It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does.
Attic forced air furnace.
That means you have higher energy costs and less efficiency since you re blowing the air down instead of allowing it to rise naturally.
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.
If you place the furnace in the attic then you must install the infrastructure in the building to force the warm air to the bottom floor.
Regular maintenance of an attic air conditoner furnace is harder.
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An attic furnace is closer to the upper stories of a multi level home.
Attic hvac system saves space.
Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient.
The total drop in efficiency can be up to 35.
Air conditioner furnace in attic installations cost less.
Although still commonly suggested by some hvac contractors it was a much more popular option in the past.
Attic hvac units can be inefficient.
Hvac units in attics have undetected problems.