Installation Guide
www.usaprocom.com
7200199-01B
AIR FOR COMBUSTION AND VENTILATION
 WARNING: This heater shall 
not  be  installed  in  a  conned 
space or unusually tight con-
struction unless provisions are 
provided for adequate combus-
tion and ventilation air. Read the 
following instructions to insure 
proper fresh air for this and other 
fuel-burning appliances in your 
home.
Today’s homes are built more energy efcient 
than ever. New materials, increased insulation 
and new  construction  methods  help reduce 
heat  loss  in homes.  Home  owners  weather 
strip  and  caulk  around  windows  and  doors 
to keep the cold air out and the warm air in. 
During  heating  months,  home  owners  want 
their homes as airtight as possible.
While it is good to make your home energy 
efcient, your home needs to breathe. Fresh 
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion 
and ventilation.
Exhaust fans, replaces, clothes dryers and 
fuel  burning  appliances  draw  air  from  the 
house to operate. You must provide adequate 
fresh air for these appliances. This will insure 
proper venting  of  vented  fuel-burning appli-
ances.
 WARNING: This heater shall 
not  be  installed  in  a  room  or 
space unless the required vol-
ume  of  indoor  combustion  air 
is  provided by the method de-
scribed in the National Fuel Gas 
Code, ANSI Z223.1/NFPA 54, the 
International Fuel Gas Code, or 
applicable local codes.
 WARNING: If the area in which 
the heater may be operated does 
not meet the required volume for 
indoor combustion air, combus-
tion and ventilation air shall be 
provided by one of the methods 
described  in  the  National Fuel 
Gas Code, ANSI Z223.1/NFPA 54, 
the International Fuel Gas Code, 
or applicable local codes.










