How To Install Gas Furnace In Attic

Here is a basic overview of what you can find in the above tutorial video.

How to install gas furnace in 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. The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics. Before connecting the gas line it is recommended to install a drip leg in the form of a tee. Attic furnace access passageway and platform.

The chance of a gas leak in the attic would be slim. The total drop in efficiency can be up to 35. The drain must be installed through the core of the house as water will be flowing during the colder months. Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.

The gas line is connected in the top of the tee and runs straight into the furnace. Attic furnace passageway and service area electrical requirement. High efficiency furnaces aren t usually recommended for an attic. This drain removes the excess water that a heating system will generate.

A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area. Mount unistruts to your furnace. Mount two lengths of unistruts to the rafters.

The tee features a capped nipple on the bottom which helps trap sediment. Once the gas line is connected double check for leaks by using a gas detector. Modern gas furnaces are electronic ignition and when the flame isn t burning there is no pilot light gas being used etc. This part is a 3 man.

That means you have higher energy costs and less efficiency since you re blowing the air down instead of allowing it to rise naturally.