10
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You
must provide two permanent openings: one within 12 inches of
the ceiling and one within 12 inches of the floor. 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, Air for
Combustion and Ventilation for required size of ventilation grills
or ducts.
Figure 3 - Ventilation Air from Outdoors
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. Rework
worksheet, adding the space of the adjoining unconfined space. The combined spaces must have
enough fresh air to supply all appliances in both spaces.
7. INSTALLATION
NOTICE:
This heater is intended for use as supplemental heat. Use this heater along with your
primary heating system. Do not install this heater as your primary heat source. If you have a central
heating system, you may run system’s circulating blower while using heater. This will help circulate the
heat throughout the house. In the event of a power outage, you can use this heater as your primary heat
source.
Caution:
If you install the heater in a home garage:
Heater pilot and burner must be at least
18 inches above the floor.
Place heater where moving
vehicle will not hit it.
WARNING:
A qualified service person must install heater. Follow all local codes.
WARNING:
Never install the heater
in a recreational vehicle
where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the
front, top, or sides of the heater
in high traffic areas
in windy or drafty areas
CAUTION:
This heater creates warm air currents. These currents move heat to wall surfaces next to
heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as
tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may cause
walls to discolor.
IMPORTANT:
Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in
rooms without enough ventilation air may cause mildew to form too much moisture. See Air for
Combustion and Ventilation.
