least until you have achieved the high end of the industry standard for your area. If you have any under insulated areas of your home which are still accessible, such as unfinished attics or crawl spaces, you should have them upgraded at least to a level which is appropriate for your area. If you are going to replace or install new siding on your home, you can usually have a layer of insulation installed under the siding for a very reasonable cost. If your exterior walls don’t already contain insulation, then it can be blown in to the cavities, and the holes can easily be patched and covered with the new siding. Otherwise, adding insulation to already enclosed areas (like exterior walls) can be cost prohibitive, but it can be done. Holes can also be cut in drywall from the inside of a house, and patched after insulation is blown in, however the drywall repairs will probably cost more than the insulation work unless you do it yourself. However, this kind of drywall repair is something that actually can be done by a determined do it yourselfer.

    Install a Radiant barrier in your Attic - A radiant barrier is basically a reflective layer (more or less like aluminum foil) which augments your attic insulation. It can be installed either directly on the bottom side of the roof decking, on the bottom side of the rafters with an airspace between the roof deck and the radiant barrier(the best way), or directly on top of the attic insulation (the worst way, because it will quickly get dusty and loose it’s effectiveness). A radiant barrier is mostly useful for reducing the cooling load on your air conditioner, therefore should probably mostly be considered only if you live in the sunbelt. According to where you live, and the kind of attic that you have, this could be a very cost effective do it yourself project. Lots of technical information on this subject can be found at DOE radiant barrier fact sheet and Florida Solar Energy Center - radiant barrier fact sheet.

    Tighten Your Thermal Envelope - The “Thermal Envelope” is the exterior walls, attics, and foundations of your home which contain (or should contain) insulation, and which keeps the heat inside in the winter, and outside in the summer. Air Infiltration can account for a huge percentage of your heating and cooling bill, and tightening up the thermal envelope of your home is one of the most economical and economically rewarding tasks that you can do yourself. Arm yourself with a caulk gun and plug up every hole, crack, or gap you
    can find inside and out. Then remove plug and switch covers and install foam gaskets on all of them, while you have them off, also caulk between the drywall, and the box that the wiring device is in, and also any holes in the box and around where the wires enter the device box. Put one of the plastic safety plugs that you find in the Baby Proofing section of the home improvement store into every receptacle that doesn’t have something plugged into it. You can also take down lights (without disconnecting the wiring) and seal around the wiring device box that they are mounted on, and the holes in the boxes where the wires come in. Always turn off the electricity before working around wiring. Give this same treatment to all lights or plugs that are on the outside of your house. If you are competent to work around electrical equipment take off the cover of your electrical panel (if it is inside of the heated space of your house) and seal the gap between the panel and the drywall. But be aware that you can not normally de-energize the entire inside of the electrical panel, so leave the cover on it unless you are sure that you know what you are doing. According to the Canadian Government “Simple Caulk and Seal” can save as much as 30% on your heat bill.

    New windows - If your house has old worn out windows, or windows of an obsolete design, then new or replacement windows may be called for. By the way, there is quite a difference between new (New Construction that is) and replacement windows. New construction windows require the replacement of all parts of the old window, including all interior and exterior trim. The advantage to using new construction windows (if it is possible,because it isn’t always) is that you can do a better job of installing and sealing the window to the house. Replacement Windows usually don’t require replacing interior or exterior trim, because the existing trim remains in place and the replacement window occupies the space vacated by the sashes. Some kind of trim work is usually required on the exterior, but it is pretty minor compared to using new construction windows. Installing replacement windows is much quicker and easier than installing new construction windows, and is probably more suited to the needs of a do it yourselfer. In either case, even if you decide to install new windows yourself, I would reccomend that you have the window dealer measure for them, because a small error in measurement can be a big mistake. Also, remember that you will usually get what you pay for, and look for windows that are energy star compliant.

    Storm windows - Storm windows might be an economical way to improve the energy efficiency of your existing windows. They are relatively inexpensive, and easy to install. However, storm windows installed over old leaky windows will never be as good as high quality replacement windows, cleaning your windows will be much more of a hassle than with replacement windows, and storm windows will not have much positive impact on the resale value of your home (if any). Nonetheless, if storm windows are all that you can afford, they might make a difference in the heating and cooling costs for your home by reducing air infiltration. However, according to the Florida solar energy research center, storm windows are probably not cost effective in the semi tropical Florida climate.

    Repair leaky doors - If your exterior doors are in good shape, but they leak air around the door panel, then repairing the weather strips and threshold can give you results as good as replacing the entire door and jamb system, but for a lot less cash outlay. Once you have caulked and painted it, your door will be as good as new. To make the job easier, take some samples of the old weatherstrip with you to the home improvement store, and match it as closely as possible. Usually you can get material that is a perfect replacement, but even if you can’t, the store will have products that are “universal fit” which will still yield excellent results if you do a good job of installing them. One word of caution though, in most cases adhesive alone will not attach the new weatherstrip well enough to give a trouble free installation, so consider “peel and stick” to be more of an assembly aid than anything.

    Install storm doors - Unlike storm windows, installing a high quality storm door over an existing door can give you a better result than a brand new replacement door by itself can. Top quality storm doors are not cheap, but you get what you pay for in both quality, and looks. A top quality storm door also looks good. A cheap one just looks cheap. However, even a cheap storm door will drastically improve the thermal performance of an exterior door if it is well installed.

    Ceiling fans - Ceiling fans can save you energy in two ways. In the summer, they can make you feel cooler and allow you to set your thermostat at a higher temperature thus saving money on air conditioning. In the winter, they can help to prevent heat cavitation near the ceiling, and actually make the air near the floor warmer than it would be, especially if you have higher ceilings. As a general rule they should probably be turned off when the room isn’t occupied. Consider looking for energy star compliant fans.

    Dehumidifiers - In some circumstances a dehumidifier can save you money. If your house is humid then you will have to air condition to a lower temperature in order to feel comfortable. This often is the case if your AC is sized too big, because it will “short cycle” and not run long enough to properly dehumidify your home. Try to put your dehumidifier as close as possible to the main air return grill so that dehumidified air is pulled directly into the system and distributed throughout your home. Then you can set your AC thermostat to a higher temp. Many dehumidifiers are quite noisy, so try to get one that is as quiet as possible, and look for the energy star logo.

    Replace obsolete appliances - Nothing lasts forever, and technology generally improves over time. Try to anticipate the need to replace an aging appliance, and shop around so that you can become informed. The alternative is to have to buy a new refrigerator before everything in the old (broken) one spoils. Unless you work best under pressure, you probably won’t make the best choice in that situation. Pay attention to the energy ratings, and look for energy star compliant appliances.

    Repair appliances that aren’t ready for replacement - Many appliances can be renovated to considerably extend their useful life span. The seals on refrigerators and freezers should be tight enough to clamp down on a strip of paper at all points. If your clothes seem to be taking longer to dry, your electric clothes dryer may just need a new heating element, or the exhaust duct may be clogged or crushed. Oven door seals can often be easily replaced. Some repairs can be easily done by the homeowner.

    Compact florescent bulbs - You should make a vow to never buy another incandescent light bulb. They now make high quality compact florescent bulbs that are suitable for almost any fixture, and even though they are a lot more expensive up front, they can pay back in only one year, and they can last for up to 7 years. Look for energy star compliant bulbs. The really cheap ones from the discount club stores often have thermal ballasts and don’t last all that long.

    Energy efficient landscaping - Careful placement of the right trees, shrubs and vines can contribute to the energy efficiency of your home. Deciduous trees (those that drop their leaves in the fall) can shade your house in the summer, and allow the sun to shine on it in the winter, thus helping year round. Evergreen trees which are planted to block the prevailing wind can improve the microclimate around your home in the winter. Vines growing on a trellis can accomplish the same things in a shorter period of time. Never plant any tree or shrub close enough to the house to crowd the foundation or hang over the roof though. Either condition will often foster rot and insect damage. The same goes for vines actually climbing on the house. Don’t allow it. Obviously large trees and evergreen windbreaks are long term investments that require careful planning and consideration, and poor choices of species or locations can actually do more harm than good. Also, don’t fail to consider the maintenance requirements of plants. Some require very little maintenance, and some require quite a lot. Look into it before you plant.

    Get an Energy Audit - A proffesional energy audit will let you know how you are doing, and will highlight what you still need to do, and there is no substitute for it. In a complete audit they will install a blower door, which is just a door with a fan built into it. The blower door will make the house leak anywhere that it can. Then they will use an infrared camera to find where all of the leaks are. A complete audit will also include a similar test of your HVAC ducts to find if you are leaking conditioned air into the attic or crawl space through leaky ducts. Call your electric utility provider, and ask them how you can get an energy audit. Some utilities offer energy audits free to their customers. Ask about it.

    Free Electric Load Calculator

    August 7th, 2008

    Free NEC Standard Method Single Family Residential - Electric Service Entrance Load Calculator


    What is this?

    Enter plain numbers in cells without text or labels. If you leave any cells empty they will be calculated as zero.

    Total Square feet of dwelling

    Total # of Small Appliance Branch circuits (must be at least 2). If you have gas appliances which require a 120v branch circuit include them here.

    Total # of Laundry Branch circuits (must be at least 1)

    Fastened in place Electrical appliances - Do not include gas appliances in this section. Use nameplate rating in volt-amps or watts - If appliance is rated in amps then volt-amps = amps * volts. Voltage value is either 120 or 240. So, for a 120 volt appliance which is rated at 15 amps, 120 volts * 15 amps = 1800 volt-amps.

    Total # of water heaters

    Volt-amp rating of water heater

    Total # of trash compactors

    Volt-amp rating of trash compactor

    Total # of dishwashers

    Volt-amp rating of dishwasher

    Total # of disposals

    Volt-amp rating of disposal

    Total # of microwave ovens

    Volt-amp rating of microwave oven

    Total # of range hoods

    Volt-amp rating of range hood

    Other fastened in place appliances - use this section to define things like spas which aren’t specified above.

    Total # of other fastened in place appliance #1

    Volt-amp rating of other fastened in place appliance #1

    Total # of other fastened in place appliance #2

    Volt-amp rating of other fastened in place appliance #2

    Total # of other fastened in place appliance #3

    Volt-amp rating of other fastened in place appliance #3

    Total # of clothes dryers

    Volt-amp rating of clothes dryer (must be at least 5000)

    Total # of Ranges

    Volt-amp rating of Range

    Total # of Ovens - Note: If there is a range, and no additional oven then don’t put anything here.

    Volt-amp rating of Oven

    Total # of Cooktops - Note: If there is a range, and no additional cooktop then don’t put anything here.

    Volt-amp rating of Cooktop

    Total # of Other cooking appliance over 1750 volt-amps

    Volt-amp rating of Other cooking appliance over 1750 volt-amps

    Volt-amp rating of Larger of Heating OR Air conditioning system - always include air handler. For heat pump include compressor and the maximum amt of electrical heat that can be energized while compressor is running.

    Volt-amp rating of Largest Single Motor (usally the HVAC compressor or air handler motor)

    Service voltage is assumed to be 240


    Back to the beginning of the Calculator

    What is this Load Calculator for? Electricity is delivered to your home by the Service Entrance which is sized based upon calculations dictated by the NEC and the local codes authoritys along with the electric utility provider. Most jurisdictions use the NEC standard method calculations without significant modification. There is nothing about the calculations which are difficult to do by hand with only a pencil and calculator, but each calculation has quite a few steps, and can take a while to do - especially if you aren’t familiar with it.

    This automated calculator makes it much quicker and easier to try different scenarios which can be quite useful if you’re planning a remodelling or addition project. Sometimes using more energy efficient fixtures appliances, and HVAC equipment along with upgraded insulation and weather proofing can help you to avoid retrofitting a new larger service entrance and significant expense.

    Back to the beginning of the Calculator

    Building a Tight Thermal Envelope

    August 6th, 2008
    Simple things like caulking around pipes will make your home more comfortable and save a lot of money and energy.

    Simple things like caulking around pipes will make your home more comfortable and save a lot of money and energy.

    The Airtight Drywall Approach to a Tight Thermal Envelope

    The building envelope is the part of the house which separates the indoors from the outdoors, and consists of the floor on the bottom level, the ceiling on the top level, the exterior walls, the exterior floor bands, and of course the doors and windows. The standard house envelope leaks air like a sieve and accounts for something like 30 percent of climate control costs due to air infiltration alone. Fortunately during construction it is cheap and easy to make the thermal envelope much tighter and to make a considerable improvement in the energy efficiency of the finished home. According to the Federal Energy Efficiency and Renewable Energy website “Such airtight homes often consume one-third less energy when compared to similar unsealed homes.”

    During the Framing Process

  • Seal under the exterior walls - I recommend that you use construction adhesive to glue your exterior walls down and seal them to the floor all at the same time. You will usually have it on the job anyway for gluing down the floors. Alternatively you can use caulk, foam sealant, or special wall gasket. I’ve used them all and they all work, but I like construction adhesive the best.
  • Use caulk to seal building paper or housewrap (tyveck or equivalent) to the exterior framing at the floor band just below the walls, and to the very top outside of the exterior walls.
  • Tape all building paper or housewrap seams, and repair any rips or tears.
  • Tape building paper or housewrap at windows.
  • Caulk under exterior doors before installation.
  • Seal around windows and exterior doors using caulk or poly foam sealer (great stuff) that is specified for doors and windows. Don’t use the regular expanding foam sealant around windows and doors or it will cause them to bind later on. I highly reccomend the Pella Window and Doors website for its outstanding guides to installing any brand of window or door correctly.

    Framing and Insulation

  • The way most houses in my area are framed there is an area at the junction of exterior walls at the corners and where interior walls join the exterior walls that framers call “Tees, and Corners.” Tees, and corners also refer to a framing detail at these locations that are usually each made out of two studs and three or more blocks of wood, these devices serve as a convenient place to attach the walls together, and to attach the drywall. The problem with tees and corners is that they are almost impossible to insulate so you end up with a three and one half inch area at every one of these locations that has no insulation. In the typical home this adds up to 4-6 feet of un-insulated wall. That is not good. To avoid this situation, don’t use the conventional device; instead just use a single 2×6 stud installed sideways in place of the tee or corner. This gives you a fine place to attach your walls, and drywall. It also saves a lot of labor compared to building the old style devices, and costs less for material, while leaving room to install insulation.
    Conventional corners frmed like this leave a very large area that is difficult or impossible to insulate - note: this picture is of an interior corner for clarity, but we are only concerned with corners on exterior walls.

    Conventional corners framed like this leave a very large area that is difficult or impossible to insulate - note: this picture is of an interior corner for clarity, but we are only concerned with corners on exterior walls.

  • Simply using a 2x4 or 2x6 nailed in sideways like this allows the corner to be well insulated, saves material and work, and is probably just as strong.

    Simply using a 2x4 or 2x6 nailed in sideways like this allows the corner to be well insulated, saves material and work, and is probably just as strong.

  • Another area of framing that often gets no insulation are the headers over windows and exterior doors. Whenever possible use only one piece of lumber (usually either a 2×10 or 2×12) for the header and put it to the outside of the wall so that there is space left on the inside for some insulation. Usually you will be fine with openings up to four feet wide to use a single header, but this is highly variable because of local codes considerations. Check with your codes inspector first.
  • If your attic will have blown in insulation in it, build a box around the attic access hole so that the blown in insulation can come all the way to the access hole without spilling into the house.
  • If it’s at all possible put your attic access in an unheated area such as the garage so that leakage won’t matter.
  • During the Rough in process

  • Insulate the area of exterior walls where tub/shower units will be installed before the fixtures go in.
  • Try to avoid using recessed fixtures in the thermal envelope whenever possible. They are usually full of holes that leak air, and they cause a void in the insulation. If you must use recessed fixtures always use the kinds that are approved for direct contact with insulation.
  • Often plumbers cut a big rectangular hole under each bath tub for the pipes to go through. This is a challenge to seal up neatly, but I have found that I can do a good (although ugly) job by attaching tyveck from under the floor, and then using a lot of foam to cover and seal it from the top. You could also use pieces of plywood laboriously fitted and then sealed I suppose. If anyone finds a better way, I would like to hear it.
  • After wiring, plumbing and HVAC have been roughed in and before installation of insulation or drywall squirt foam sealant in ALL of the holes that have been drilled through the top or bottom plates of ALL walls - not only the exterior walls. The interior walls are important too, because air can be exchanged from the interior to the crawl space and the attic through interior walls.
  • Seal around all penetrations of the exterior wall sheathing. Electricians are notorious for cutting nasty ragged holes to install exterior wall boxes. You will need to arm yourself with tape, caulk, and foam sealant for this job.
  • Use caulk and foam to seal all of the many holes in all electrical rough in boxes including where the wires go through. This sounds like a bigger job than it is. Since you don’t have to worry about being neat, it really doesn’t take very long.

    While Drywall is being Installed

  • Apply a continuous bead of glue to the top and bottom wall plates behind the drywall. The glue at the bottom prevents air from getting into the wall cavity from inside the house, and the glue at the top prevents air from being pulled from the wall cavity into the attic. Also glue the drywall to the frame around doors and windows for the same reasons. If you are contracting out the drywall installation I highly recommend that you hang out while it is being done just to make sure that they both understand what you want and then actually do it. Subs are notorious for ignoring things like this if they aren’t supervised, because once it is done there is no way to inspect it.
  • Tape and mud every single drywall joint even if it will be hidden behind trim, cabinets or other finishes. It doesn’t have to be pretty in these areas but you want to seal them up.

    After Drywall is Installed

  • Caulk or foam around electrical outlet boxes, recessed fixtures, and where plumbing pipes penetrate the drywall.
    Boxes like this will waste a lot of energy if left unsealed - it doesnt look like much, but your house probably has hundreds of them.

    Boxes like this will waste a lot of energy if left unsealed - it doesn't look like much, but your house probably has hundreds of them.

    caulking the holes in your electrical wiring boxes like this can reduce air infiltration, and make your home less drafty and more efficient and comfortable - and its cheap and easy.

    caulking the holes in your electrical wiring boxes like this can reduce air infiltration, and make your home less drafty and more efficient and comfortable - and it's cheap and easy.

  • Before the attic is insulated, get up there and foam or caulk everywhere that you see light coming through around light boxes, bathroom exhaust fans, other recessed fixtures, or anywhere else.

    This ceiling box has been sealed with spray foam insulation from above, but you can do the same thing from below.  Sealing around ceiling boxes is really important because those air leaks are directly into your un-conditioned attic.  And yes, that foam has to be trimmed off.

    This ceiling box has been sealed with spray foam insulation from above, but you can do the same thing from below. Sealing around ceiling boxes is really important because those air leaks are directly into your un-conditioned attic. And yes, that foam has to be trimmed off.

  • If you will have an attic access door, make sure that it is insulated, tight fitting and sealed in place with weather stripping. I usually just use a nice piece of plywood screwed to the ceiling and sealed with stick on weather strip.
  • Use an interior paint or primer that is rated as a vapor barrier.This is based upon the Air Tight Drywall Approach developed by the Canadian Government and is intended to result in a tight thermal envelope which is able to resist inappropriate condensation. What you are after is to prevent drafts from moving through the wall cavities, and ceiling.
  • In conventional (not all that tight) construction a couple of things happen which exchange air between outside and in: 1) wind simply pushes air in through the various cracks making the house “drafty” 2) A thermo siphon or chimney effect causes air that heats up in the attic to draw through the wall cavities pulling your conditioned inside air into the wall cavities (by way of receptacles, fixtures, and cracks) and out via the attic.
  • How to Thaw Frozen Plumbing Pipes

    August 1st, 2008
  • Locate the main water cut off for the house and procure any tools that you may need to quickly turn the water off, in case you have leaks when it thaws out. But unless you suspect that you have burst pipes, don’t turn off the water yet.
  • Open up all of the indoor faucets (sinks, bathtubs, etc) for two reasons: 1) if you can achieve just a little bit of flow through the pipes, then often the flowing water will quickly thaw out the ice remaining in the pipes. 2) To relieve pressure when flow is restored so that any leaks will flow at a slower rate to give you more time to turn off the main water valve, and thereby minimize water damage.
  • Crank up the heat. Try to get heat to the areas that are most likely to be frozen. Obviously the most likely places for the pipes to be frozen are where it is coldest - crawl spaces, unheated basements, water meter boxes, garages, etc. Be careful with space heaters and extension cords, you don’t want to burn down the house. Don’t crank up the heat and then run off to town. Keep an eye on everything just in case the water starts to flow.
  • If your water meter is frozen, you can thaw it out by running an extension cord and putting a hair dryer in the box. Any time you use electricity outside make sure you are plugged into a GFI protected circuit. If your meter is too far from electricity, then you can put a metal paint can full of hot charcoal briquettes in the meter box. Just don’t let it contact anything that is combustible or melt able like plastic water pipes.
  • Find the frozen spot. If a water line is frozen in a basement or crawl space, you can usually find the frozen spot by checking where water lines run near windows or vents, or other drafty cold spots. Check by feeling for bulged or split areas of pipe. A frozen spot is usually pretty easy to feel, because it will be noticeably swollen. If you find ruptured pipes turn off the water before proceeding. When you find a swollen spot apply heat with a hair dryer, or electric heat gun. If you are competent to use a plumbing torch for this then you don’t need my advice.
  • If water starts to flow through any faucets that were not running, then leave it open until you are seeing full flow rates.
  • Prevent refreezing! Block off drafts by whatever means you can, get some heat to those extra cold problem areas, leave a little bit of water running in problem areas, apply pipe insulation, etc.
  • If your water meter freezes, then after you restore flow, stuff the box full of insulation. If you don’t have builders insulation then use whatever you do have - rags, packing peanuts, newspapers, etc. If the meter is not buried deeply enough then pile dirt, or sand on top of it.
  • If your buried water line is frozen, it isn’t buried deep enough. Seek professional help, and plan to have this corrected as soon as possible.
  • If your house is well maintained and appropriately weather proofed, and you don’t turn your heat off, then your pipes will probably never freeze. Try to do better, or pray for global warming to hurry up. Your choice.
  • The Best Whirlpool Smooth Stove Top Cleaner

    July 31st, 2008

    We finally replaced our old open element range with a new Whirlpool smooth ceramic top stove model. We immediately discovered that if you spill anything on it at all that you get some really stubborn stains. The recommended product that came with the range would barely even do anything at all. So, to make a long story short all you have to do is sprinkle a small amount of automatic dishwasher detergent (great value brand from Wal-Mart gets consumer reports highest rating by the way) and a little water then gently scrub with a green scotchbrite pad and it cleans up just like new. After figuring this out I keep a spray bottle of solution (2-3 tablespoons of detergent in 12 oz water more or less) handy and cleanup is a snap.

    This same solution also works great for other tough cleaning jobs like the stainless steel exterior of the gas grill. This solution of automatic dishwasher detergent does a great job of loosening and removing stains, but it will leave the surface hazy unless you follow up with a damp rag or a glass plus type of multi purpose cleaner.

    By the way, the instructions that came with our stove say to only use the factory recommended cleaner, and a clean soft cotton cloth or some such malarky, but after several months of using my method our smooth top stove looks like new. Who knows what they are thinking at Whirlpool.

    Just in case you had any desire to know - Automatic dishwasher detergent uses enzymes which are biological catalysts to drastically speed up the chemical reaction of breaking down fats and proteins. Since the stubborn cooked on stains on your stove top are from foods containing fats and proteins, then dishwasher detergent is just the ticket. So, this isn’t just the best whirlpool stove top cleaner, also keep it in mind for all kinds of food stains including blood. As with any strong cleaner use with caution and at your own risk.

    How to Fix a Toilet That Runs On

    July 31st, 2008

    Repairing a run on Toilet is an EASY do it yourself fix!

    Looking down at the contents of a typical toilet tank

    This is what you see when you look down into your typical toilet tank. The yellow thing at top left is the flush valve also known as a “ballcock”. The gray thing in the middle is the flapper valve. By the way, despite the rust stains in these pictures, the water in the toilet tank is completely clean. This is not a nasty job.

    Toilet supply connections

    Typical supply connections.

    Close up of toilet supply connections

    The water drops that you can see in some of these pictures is condensation that is agravated by the toilet running on. The constantly refreshed cold water in the supply lines, tank and bowl causes lots of condensation. This is not a good thing.

    Turn off the water supply first

    The first step of this repair is to turn off the water. Then flush the commode and hold down the handle to allow as much water as possible to drain out of the tank. If water still runs in (even very slowly) after turning off the supply tap under the tank then you need to find the main water shut off valve for your house and turn off the water there. Any time you turn off all water preasure to your home you should first turn off the electricity to the water heater to avoid burning out the top element. After turning off the water you need to remove as much water as possible from the tank. The easiest and fastest way is to use a wet-or-dry shop vac, but sopping it up with a rag works just as well.

    Losen the supply line

    Remove the supply line from the toilet flush valve. There is usually no need to unhook the line from the supply tap. By the way, the slip joint pliers in this picture is the only tool used in this repair. You might want to put a towel on the floor under the connection to catch any water you missed in the previous step.

    remove the water line from the stand pipe

    Remove the water line from the stand pipe. Some toilets will have a retainer clip here.

    remove the flush valve retainer nut

    After unhooking the supply line remove the flush valve retainer nut.

    Remove the flush valve

    You are now ready to remove the old flush valve.

    Remove the Flapper valve

    Remove the old flapper valve. In this case the flapper connects to ears on the stand pipe, but sometimes it slides down over the stand pipe.

    You are now ready to install the new parts.

    Toilet repair kit
    This is the kit that I used for this article. This type of kit is typical of what is available at any home improvement center. It’s a “Korky” brand “quiet fill” kit which was about $10, but other companies such as Fluidmaster make similar high quality kits.

    contents of toilet repair parts kit
    Here’s what you get for ten bucks. A new flush valve complete with water line, clips, retainer nut, seal, and supply nut and supply seals. Plus a new flapper valve. I didn’t use all of the small parts BTW.

    Comparison of the old parts to the new
    Here is the old flush valve on the left and the new one on the right. Installing the replacement parts is pretty much just the reverse of removing them. But remember Don’t ever tighten anything. It’s easy to come back and re tighten, but if you break something it means another trip to Lowes.

    cutting off the unneeded portion of the flapper
    The new flapper is made so that it will work on any normal commode, but in this case the ring that is made to slide down over the stand pipe has to be cut off before use.

    Installing the new flapper valve
    The flapper installs by slipping the brackets over the ears on the stand pipe.

    attaching the flapper chain
    The flapper chain needs to be adjusted to be as short as is practical. If the chain is too long it can cause either of two problems 1) The chain won’t lift the flapper high enough from the seat for it to float up and the toilet will make a noise like it is clearing it’s throat, but it won’t really flush. 2)The toilet will flush fine but the flapper will sometimes hang on the too-long chain and the commode will run on until someone “jiggles” the handle.

    adjusting the flapper chain

    Tightening the packing nut
    Sometimes the supply stop will leak around the stem after you have used it. If this is the case then you usually just need to tighten the packing nut that the stem goes through.

    After you’ve installed the new parts and turned the water (and the water heater) back on.

  • Check for leaks
  • With the lid still off, flush the commode and make sure that everything works
  • You will probably have to adjust the water fill level according to the instructions that came with your particular kit
  • A lower water level will help to conserve water, but at some point the toilet will no longer flush completely
  • If water runs over the top of the stand pipe the water level is too high (Duh)
  • If water does not run over the top of the stand pipe, but the toilet still runs on, then check that the flapper is lined up correctly and the chain isn’t too short
  • How to Mud and Tape Drywall

    July 31st, 2008

    If you’re patient, you can make a professional quality drywall repair.

    Taping and Finishing Techniques:

    You only need to learn two very simple techniques in order to learn how to mud and tape drywall. For either technique the knife blade is held to the drywall at an angle, and the knife is moved in the direction that the handle is leaning as though you were trying to force the mud into the drywall (which you actually are). The steeper the angle, and the harder you press, the thinner the coat of drywall will be. Leaving the desired amount takes a little bit of practice, but it’s pretty easy to learn. I recommend that you do practice (on a scrap of plywood or drywall) before you start the actual repair.

    Step One - Taping

    Bedded drywall butt joint

    A flat joint that has been taped with mesh tape and the initial skim coat of joint compound. Notice that the skim coat is so thin that you can clearly see the tape through it.

    Step Two - Bedding

    2) Bedding - The point of a bed coat is to actually leave an even layer of mud on the entire area, and not just in the low areas. Do it just like you would a skim coat, but instead of removing most of the mud use a shallower knife angle and lighter pressure to leave a reasonably smooth, opaque layer.

    Note that you can do a thin (skim) coat that is smooth, but a thick (bed) coat will never be really smooth, so don’t worry about “craters” in your bed coat, and don’t worry much about them in the skim coat either.

    Bedded drywall butt joint

    Bedded flat joint. The bed coat has to be thick enough to embed the tape and fully cover it. That is why the bed coat is always a little bit rough. You can’t spread mud thick and smooth at the same time.

    Bedded drywall butt joint

    Closup of the bedded joint. This amount of roughness really is fine during the bedding stage so don’t worry too much, all of those low sposts will fill in during the final skim coat. It is far worse to wipe off too much mud in an attempt to make it smooth. However, you don’t want big protruding humps of mud, because those would have to be sanded down - lot’s of work, and mess.

    Step Three - Skimming

    1) Skimming - To do a skim coat, first with a clean knife, load your knife with a moderate amount of joint compound and apply it to the drywall in a layer that is thick enough to be opaque. That is, you shouldn’t be able to see any texture of the drywall, and the mud will be 1/16″ to 1/8″ thick. Then use the knife to remove almost all of the mud. This will leave a smooth layer of mud that is so thin that you can see the drywall through it, but it will fill in any low places and bring them up flush with the surface.

    Bedded drywall butt joint

    Profesional drywall finisher applying mud to a flat with a paint roller in preparation for the final skim using a 12″ knife. For smaller jobs you will usually just apply the mud using the same knife that you are wiping down with. For your information - premixed joint compound will wash completely out of your clothes, but setting types like durabond might not.

    Bedded drywall butt joint

    Here, he’s wiping it off. Note that he is using a shallow angle and considerable pressure. This is the last application of joint compound prior to sanding. This coat is just as thin as the first skim coat, and smooths out most of the roughness of the bed coat. It’s relatively easy to make a very thin coat like this smooth. However, a do it yourselfer will probably have to do more than one “final” skim coat to achieve really good results. By the way, he is working from left to right in this picture.

    The Process:

    Allow each coat to completely dry, until it no longer has any give at all when you push on the mud lightly with your finger tips.
    1) Fill up all cracks and voids with mud and Skim the excess off of the surface.
    Allow to dry.
    2) Lightly sand to remove any high spots or crumbs.
    Light sanding is almost like “wiping” you really shouldn’t have to work very long or hard at it. Be careful not to sand the paper and make it fuzzy, but if you do it won’t ruin anything at this point.
    3) Apply self stick mesh tape,
    Apply tape over all of the cracks or voids that don’t have continuous drywall under them. Rub it down so that it lays nice and flat everywhere. Try not to overlap the tape, and certainly don’t allow more than 2 pieces of tape to overlap at any one place.
    4) Apply a Skim coat of joint compound over the entire repair.
    Use either a 4″ or 6″ knife. Allow to dry.

    Bedded drywall butt joint

    Flat taped area around a fiberglass tub. Areas like this get a very thick layer of mud to fill in large gaps before they are taped. However once the hole is filled with joint compound it is then taped and skim coated for the initial finishing coat. This is identical to how you do a repair. Lightly sand again as in step 2

    5) Apply a Bed Coat centered over the tape

    Use either an 8″ or 10″ knife. If you have tape joints that cross each other or otherwise form an angle with one another, such as the corners of a square patch, then you will notice that you can produce a nice reasonably smooth bed coat in one direction, but when you bed the joint that crosses the first one, then the first bed joint gets kind of messed up. Don’t worry too much about it at this time; just do the best you can. Try to finish each joint with a single smooth stroke of your knife. Again, don’t sweat the details too much at this point. Allow to dry. Lightly sand again as in step 2

    6) Apply a Skim coat of joint compound over the entire repair

    Use a 12″ knife. You want to use that big knife to feather the repair out in all directions starting from the high point that you made with the bed coat in step 7. That is when you strike off (remove) most of the mud one end of your knife will be riding on the slightly thicker bed coat right over the tape joint, and the other end will be on the drywall. Don’t use too much pressure so that the 12″ knife will bridge the gap and leave a layer of mud that is just thick enough to fill in the low place between these two points. Allow to dry. Lightly sand again as in step 2

    7)Take a good look at your work
    If the patch was just a single straight tape joint, then it probably looks pretty good at this point. If you see low spots and/or craters, then you probably need to do another thin skim coat using a 6″ or 8″ knife.

    It may take several cycles of skim coats and sanding to achieve the desired result, but you can do it, even with no previous experience.

    The final step is to sand thoroughly, until the repair is as smooth and flat as possible.

    You should be aware that a drywall repair is always a multi part process, and is usually going to stretch over more than one day, and you will need a few specialized tools.
    Drywall tools

    Tools:

    1) Mud Pan or Hawk - This is what you use to hold the drywall joint compound while you work with it, and to clean your knife while you are working. Instead of buying a pan or hawk you can also use a scrap of wood or drywall that has at least one good straight edge to wipe your knife on.

    2) Drywall knives - You might think of these as “putty knives” If the repair you are doing is very small (smaller than a quarter) you can get by with one 4″ knife, but if it is any bigger then you will need 3 knives:

  • a) Either a 3″ or 4″ or 6″ knife for taping
  • b) Either a 8″ or 10″ knife for bedding
  • c) A 12″ knife for the skim coat
  • 3) Sandpaper or a sanding sponge

    4) You might also need a utility knife, and/or a drywall saw.

    Professional quality tools will help you to more easily get high quality results, and I would always recommend that any time you make a tool purchase that you buy the best quality that you can afford. Good tools are an investment that will last a lifetime if properly cared for. However, if you are on the cheap, you can actually get very good results with plastic drywall knives.

    Materials:

    1) Drywall tape - Either paper tape, or mesh tape will work, but mesh tape is easier to work with.

    2) Drywall Joint compound - “Premixed” lightweight joint compound will work just fine, but I recommend that you use “setting type” joint compound which comes as a powder that you mix with water, because it dries faster, doesn’t shrink, and it will last almost indefinitely on the shelf if you keep it dry. Be SURE that you get the “easy sand” type if you use setting type joint compound, because the kind that does not say “easy sand” should be labeled “so danged hard that you can’t sand it at all”. Setting type joint compound is also rated by how long it takes to harden. There are 20, 45, and 90 minute varieties. I do not recommend the 20 minute variety for the do it yourselfer, because it hardens too fast, and if you mix more than a very small amount you can’t use it up before it becomes unusable.

    3) If you are repairing an actual hole that is no larger than 6″ square you can use a self adhesive drywall patch, if the repair is larger, you will probably need to put in a piece of drywall using drywall repair clips. If you are only repairing a crack or dent, then you don’t have to worry about it. However, joint compound is only intended to be used in thin layers (usually a total of about ¼” for the entire repair), so don’t try to reconstruct a gapping hole with only join compound.

    Drywall and Mudding tips:

    1) Keep your knife clean throughout the process.

    2) Always do a good job of cleaning and drying your tools between steps.

    3) Mix a drop or two of dish washing liquid with the mud. It will allow you to get smoother results.

    4) If you use pre mixed joint compound, to avoid contaminating your material with bits of dried mud, use a knife to scrape all of the mud that you can off of the sides of the bucket, smooth out the top of the leftover mud, then cover the surface with saran wrap before tightly replacing the lid. A tiny bit of dried mud mixed with what you are trying to use will make it almost impossible to get good results.

    5) Usually “pre mixed” joint compound is too thick and you will need to add a little bit of water to thin it.

    6) Always allow the previous work to dry thoroughly before you continue.

    7) Sanding drywall creates a lot of fine dust, and you should take appropriate measures to protect yourself from breathing it.

    8) An expert drywall finisher will accomplish good results in fewer steps, and probably won’t need to sand much, if at all, between coats, but this isn’t intended for the expert.

    9) If the effort it takes to learn how to mud and tape drywall seems like a lot of trouble, then keep this in mind; a pro will probably charge you at least $200-$300 for a repair like this, because of the multiple steps and return trips.

    Bedded drywall butt joint

    Bedded butt joint showing a little (acceptable) roughness.

    Bedded drywall butt joint

    Profesional drywall finisher skim coating a flat using a 12″ knife.

    Bedded drywall butt joint

    An inside corner that has been taped with mesh tape and the initial skim coat of joint compound.

    How to replace a Clothes Dryer Element

    July 31st, 2008

    If your electric clothes dryer runs but doesn’t get warm then you probably need a new heating element.

    This is an Amana brand dryer. Apparently all Amana and Speed Queen dryers use the exact same parts and repair proceedure. I would consider this a very simple clothes dryer repair that is well within the reach of just about anyone who would be willing to tackle it. Estimated time required is 30-60 minutes. The Part was about $40.

    Replacing a dryer element

    These are the only tools that you need for this job: A 5/16″ nut driver, wire stripper, electrical tape, and flashlight.

    Replacing a dryer element

    First, unplug the dryer.

    Replacing a dryer element

    Those screws that are just visible at the bottom front corners are the ones you need to remove to open the cabinet.

    Replacing a dryer element

    This is the new heating element.

    Replacing a dryer element

    This is the other side of the new heating element.

    Replacing a dryer element

    Here I’m using my handy dandy Enders brand 6 in 1 screw driver as a 5/16 nut driver to remove the access panel.

    Replacing a dryer element

    Putting a two by four under the front edge of the dryer makes it a lot easier to get at these screws.

    Replacing a dryer element

    Off comes the access panel…

    Replacing a dryer element

    First glimps inside of the clothes dryer…

    Replacing a dryer element

    That black plastic blower housing doesn’t have to come off, but removing it only involves 3 screws and greatly improves access.

    Replacing a dryer element

    Replacing a dryer element

    Replacing a dryer element

    Here’s the view inside. Way back on the left is the old element. Plenty of dryer lint in there… Vacuming it out would probably be a really good idea.

    Replacing a dryer element

    The dryer element is only held in place by two 5/16 screws that are easily accessable. Although access does involve laying face down on the floor and reaching about as far back as I can reach.

    Replacing a dryer element

    Here is the new element on the right and the old one on the left. If you look close you will notice that the wires aren’t plugged into the correct places on the new element. It is quite easy to switch them around when they are side by side like this.

    Replacing a dryer element

    This burnt insulation means that I have to replace the female spade connector. Luckily my replacement part came with two pre-made “pigtails” for just such occasions.

    Replacing a dryer element

    Cut the burnt part of the wire off.

    Replacing a dryer element

    Strip about 3/4″ of both wires…

    Replacing a dryer element

    Twist them together and then trim to about 1/2″. Be Sure and twist clockwise so that the splice will tighten when you screw on the wire nut.

    Replacing a dryer element

    Screw on the wire nut as far as it will go. BTW the wire nuts came with the new element.

    Replacing a dryer element

    Since a clothes dryer is subject to vibration it is a good idea to secure the wire nut with a few turns of electrical tape.

    Replacing a dryer element

    All connections are made and the heating element is ready to install. I recommend that you do plug in the wires and make the connections before installing the element, because it’s pretty hard to reach back in there after it’s in place, and the wires don’t get in your way at all.

    Replacing a dryer element

    The new element is in place. Now just replace the black plastic blower housing, the front access cover, remove the 2 by 4, and plug ‘er in. Total clothes dryer repair elapsed time, about 30 minutes, If you don’t run into any snags.

    Your Dryer isn’t like this? Try looking here for Dryer Disasembly how tos on other brands.