7
Ventilation Air From Inside Building
This fresh air would come from adjoining unconfined space. When ventilating
to an adjoining unconfined space, you must provide two permanent openings:
one within 12 inches of the wall connecting the two spaces (see options 1 and
2, Figure 1). You can also remove door into adjoining room (see option 3,
Figure 1). Follow the National Fuel Gas Code NFPA 54/ANS Z223.1. Section
5.3,
“
Air for Combustion and Ventilation
”
for required size of ventilation grills
or ducts.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or duct. 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 (see Figure 2). These spaces include attics and crawl
spaces. Follow the National Fuel Gas Code NFPA 54/ANS 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 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.
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.
WARNING:
A qualified technician must install heater. Follow all local codes.
WARNING:
Never install the heater
·
in a bedroom or bathroom
·
in a recreational vehicle
·
flammable objects are less than 42 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 discolor walls.
WARNING:
Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling and
adjoining side and back walls.
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 from too much moisture. See
Air for Combustion and Ventilation
, pages
5 through 7.
CHECK GAS TYPE
Use only the type of gas indicated on the plate. If your gas supply can not meet that requirement, do not install heater.
Call the dealer where you purchased heater for the proper type of heater.
Figure 1 - Ventilation Air from Inside
Building
Figure 2 - Ventilation Air from Outdoors
