Air For Combustion - Desa Comfort Glow CGCF26TN Owner's Operation And Installation Manual

AIR FOR
COMBUSTION
AND
VENTILATION
Continued
WARNING
If the area in which the heater may be operated is smaller than
that defined as an unconfined space, provide adequate combus-
tion and ventilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3 or appli-
cable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to
an adjoining unconfined space, you must provide two permanent openings: one within
12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces
(see options 1 and 2, Figure 4). You can also remove door into adjoining room (see
option 3, Figure 4). Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1,
Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills
or ducts.
WARNING
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.
Ventilation
Gdlls Or
into Adjoining Remove
Room, Door into
Option 1 Adioining
Room,
Option 3
ventilation Grills
Into Adjoining Room,
Option 2
Figure 4 - Ventilation Air from Inside Building Shown with Optional Mantel