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.
Attic forced air furnace.
Attic hvac system saves space.
It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does.
The total drop in efficiency can be up to 35.
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Air conditioner furnace in attic installations cost less.
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.
That s because more families are discovering only miller furnaces offer such incredible efficiency and comfort plus lots of other value added features.
Attic hvac units can be inefficient.
Regular maintenance of an attic air conditoner furnace is harder.
Hvac units in attics have undetected problems.
That means you have higher energy costs and less efficiency since you re blowing the air down instead of allowing it to rise naturally.
Although still commonly suggested by some hvac contractors it was a much more popular option in the past.
Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient.