Today that s not as true as it s become more evident that there are some real and significant drawbacks to putting a furnace in an attic.
Attic furnace detail.
Appliance in the attic attic furnace access passageway and platform access opening and an unobstructed passage way to the appliance furnace in attic area must be provided and be adequate in size to allow removal of the largest appliance installed.
Although still commonly suggested by some hvac contractors it was a much more popular option in the past.
A home s furnace is commonly located in a secluded area from a closet to a basement.
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.
Attic access may be reduced to 22 x 30 provided the largest piece of equipment can be removed.
Attic furnace appliance clear access opening dimensions are.
An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size.
Upright furnaces shall be permitted to be installed in an attic furred or under floor space exceeding 5 feet 1524 mm in height provided the required listings and furnace and duct clearances are observed.
Whatever the reason you have questioning the placement of a furnace in an attic is a good idea.
Horizontal furnaces shall be permitted to be installed in an attic furred.