Horizontal Furnace Installation In Attic

Refer to the furnace rating plate.

Horizontal furnace installation in attic. Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space. A horizontal gas furnace installation in an attic should be on a service platform large enough to allow for proper clearances on all sides and service access to the front of the furnace see manufacturer s i o manual. 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.

One of the latest talking points in this area is the installation of a furnace in the attic. When you have this unit in a space that you normally don t use then it creates more usable space in your living environment. Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area. These furnaces are designed as either horizontal left or horizontal right referring to the side the heated air comes from.

Install this furnace only in a location and position as specified in location and clearances page 4 of these instructions. A furnace in the attic also costs less to install than other designs since the access point to it is usually through the roof. A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. Cool air flows in on one side and heated air flows out the other.

This drain removes the excess water that a heating system will generate. Horizontal units can be installed in attics garages or basements either by placing the device on a platform or suspending it from the ceiling. Use only with the type of gas approved for this fur nace. Followed during the installation servicing and opera tion of this furnace.

High efficiency furnaces aren t usually recommended for an attic. A horizontal furnace is designed with the components in a horizontal row so the unit looks like it s lying on its side. Horizontal installation is also available for some furnace and air handler models.