PRODUCT FEATURES
Safety device
This heater has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff system.
The ODS/pilot is a required feature for vent-
free room heaters. The ODS/pilot shuts off the
heater if there is not enough fresh air.
Piezo ignition system
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
AIR FOR COMBUSTION AND VENTILATION
Today’s home are built more energy efficient
than ever. New materials, increased insula-
tion, 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 combus-
tion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and
fuel burning appliances draw air from the
house to operate. You must provide adequate
fresh air for these appliances. This will ensure
proper venting of vented fuel-burning appli-
ances.
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 classification:
1. Unusually Tight Contruction
2. Unconfined Space
3. Confined Space
The information on page 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 of one perm
(6x10
-11
Kg per pa-sec-m
2
) 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 sole plates and floors, between
wall panels, at penetrations for plumbing,
electrical, and gas lines, and at other
openings.
If your home meets all of three criteria above,
you must provide additional fresh air. See
Ventilation Air From Outdoors, page 6
If you home does not meet all of the three cri-
teria above, proceed to Determining Fresh-Air
Flow For Heater Location, page 5
4
WARNING: This heater shall not be installed
in a confined space or unusually tight con-
struction unless provisions are provided for
adequate combustion and ventilation. Read
the following instructions to ensure proper
fresh air for this and other fuel-burning
appliances in your home.
WIR 2 26-06-2003 18:21 Pagina 4