When you place a furnace in the attic to take advantage of its.
Attic furnace enclosure.
A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic.
Well mainly it s a way to save space.
How to build a furnace enclosure.
High efficiency furnaces aren t usually recommended for an attic.
Furnaces in basements.
So why put an hvac system up in the attic at all.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
You might not receive the same air movement benefits if the unit is in a garage either.
Attic hvac systems save space.
But you could put only one in this attic.
That would be a medium sized furnace.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
A furnace in the attic is a design that works for all homes.
A while back i wrote about the incompatibility of putting an atmospheric combustion furnace in a sealed attic.
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.
The horizontal furnace may also be suspended from the joists using 3 8 all thread rods with pieces of angle iron underneath the furnace to form a hanging rack at both ends and the midpoint.
If the attic has a floor area of 800 square feet and an average height of 4 feet for example the volume would be 3200 cubic feet.
A furnace can be installed various places in a house in a basement an attic a garage a ground floor utility room or outside the walls.
Attic furnaces take advantage of the closer proximity to use shorter lengths of air.
The good news is that some installers understand this problem and seek to address.
Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.
The rods need to be of sufficient length to allow for proper clearances from combustible materials.
Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient.
An attic furnace is closer to the upper stories of a multi level home.