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6
This heater shall not be installed in a confined space or unusually tight construction unless provisions are
provided for adequate combustion and ventilation 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
of 1 perm (6 x 10 kg per pa-sec-m²) or less with openings gasketed or sealed, and
(b) Weather stripping has been added on openable 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.
The National Fuel Gas Code defines a confined space as a space whose volume is less than 50 cubic
feet per 1,000 BTU per hour (4.8m per kw) of the aggregate input rating of all appliances installed in that
space and an unconfined space is defined as a space whose volume is not less than 50 cubic feet per
1,000 BTU per hour (4.8m 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.
ADEQUATE COMBUSTION AND VENTILATION AIRADEQUATE COMBUSTION AND VENTILATION AIR
ADEQUATE COMBUSTION AND VENTILATION AIRADEQUATE COMBUSTION AND VENTILATION AIR
ADEQUATE COMBUSTION AND VENTILATION AIR
ITEMS REQITEMS REQ
ITEMS REQITEMS REQ
ITEMS REQ
UIRED FOR INSTUIRED FOR INST
UIRED FOR INSTUIRED FOR INST
UIRED FOR INST
ALLAALLA
ALLAALLA
ALLA
TIONTION
TIONTION
TION
ITEMS REQUIRED FOR INSTALLATIONITEMS REQUIRED FOR INSTALLATION
ITEMS REQUIRED FOR INSTALLATIONITEMS REQUIRED FOR INSTALLATION
ITEMS REQUIRED FOR INSTALLATION
Ensure that the following items are available before proceeding with installation:
• External regulator (for propane/LPG only) • Manual shutoff valve
• Piping which complies with local codes • Sediment trap
• Pipe sealant approved for use with • Pipe wrench
propane/LPG (resistant to sulfur compounds)
CODESCODES
CODESCODES
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.American National Standards Institute, Inc.
American National Standards Institute, Inc.American National Standards Institute, Inc.
American National Standards Institute, Inc.
National Fire Protection Association, Inc.National Fire Protection Association, Inc.
National Fire Protection Association, Inc.National Fire Protection Association, Inc.
National Fire Protection Association, Inc.
1430 Broadway or Batterymarch Park
New York, NY 10018 Quincy, MA 02269
WW
WW
W
ARNINGARNING
ARNINGARNING
ARNING
3
Due to high temperatures, do not install the heater:Due to high temperatures, do not install the heater:
Due to high temperatures, do not install the heater:Due to high temperatures, do not install the heater:
Due to high temperatures, do not install the heater:
• Where curtains, furniture, clothing or other flammable objects are less than 42"• Where curtains, furniture, clothing or other flammable objects are less than 42"
• Where curtains, furniture, clothing or other flammable objects are less than 42"• Where curtains, furniture, clothing or other flammable objects are less than 42"
• Where curtains, furniture, clothing or other flammable objects are less than 42"
from the front of the heater. from the front of the heater.
from the front of the heater. from the front of the heater.
from the front of the heater.
• In high traffic areas.• In high traffic areas.
• In high traffic areas.• In high traffic areas.
• In high traffic areas.
• In windy or drafty areas.• In windy or drafty areas.
• In windy or drafty areas.• In windy or drafty areas.
• In windy or drafty areas.
DO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THEDO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THE
DO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THEDO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THE
DO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THE
APPLIANCE.APPLIANCE.
APPLIANCE.APPLIANCE.
APPLIANCE.