3
Installation Instructions and Owner’s Manual
Unvented LP-Gas Vent Free Heaters
9. Operating heater above elevations of 4,500 feet
could cause pilot/ODS to shutdown heater.
10. Always run heater with control knob in a locked po-
sition. Never set control knob between locked posi-
tions. Poor combustion and higher levels of carbon
monoxide may result if control knob is left between
locked positions.
DANGER
: Carbon monoxide poisoning may lead to
death.
Carbon Monoxide Poisoning:
Early signs of carbon monoxide poisoning resemble the
fl u, with headaches, dizziness, or nausea. If you have
these signs, the heater may not be working properly.
Get fresh air at once! Have heater serviced. Some
people are more affected by carbon monoxide than oth-
ers. These include pregnant women, persons with heart
or lung disease or anemia, those under the infl uence of
alcohol, and those at high altitudes.
Propane/LP Gas:
Propane/LP gas is odorless. An odor making agent is
added to propane/LP gas. The odor helps you detect
a Propane/LP gas leak. However the odor added to
propane/LP gas may be present even though no odor
exists. Make certain you read and understand all warn-
ings. Keep this manual for reference. It is your guide to
safe and proper operation of this heater.
PRECAUTIONS:
1. MHVFG30LP may not be installed in a bedroom or
bathroom, or any place where a strong wind would
shut down the appliance.
2. This heater needs outside ventilation air to run
properly. The Oxygen Depletion Sensor (ODS)
safety shutoff system shuts down the heater if not
enough fresh air is available. See
Fresh Air for
Combustion and Ventilation
, pages 5 through 6.
3. Keep all air openings in heater clear, free of debris
or any blockage. This will insure that enough air for
proper combustion enters the heater.
4. If heater shuts off, do not relight until you provide
fresh, outside air. If heater keeps shutting off, it
requires servicing.
5. Turn off and unplug heater and let cool before
servicing. Only a qualifi ed service person should
service and repair heater.
6. Do not run heater:
•
Where fl ammable liquids or vapors are used or
stored
•
During dusty conditions.
7. 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.
8. Do not use heater if any part has been underwater.
Immediately call a qualifi ed service technician to
inspect the room heater and to replace any part of
the control system and any gas control which has
been underwater.
SPECIFICATIONS
MHVFG30LP
BTU (Available)
30,000
Type of Gas
LP-Gas Only
Ignition
Battery igniter (1-AA)
Pressure Regulator Setting
10 Inches of Water
Inlet Gas Pressure (Maximum)
14 Inches of Water
Inlet Gas Pressure (Minimum)
11 Inches of Water
Electrical Rating /Blower
120V, 60Hz , 1
Burners / Orifi ce nozzles
1
Thermostatic Control
Yes
Clearances: inches (mm)
Top
36” (915cm)
Sides
10” (254cm)
Floor (min to top of carpet)
3” (76cm)
Fabric / fl ammable objects
36” (915cm)
