Combustion & Ventilation Air - COZY W255F Installation And Operating Instructions Manual

COMBUSTION AND VENTILATION AIR
ALL COMBUSTION AIR FROM
ADJACENT INDOOR SPACES
THROUGH INDOOR COMBUSTION
AIR OPENINGS
UL Listed Vent Cap
UL Listed Gas Vent
FIGURE A
ALL COMBUSTION AIR FROM
OUTDOORS. INLET AIR FROM
VENTILATED CRAWL SPACE AND
OUTLET AIR TO VENTILATED ATTIC.
UL Listed Vent Cap
UL Listed Gas Vent
Ventilation Louvers
(each end of attic)
Outlet Air
Inlet Air
Ventilation
louvers for unheated
crawl space
FIGURE B
Opening
Opening
ALL COMBUSTION AIR FROM OUTDOORS
THROUGH VENTILATED ATTIC
UL Listed Vent Cap
UL Listed Gas Vent
ALL COMBUSTION AIR FROM OUTDOORS
THROUGH SINGLE COMBUSTION AIR OPENING
Page 5
Ventilation Louvers
(each end of attic)
Inlet
Outlet Air
Grille
Inlet Air Duct
Inlet
(Ends 1 ft. [300mm] above floor)
Grille
FIGURE C
UL Listed Vent Cap
UL Listed Gas Vent
Alternate
Opening
Location
FIGURE D
Opening