Attic Furnace Installation

When ours was installed in the attic during 2005 the installers put in a nice ceiling door and electrical switches for lighting and furnace master on off switch.

Attic furnace installation.

An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size. The original equipment installed when the home was built was supported on the attic floor. An attic furnace is closer to the upper stories of a multi level home. A furnace in the attic also costs less to install than other designs since the access point to it is usually through the roof.

Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area. The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics. The inside equipment will be in the attic which is typical for this area. One proposes suspending the new furnace from the rafters.

Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient. Two of the contractors propose installing the new equipment on the floor like the original system was installed. Attic furnaces take advantage of the closer proximity to use shorter lengths of air. A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic.

Establish the best location for installation of forced air unit and vent. In our area in southern california it is pretty standard to install the furnace in the attic. That makes cheaper to replace a broken unit while reducing the cost for repairs. Obtain the furnace manufacturers installation instructions and install the furnace to their specifications.

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. Usually this is done after removing the 1950 s original heaters in the lower walls floors. It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does.

Attic furnace passageway and service area electrical requirement. This drain removes the excess water that a heating system will generate.