Product Features; Locating Firebox; Air For Combustion And Ventilation - Comfort Glow CGFB32CA Circulating Louvered Safety Information And Installation Manual

PRODUCT FEATURES

4
Operation
Blower Accessory

LOCATING FIREBOX

AIR FOR COMBUSTION AND VENTILATION

Providing Adequate Ventilation
PRODUCT FEATURES
OPERATION
This firebox is designed to accept unvented decorative gas logs. It
requires no outside venting or chimney making installation easy and
inexpensive. When used without the blower the firebox requires no
electricity making it ideal for emergency backup heat.
BLOWER ACCESSORY
The CGFB32CA firebox will accept the GA3750 accessory. The
variable blower allows you to select the fan speed you desire. The
blower circulates heated air from the firebox into the room. Use of
blower is optional.
LOCATING FIREBOX
Plan where you will install the firebox. This will save time and
money later when you install the firebox. Before installation,
consider the following:
1. Where the firebox will be located. Allow for wall and ceiling
clearances (see Installation Clearances, page 6).
2. Everything needed to complete installation.
3. These models CANNOT be installed in a bedroom or bathroom.
4. Proper air for combustion and ventilation (see below).
AIR FOR COMBUSTION AND
VENTILATION
WARNING: This firebox shall not be installed in a
confined space or unusually tight construction un-
less provisions are provided for adequate combus-
tion and ventilation air. Read the following instruc-
tions to insure proper fresh air for this and other fuel-
burning appliances in your home.
Today's homes are built more energy efficient than ever. New materi-
als, increased insulation, and new construction methods help reduce
heat loss in homes. Home owners weather strip and caulk around
windows and doors to keep the cold air out and the warm air in. During
heating months, home owners want their homes as airtight as possible.
While it is good to make your home energy efficient, your home
needs to breathe. Fresh air must enter your home. All fuel-burning
appliances need fresh air for proper combustion and ventilation.
Exhaust fans, fireboxes, clothes dryers, and fuel burning appliances
draw air from the house to operate. You must provide adequate fresh
air for these appliances. This will insure proper venting of vented
fuel-burning appliances.
For more information, visit www.desatech.com
For more information, visit www.desatech.com
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel Gas Code ANSI
Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation
classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 will help you classify your
space and provide adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough
fresh air for combustion and ventilation. However, in buildings of
unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction
where:
a. walls and ceilings exposed to the outside atmosphere
have a continuous water vapor retarder with a rating
-11
of one perm (6x10
openings gasketed or sealed and
b. weather stripping has been added on openable win-
dows and doors and
c. caulking or sealants are applied to areas such as
joints around window and door frames, between sole
plates and floors, between wall-ceiling joints, between
wall panels, at penetrations for plumbing, electrical,
and gas lines, and at other openings.
If your home meets all of the three criteria above, you
must provide additional fresh air. See Ventilation Air
From Outdoors, page 6.
If your home does not meet all of the three criteria above,
proceed to Determining Fresh-Air Flow For Firebox Loca-
tion , page 5.
Confined Space and Unconfined Space
The National Fuel Gas Code ANSI Z223.1/NFPA 54 defines a
confined space as a space whose volume is less than 50 cubic feet
per 1,000 Btu per hour (4.8 m
of all appliances installed in that space and an unconfined space as
a space whose volume is not less than 50 cubic feet per 1,000 Btu per
hour (4.8 m 3 per kw) of the aggregate input rating of all appliances
installed in that space. Rooms communicating directly with the
space in which the appliances are installed*, through openings not
furnished with doors, are considered a part of the unconfined space.
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
2
kg per pa-sec-m ) or less with
3
per kw) of the aggregate input rating
107331-01E