Desa VML27NR - Manual (Page 4)

111115-01D
4
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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
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 win-
dows and doors and
AIR FOR COMBUSTION AND
VENTILATION
Today’s homes are built more energy efficient than ever. New
materials, 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, 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 insure proper venting of vented
fuel-burning appliances.
WARNING: This heater 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.
UNPACKING
PRODUCT FEATURES
OPERATION
This heater is clean burning. It requires no outside venting. There is
no heat loss out a vent or up a chimney. Heat is generated by realistic,
dancing yellow flames. This heater is designed for vent-free opera-
tion with flue damper closed. It has been tested and approved to
ANSI Z21.11.2 standard for unvented heaters. State and local codes
in some areas prohibit the use of vent-free heaters. This heater may
also be operated as a vented decorative product (ANSI Z21.60) by
opening flue damper (non-thermostat operation only).
APPLICATION
These multisided logs are designed to be equally beautiful when
viewed from any angle. They are designed specifically for use in
see-through, peninsula, and island fireboxes with multiple open-
ings. You may also install this log heater in a standard firebox.
SAFETY PILOT
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.
REMOTE CONTROL
ACCESSORIES
There are four optional remote controls that can be purchased
separately for this log heater:
• wall switch
• wall thermostat
• hand-held ON/OFF remote
• hand-held thermostat remote
See Accessories, page 27.
NOTE: The wall thermostat or hand-held thermostat may not be
used where vented decorative listing is required.
CAUTION: Do not remove the data plates from the
grate assembly. The data plates contain important
warranty and safety information.
1. Remove logs and heater base assembly from carton. Note: Do
not pick up heater base assembly by the burner. This could
damage heater. Always handle base assembly by grate.
2. Remove all protective packaging applied to logs and heater
for shipment.
3. Check all items for any shipping damage. If damaged, promptly
inform dealer where you bought heater.
UNPACKING
PRODUCT FEATURES
REMOTE CONTROL ACCESSORIES
AIR FOR COMBUSTION AND VENTILATION
Providing Adequate Ventilation