Insulating Gas Furnace In Attic

Turn the water heater or furnace off and allow the flue to cool to the touch.

Insulating gas furnace in attic.

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. Square footage of your attic. Whether the home is old or new however anyone considering spray foam insulation would be wise to ask this question. I would only do this with a signed contract from the customer stating the installation company is not responsible for leaks.

Spray polyurethane foam spf is a popular insulation product for homes and buildings. The first and possibly most important thing is to make a commitment to yourself to change your hvac filters regularly. 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. 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.

The main factors that impact the cost are. Measure the circumference of the flue. How to insulate a metal flue pipe. Heating cooling a while back i wrote about the incompatibility of putting an atmospheric combustion furnace in a sealed attic.

According to home advisor insulating your attic can cost between 1700 to 2100. Time would probly be better spent sealing duct leakage. Would save more money in the long run and help indoor air quality. Sealed combustion appliances fueled with natural gas cost less to operate than electric ones.

Also put the furnace on a box with a secondary drain pan beneath a wet switch and an e z trap. 01 15 2011 01 10 am 8. Especially for roofs and attics. 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.

Type and material of your insulation. That means you have higher energy costs and less efficiency since you re blowing the air down instead of allowing it to rise naturally. Cut two flat sheets of aluminum flashing that are 14 inches long and narrow enough to fit between the ceiling joists around the flue. The total drop in efficiency can be up to 35.