How To Install Gas Furnace In Attic

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

How to install 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. 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. The combustion chamber will also be vented to the exterior so not much chance of a carbon monoxide problem either. The drain must be installed through the core of the house as water will be flowing during the colder months.

This drain removes the excess water that a heating system will generate. Mount two lengths of unistruts to the rafters. 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. Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area.

Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space. High efficiency furnaces aren t usually recommended for an attic. The total drop in efficiency can be up to 35. The gas line is connected in the top of the tee and runs straight into the furnace.

The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics. Attic furnace access passageway and platform. Put the nuts in the mounted unistruts into place so they can secure the all thread rods measure the distance between. The chance of a gas leak in the attic would be slim.

Modern gas furnaces are electronic ignition and when the flame isn t burning there is no pilot light gas being used etc. Before connecting the gas line it is recommended to install a drip leg in the form of a tee. Once the gas line is connected double check for leaks by using a gas detector. This part is a 3 man.

Attic furnace passageway and service area electrical requirement.