Attic Furnace Freezing

I have two aman gas fired warm air furnaces in my attic that are blowing cold air only.

Attic furnace freezing.

If the drain is located too close to the outside of the home it may freeze in the coldest of winter weather. It s just as safe for it to be in the attic as it is in the basement. There loos like a water line that goes into the unit. The primary reason why furnace placement occurs on the bottom floor of a structure is because the warmer temperatures rise to displace the colder air.

A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. It feels cold and could be frozen. One point about a 90 in the attic in a cold climate is if the proper steps are not taken you can freeze a condensate line up there. Common causes include a dirty air filter blocked condensate lines refrigerant leaks and component malfunctions.

There are several reasons for your hvac system to freeze up. The drain must be installed through the core of the house as water will be flowing during the colder months. List of the cons of a furnace in the attic 1. In some cases you can correct a frozen system yourself while other issues require a professional s help.

My builders are struggling to maintain profitability in a competitive market. It will lower the efficiency of your furnace. Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space. Attics though ventilated with outside air tend to stay a fair bit warmer than the outside.

My question is with real constraints a 95 furnace in an attic with the need for condensate drain and potential for freezing what is a best practice under these circumstances. You only have to worry about the attic if it gets below freezing in there. I have to run the drain 40 ft in a cold attic. High efficiency furnaces aren t usually recommended for an attic.

How do i avoid drain freezing from my attic gas furnace. I would guess that unless you have good runs of outside temperatures consistently below 0f 18c you shouldn t have a freezing problem in your attic. Keep a 90 percent furnace out of an attic if you have cold temperatures.