ROOM VOLUME for VENT FREE
7
H Series
Vent Free Fireplace Rev #12042020 European
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CODES
Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which can
be obtained from…
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
or
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
ADEQUATE COMBUSTION AND VENTILATION AIR
This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate
combustion and ventilation air. The pilot assembly is equipped with an Oxygen Depletion Senor (ODS) which measures the oxygen
in the room.
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
3
per kw) of the aggregate input rating of all appliances installed in that space. An
unconfined
space is
defined 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.
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 of 1 perm (6 x 1011
kg per pa-sec-m
2
) or less with openings gasketed or sealed;
b) weather stripping has been added on operable windows 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.
This appliance is equipped for natural gas. Field conversion is not permitted.
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This heater shall not be installed in a room or space unless the required volume
of indoor combustion air is provided by the method described in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code, or
applicable local codes.
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