An attic furnace is closer to the upper stories of a multi level home.
Furnace platform attic.
Attic furnace walkway platform attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area.
A level working platform or grade surface not less than 30 inches 762 mm by 30 inches 762.
Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient.
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To provide a platform all you need is some wood planks nailed to the joists in front of 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.
This handout is intended to provide only general information for further information contact the.
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.
You might not receive the same air movement benefits if the unit is in a garage either.
Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.
When you place a furnace in the attic to take advantage of its.
A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic.
There are rarely instances when we will advise against an attic installation.
The following are general requirements for an attic furnace based on the 2019 ca mechanical code.
Attic furnaces take advantage of the closer proximity to use shorter lengths of air.
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.
Attic furnace access passageway and platform attic furnace passageway and.
An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size.
If the unit is not located near the attic access a catwalk from the access to the platform is.
It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does.
If you don t have a crawl space or a basement then it can be a challenge to place a furnace on the ground floor of the structure.
Install passageway platform minimum 24 inches width and maximum 20 feet in length to fau.
There is a common misconception that this is not possible for high efficiency furnaces.