Attic Furnace Dimensions

At least 7 feet in any direction.

Attic furnace dimensions. As an example a floor space that totals 70 sq. 30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm. The 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches. An example you can reference.

Would still not be allowed because its 4 x 17 5 dimensions. Horizontal furnaces shall be permitted to be installed in an attic furred. To prevent homeowners from building strangely configured and potentially dangerous spaces. Establish the best location for installation of forced air unit and vent.

Floor space dimensions. If the same 100 000 btu furnace has an efficiency rating of 93 it will produce. 100 000 btu input x 93 efficiency 93 000 btu actual output. An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size.

Exceeding 5 feet 1524 mm in height provided the required listings and furnace and duct. 100 000 btu input x 80 efficiency 80 000 btu actual output. Upright furnaces shall be permitted to be installed in an attic furred or under floor space. Attic furnace passageway minimum dimensions requirements.

Obtain the furnace manufacturers installation instructions and install the furnace to their specifications. The rough framed opening. In one scenario this would translate to a bare minimum of 7 x 10. Some products like furnaces may also be affected by installation orientation horizontal upflow or downflow or even by the nozzle used in installation as is the case with boilers and oil furnaces.