National Comfort Product Comfort Pack Electric Installation Instructions Manual - page 16
Venting
The venting system is an integral part of the heater as shipped to you. Do not modify
or add to the vent system. The heat system includes an exhaust blower. The blower draws
the gas and air required for combustion through the heat exchanger, and forces the product
of combustion to the outside. A chimney is not required. No special provisions are required
for supply combustion air.
The vent of the unit is located at the front grille. Distances from adjacent public
walkways, adjacent buildings, openable windows, and building openings must be
consistent with the National Fuel Gas Code (NFPA 54/ANSI Z223.1) and/or
(CAN/CGA-B149), as well as local codes.
When locating the heater, consider general space, heating requirements, and availability
of gas and electrical supply. It is important that the exhaust vent will be directed to the
outside atmosphere. The unit must be installed level. Do not install where flue products
can be drawn into adjacent building openings (windows, fresh air intakes, etc.). The unit
should not be located over public walkways
or over an area where condensate or
vapor could create a nuisance or hazard
as well as effecting the operation
of regulators, relief openings, or
other equipment. Follow proper
code for placement under overhangs,
porches and vented soffits where
condensate from combustion flues
could build. Precautions must be
taken to prevent degradation of
building materials by flue products.
Installation/Instruction Manual for Architects & Engineers
14.
2 3/8”
33 1/2”
6 5/8”
18 9/16”
2 3/4”
7 1/16”
Vent