Installation Guide

SECTION IX

AIR FOR COMBUSTION AND VENTILATION INSIDE BUILDING

This fresh air would come from an adjoining unconﬁ ned space. When venting to an adjoining space, you must

provide two permanent openings: one within 12" of ceiling and one within 12" of ﬂ oor, on wall connecting two

spaces. (See Options 1 and 2 below.) You can also remove door into adjoining room. (See Option 3 below.)

WARNING: REWORK WORKSHEET, ADDING SPACE OF ADJOINING UNCONFINED SPACE.

COMBINED SPACES MUST HAVE ADEQUATE AMOUNT OF AIR TO SUPPLY

ALL APPLIANCES IN BOTH SPACES

NOTE: Each opening shall have a minimum free area of 1 square inch per 1000 BTU’s per hour of the total

input ratings of all gas utilization equipment in the conﬁ ned space, but not less than 100 square inches.

Ventilation Air From Inside Building

WARNING: THIS HEATER MUST HAVE ADEQUATE AMOUNT OF AIR FOR PROPER OPERATION.

IF NOT, POOR FUEL COMBUSTION COULD RESULT. READ THE FOLLOWING INSTRUCTIONS TO

ENSURE PROPER AMOUNT OF AIR FOR THIS AND OTHER FUEL-BURNING APPLIANCES IN YOUR

HOME.