Safety information – Desa VF-24N-BTB User Manual
Page 4

www.desatech.com
111826-01G
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SAFETy INFORMATION
Continued
State of Massachusetts: The installa-
tion must be made by a licensed plumber
or gas fitter in the Commonwealth of
Massachusetts.
Sellers of unvented propane or natural
gas-fired supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.
You must operate this heater
with a fireplace doors or screen
in place and fully closed. Un-
less provided by other means,
screens shall have openings for
introduction of combustion air.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline and other flam-
mable vapors and liquids.
1. This appliance is only for use with the type of
gas indicated on the rating plate. This appliance
is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) in-
side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building
• immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions
• if you cannot reach your gas supplier, call
the fire department
4. This heater shall not be installed in a bedroom
or bathroom unless installed as a vented
appliance (see Installing Damper Clamp
Accessory for Vented Operation, page 11)
5. Before installing in a solid fuel burning fire-
place, the chimney flue and firebox must be
cleaned of soot, creosote, ashes and loose paint
by a qualified chimney cleaner. Creosote will
ignite if highly heated. A dirty chimney flue
may create an distribute soot within the house.
Inspect chimney flue for damage. If damaged,
repair flue before operating heater.
6. Do not burn solid fuel in a masonry or UL127
factory-built fireplace in which a vent-free
room heater is installed.
7. If fireplace has glass doors, never operate this
heater with glass doors closed. If you operate
heater with doors closed, heat buildup inside
fireplace will cause glass to burst. Make sure
there are no obstructions across openings of
fireplace.
8. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 19.
9. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
10. This heater needs fresh, outside air ventilation to
run properly. This heater has an oxygen deple-
tion sensing (ODS) pilot light safety system.
The ODS shuts down the heater if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 6. If heater keeps shutting
off, see Troubleshooting, page 20.
11. Do not run heater
• where flammable liquids or vapors are used
or stored
• under dusty conditions
12. Do not use this heater to cook food or burn
aper or other objects.
13. Do not use heater if any part has been exposed
to or under water. Immediately call a qualified
service technician to inspect the room heater
and to replace any part of the control system and
any gas control which has been under water.
14. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dime-
sized or larger).
15. Turn heater off and let cool before servicing or
repairing. Make sure the selector switch is in
the OFF position. Only a qualified service per-
son should install, service or repair heater.
16. Make sure selector switch is in the OFF posi-
tion when you are away from home for long
periods of time.
17. This heater does not need to be connected to
any external electrical source.
18. To prevent performance problems, do not
use propane/LP fuel tank of less than 100 lb.
capacity (propane/LP units only).
19. Provide adequate clearances around air
openings.