New Buck Corporation 1110 User Manual

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Figure 9 
VENTILATED ATTIC 
OUTLET AIR 
OUTLET AIR  
INLET AIR 
TO ATTIC 
TO 
CRAWL 
SPACE 
INLET AIR 
VENTILATED 
CRAWL SPACE 
VENTILATION AIR FROM OUTDOORS 
 
Provide extra fresh air by using ventilation grills or ducts.  You must provide two permanent 
openings: one within 12" of the ceiling and one within 12" of the floor.  Connect these items 
directly to the outdoors.  These spaces include attics and crawl spaces.  Follow the National 
Fuel Gas Code NFPA 54/ANSI Z223.1
, Section 5.3, “Air For Combustion and Ventilation” 
for required size of ventilation grills or ducts. 
 
IMPORTANT:  Do not provide openings for inlet air into attic if attic has a thermostat-
controlled power vent.  Heated air entering the attic will activate the power unit. 
WARNING 
 
THIS APPLIANCE MUST HAVE FRESH AIR FOR PROPER OPERATION.  IF NOT, 
POOR FUEL COMBUSTION COULD RESULT.  READ THE FOLLOWING 
INSTRUCTIONS TO ENSURE PROPER FRESH AIR FOR THIS AND OTHER FUEL-
BURNING APPLIANCES IN YOUR HOME. 
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