Owner`s manual

9
Installation in a tightly constructed home and/
or installation at high altitudes may cause your
vent-free gas log set to produce excessive heat or
excessive moisture. The oxygen depletion sensor
may shut down the log set. These conditions may be
corrected by opening a window or otherwise increasing
the number of air changes in the home.
The Peterson Real-Fyre
®
vent-free gas log set has
been certifi ed to function safely and reliably with
emission by-products well within accepted safety and
health standards. Your specifi c medical or physical
condition may render you more sensitive to products
created by burning natural or propane gas. If this is
the case, you should open a window or otherwise
increase ventilation.
REMEMBER
L X W X H X 20 = MAXIMUM BTUs ALLOWED
If the space is smaller than the above formula
allows, and/or smaller than the examples and
diagrams on this page specify, DO NOT install
the vent-free gas log set unless provisions for
additional combustion and ventilation air are made.
IT MAY BE NECESSARY TO OPEN A WINDOW SLIGHTLY (1
"
- 2
"
) OR OTHERWISE INCREASE
VENTILATION. Conditions requiring this include, but are not limited to:
1. Installation in a confi ned space.
2. Installation in a tightly constructed home.
3. Installation at high altitudes.
4. Certain medical or physical conditions of the homeowner that may be adversely impacted by combustion
products created by burning natural or propane gas.
Your vent-free gas log set SHALL NOT BE INSTALLED IN A CONFINED SPACE or unusually tight
construction unless provisions are made for adequate combustion and ventilation air.
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defi nes a confi ned space as a space whose volume is
less than 50 cu. ft.
per 1,000 BTU per hour (4.8 meters
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 unconfi ned space.
An unconfi ned space is a space where volume is at least 50 cu. ft.
per 1,000 BTU per hour (4.8 meters
3
per kw) of
the aggregate input rating of all appliances 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 space.
WARNING: Do not install the unvented burner system where the room is considered a confi ned space (see Fig.
9-1).
To determine if the area where this gas log set is to be installed fi ts the defi nition of an unconfi ned space, multiply
the length of the room by the width of the room by the height of the room, then multiply by 20. The result is the
maximum BTU allowed.
(Length x Width x Height x 20 = Maximum BTUs allowed)
Example: To install a Peterson Real-Fyre
®
24
"
vent-
free gas log set with 39,000 BTU (nat. gas) in a space
with no other gas-burning appliances, the space
MUST be 1,950 cu. ft. or larger (assuming an 8' ceiling,
space dimensions must be a minimum of 243.75 sq.
ft., i.e.; 16.3' x 15', etc.) (see Fig. 9-1).
VENTILATION AND CONFINED SPACE SAFETY INFORMATION
Fig. 9-1
H
W
L
L X W X H X 20 = Maximum BTU allowed
WARNING
If the area in which the heater may be operated is
smaller than that defi ned as an unconfi ned space
or if the building is of unusually tight construction,
provide adequate combustion and ventilation air
by one of the methods described in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation, or applicable local
codes.