Desa VGC18NR/PR Electric Heater User Manual


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119162-01C8
AIR FOR COMbUSTION
AND VENTILATION
Continued

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 oor. Connect these items directly to the
outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostat-
controlled power vent. Heated air entering the attic
will activate the power vent.
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air
Ventilated
Crawl Space
To
Crawl
Space
To Attic
INSTALLATION
NOTICE: This heater is intended
    


     -








-


NOTICE: State or local codes

-


WARNING: Make sure the
-



    
-

   
    



-
    

WARNING: Seal any fresh
air vents or ash clean-out doors
-

   
   

WARNING: Never install the
heater
     
unless installed as a vented

• in a recreational vehicle
•
where curtains, furniture, cloth-

are less than 42" from the front,

 
• in windy or drafty areas
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