Attic Furnace Requirements

The opening passageway must allow for unobstructed access.

Attic furnace requirements.

Well mainly it s a way to save space. 904 10 furnace upright and horizontal. So why put an hvac system up in the attic at all. That means you have higher energy costs and less efficiency since you re blowing the air down instead of allowing it to rise naturally.

An attic furnace is closer to the upper stories of a multi level home. Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. Attic furnace passageway minimum dimensions requirements.

It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does. 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. The total drop in efficiency can be up to 35. 30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm.

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.