Insulating Gas Furnace In Attic

Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.

Insulating gas furnace in attic.

A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. High efficiency furnaces aren t usually recommended for an attic. The trick to the installation of a gas furnace in an attic space is routing the condensate drain from the attic down through the core of the house to the basement. 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.

Fiberglass insulation cannot just butt up to the vent pipe touching it. When you can use natural gas over electricity there is an opportunity to boost the efficiency rate of your furnace as well. It is important to note the optimal conditions for an attic installation is when the attic is fully insulated making it a conditioned space. Now that you have safely sealed the air leaks around the furnace exhaust you can work on insulating your attic space.

How to insulate a metal flue pipe. The department of energy predicts that prices for natural gas and heating oil will rise again this winter compared with last and that s after a year in which heating oil prices rose sharply in most. A furnace in the attic is a design that works for all homes. Insulating the walls and ceiling in a furnace room can reduce heating costs and make the furnace more energy efficient.

If a high efficiency unit can hit 90 with a typical installation then you can achieve a rating of at least 65 with a standard installation. Although fiberglass may not burn it can melt contribute to a fire and the speed at which it spreads. The flue is the metal tubing that extends up from the top of your gas furnace or water heater that carries the carbon monoxide gas from the heating unit to your. The good news is that some installers understand this problem and seek to address.

A while back i wrote about the incompatibility of putting an atmospheric combustion furnace in a sealed attic. Rigid foam insulation is attached to the walls with adhesive and to the. If your house is in a cold climate keeping it warm in winter is expensive. Insulating around a furnace exhaust pipe.

The attic is a sealed space by polyurethane foam and will need a combustion air source.