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Air for combustion and ventilation, Installation – Desa Tech FIREBOX CGFB32CC User Manual

Page 8

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124970-01A

8

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 3). You can also remove door

into adjoining room (see option 3, Figure 2).

Follow the National Fuel Gas Code, ANSI

Z223.1/NFPA 54, Air for Combustion and

Ventilation for required size of ventilation

grills or ducts.

AIR FOR COMBUSTION AND VENTILATION

Continued

Figure 3 - Ventilation Air from Outdoors

Figure 2 - Ventilation Air from Inside

Building

ventilation Air From outdoors

Provide extra fresh air by using ventilation

grills or ducts. You must provide two perma-

nent openings: one within 12" of the ceiling

and one within 12" 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.
IMPORTANT: Do not provide openings for

inlet or outlet air into attic if attic has a thermo-

stat-controlled power vent. Heated air entering

the attic will activate the power vent.

INSTALLATION

Or

Remove

Door into

Adjoining

Room,

Option

3

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills

Into Adjoining

Room,

Option 1

12"

12"

Outlet

Air

Ventilated

Attic

Outlet

Air

Inlet

Air

Inlet Air

Ventilated

Crawl Space

To

Crawl

Space

To Attic

warninG: a qualified ser-

vice person must install firebox.

follow all local codes.

WARNING: Never install the

firebox

• in a bedroom or bathroom*

• in a recreational vehicle

• where curtains, furniture, cloth-

ing or other flammable objects

are less than 42" from the front,

top or sides of the firebox

• in high traffic areas

• in windy or drafty areas

* unless the installed log set is

rated at 10,000 btu/hr or less

in a bedroom or 6,000 Btu/Hr

or less in a bathroom.

Caution: log heaters

installed in this firebox create

warm air currents. these cur-

rents move heat to wall surfaces

next to firebox. installing firebox

next to vinyl or cloth wall cover-

ings or operating firebox where

impurities (such as, but not

limited to, tobacco smoke, aro-

matic candles, cleaning fluids,

oil or kerosene lamps, etc.) in

the air exist, may discolor walls

or cause odors.