Insulating Gas Furnace In Attic

Time would probly be better spent sealing duct leakage.

Insulating gas furnace in attic.

Heating cooling a while back i wrote about the incompatibility of putting an atmospheric combustion furnace in a sealed attic. If you place the furnace in the attic then you must install the infrastructure in the building to force the warm air to the bottom floor. That means you have higher energy costs and less efficiency since you re blowing the air down instead of allowing it to rise naturally. Whether the home is old or new however anyone considering spray foam insulation would be wise to ask this question.

Most often the attic is sealed by installing spray foam insulation at the roofline thus bringing the attic inside the building enclosure and turning it into conditioned space directly or indirectly. Square footage of your attic. If the atmospheric combustion appliances start off in a vented attic the building code doesn t require those vents because the appliances are already connected to the outside and should get plenty of air. I would only do this with a signed contract from the customer stating the installation company is not responsible for leaks.

Cut two flat sheets of aluminum flashing that are 14 inches long and narrow enough to fit between the ceiling joists around the flue. Sealed combustion appliances fueled with natural gas cost less to operate than electric ones. Contractor or insulation installer s fee. How to insulate a metal flue pipe.

Spray polyurethane foam spf is a popular insulation product for homes and buildings. Having your hvac system in your attic isn t dire though you ll need to do some work to keep your air conditioner or furnace system running as efficiently as possible. 01 15 2011 01 10 am 8. Measure the circumference of the flue.

Type and material of your insulation. Also put the furnace on a box with a secondary drain pan beneath a wet switch and an e z trap. Would save more money in the long run and help indoor air quality. Turn the water heater or furnace off and allow the flue to cool to the touch.

Especially for roofs and attics. According to home advisor insulating your attic can cost between 1700 to 2100. The first and possibly most important thing is to make a commitment to yourself to change your hvac filters regularly. In my parts you need to build an insulated room for a 90 in an attic.