Combustion Air Requirements - A-Maize-Ing Heat NRP620-9 Installation Manual

Combustion Air Requirements

Install the A-Maize-Ing Heat ® furnace in a room with adequate air for combustion and ventilation -
60 cubic feet per minute minimum.
Minimum clearances for the A-Maize-Ing Heat ® furnace is 32" from top of furnace to ceiling, 30"
from the front of the furnace to the wall, 18" on either side and 18" from the back of the furnace to
the wall.
The A-Maize-Ing Heat ® furnace is for use as a primary heat source. The A-Maize-Ing Heat ® furnace
should be installed with the metal hot air plenum connected to metal hot air duct work and metal
cold air return plenum joined to return air system. This unit is not designed to be installed as an
add-on furnace. If you plan to use the A-Maize-Ing Heat ® furnace in conjunction with another
furnace, install safety measures to prevent air back feed from one furnace to the other. Failure to
take this precaution could cause either furnace to overheat.
**IMPORTANT**
Maintain the 14" x 14" (196 sq. in.) hot air and return air connections to your existing duct work.
Reduction in size of these connections can restrict air movement over and through the heat
exchanger, resulting in overheating and operational problems with the furnace.
NRPIM620-9-20131212 Rev 1 Page 7 of 24