Mr. Heater MHVFG30LP Owner's Manual
Installer: Leave this manual with the appliance. Consumer: Retain this manual for future reference.
INSTALLATION INSTRUCTIONS
AND OWNER’S MANUAL
MODEL
MHVFG30LP
READ INSTRUCTIONS C AREFULLY: Read and follow all instructions. Place
instructions in a safe place for future reference. Do not allow anyone who has not
read these instructions to assemble, light, adjust or operate the heater.
UNVENTED LP GAS FIRED GARAGE HEATER
30,000 BTU Blue Flame Heaters
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing
property damage, personal injury, or loss of life.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Shut off gas supply
• Do not try to light any appliance
• Do not touch an 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.
- Installation and service must be performed by a qualified installer, service agency, or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed.
Provisions for adequate combustion and ventilation air must be provided. Refer to Fresh Air for Combustion
and Ventilation section on page 4 of this manual.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property
damage. Refer to this manual for correct installation and operational procedures. For assistance or additional
information consult a qualified installer, service agency, or gas supplier.
MR. HEATER, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 · 216-916-3000
70596 Rev.G 07/11
This appliance may be installed in an aftermarket* permanently manufactured (mobile) home, where not prohibited
by local codes. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not
convertible for use with any other gas.
*Aftermarket completion of sale, not for the purpose of resale, from the manufacturer.
WARNINGS
IMPORTANT: Read this owner’s manual carefully
and completely before trying to assemble, operate,
or service this heater. Improper use of this heater
can cause serious injury or death from burns, fire,
explosion, electrical shock, and carbon monoxide
poisoning.
WARNING: This appliance is equipped for (natural
or propane) gas. Field conversion is not permitted.
WARNING: Do not use any accessory not approved for use with this heater.
WARNING: Any change to this heater or its controls can be dangerous.
• Do not place clothing or other flammable
material on or near the appliance. Never place
any objects on the heater.
• Due to high temperatures, heater should be
kept out of traffic and away from furniture and
draperies.
• Surface of heater becomes very hot when
running. Keep children and adults away from
hot surfaces to avoid burns or clothing ignition. Heater will remain hot for a time after
shutdown. Allow heater surfaces to cool before
handling.
• Young children should be carefully supervised
when they are in the same room with heater.
• Make sure grille guard is in place before running heater. If screen or grille guard is removed
for servicing it must be replaced prior to operating the heater.
• Keep the appliance area clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.
CONTENTS
WARNINGS ........................................................................2
SPECIFICATIONS .................................................................3
PRECAUTIONS ....................................................................3
DETERMINING THE TYPE OF HEATER LOCATION SPACE .....5
INSTALLATION ...................................................................6
FASTENING HEATER TO WALL ............................................7
CONNECTING TO GAS SUPPLY ........................................... 8
OPERATING YOUR HEATER ............................................... 10
CLEANING AND MAINTENANCE .......................................11
TROUBLESHOOTING ........................................................ 13
EXPLODED-VIEW PARTS DRAWING ................................... 15
PARTS LIST ....................................................................... 15
WARRANTY .................................................................... 16
CAUTION: Never connect heater directly to the
Propane supply. This heater requires an external
regulator (not supplied). Install the external regulator between the heater and Propane/LP supply.
The installer must supply an external regulator.
The external regulator will reduce the incoming
gas pressure to between 11 and 14 inches of
water. If you do not reduce incoming gas pressure heater regulator damage could occur. Install
external regulator with the vent pointing down.
Pointing the vent down protects it from freezing
rain or sleet.
Unvented LP-Gas Vent Free Room Heaters
Installation Instructions and Owner’s Manual
2
SPECIFICATIONS
BTU (Available)
Type of Gas
Ignition
Pressure Regulator Setting
Inlet Gas Pressure (Maximum)
Inlet Gas Pressure (Minimum)
Electrical Rating
Burners / Orifice nozzles
Thermostatic Control
Clearances: inches (mm)
Top
Sides
Floor (min. to top of carpet)
Fabric / flammable objects
30,000
10 Inches of Water
14 Inches of Water
11 Inches of Water
/Blower
1
Yes
MHVFG30TBLP
LP-Gas Only
Battery ignitor (1-AA)
120V, 60Hz , 1
36” (915 cm)
10.5” (267 cm)
2” (51 cm)
36” (915 cm)
PRECAUTIONS:
1. The MHVFG30TBLP heaters 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 qualified service person should
service and repair heater.
6. Do not run heater:
• Where flammable 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 qualified service technician to
inspect the room heater and to replace any part of
the control system and any gas control which has
been underwater.
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 position. Never set control knob between locked positions. 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
flu, 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 others. These include pregnant women, persons with heart
or lung disease or anemia, those under the influence of
alcohol, and those at high altitudes.
Propane/LP Gas:
Propoane/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 warnings. Keep this manual for reference. It is your guide to
safe and proper operation of this heater.
Unvented LP-Gas Vent Free Room Heaters
Installation Instructions and Owner’s Manual
3
Product Features
FRESH AIR FOR COMBUSTION AND
Fan Blower
Switch
(located on back
of heater)
Burners
Grill
Front Panel
Ignitor Button
Control Knob
Heater
Cabinet
Figure 1
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensor (ODS) safety shut off system. The ODS/pilot shuts
off the heater if there is not enough fresh air.
IGNITION SYSTEM
– The heater is equipped with an electronic manual ignitor. This system requires no matches, or other source
to light heater, but does require one AA battery to operate ignitor. (AA Battery included).
To install or replace battery unscrew the ignitor cap
(red button), insert battery positive (+) terminal up
and replace cap.
(AA Battery included)
WARNING: If the area in which the heater may be
operated does not meet the required volume for
indoor combustion air, combustion and ventilation
air shall be provided by one of the methods
described in the National Fuel Gas Code, ANSI
Z223.1.NFPA 54, the International Fuel Gas
Code, or applicable Local Codes.
This heater shall not be installed in a room or space
unless the required volume of indoor combustion air
is provided by the method described in the National
Fuel Gas Code, ANSIZ223.1.NFPA 54, the International Fuel Gas Code, or applicable local codes.
THERMOSTATIC CONTROL
These heaters have a control valve with a thermostat
sensing bulb. This results in the greatest heater comfort
and may result in lower bills.
These heaters also include an electrical blower. The
blower switch has three positions: MANUAL, OFF and
AUTO. In AUTO, the blower will turn on and off as the
heater cycles on and off. On MANUAL, the blower will run
continuously. To turn blower off, use the OFF position.
LOCAL CODES
Install and use heater with care.
Installation must conform to local codes or in the absences of local codes, use the latest edition of National
Fuel Gas Code ANSI Z223.1/NFPA 54 or the International
Fuel Gas Code..
UNPACKING
1. Remove heater from carton.
2. Remove all protective packaging applied to
heater for shipment.
3. Check heater for any shipping damage. If
heater is damaged, promptly inform dealer
where you bought heater.
Unvented LP-Gas Vent Free Room Heaters
Installation Instructions and Owner’s Manual
4
VENTILATION AIR
Ventilation from Inside Building
This fresh air would come from an adjoining unconfined
space. When ventilation to an adjoining unconfined
space, you must provide two permanent openings: one
within 12” of the ceiling and one within 12” of the floor
on the wall connecting the two spaces (see options 1
& 2 of fig. 2). You can also remove door into adjoin-
ing room (see option3, fig 2). Follow the National Fuel
Gas Code NFPA 54/ ANSI Z223.1, the International
Fuel Gas Code or applicable local codes, Air for
Combustion and Ventilation for required size of ventilation grills or ducts.
12”
Ventilation from Outdoors
If necessary provide extra fresh air by using ventilation grills or ducts. Connect these items directly to the
outdoors or spaces open to the outdoors. These include
attics* and crawl spaces. Follow the National Fuel Gas
Code NFPA 54/ ANSI Z223.1, the International Fuel
Gas Code or applicable local codes, Air for Com-
bustion and Ventilation for required size of ventilation
grills or ducts.
*IMPORTANT: Do not provide openings for inlet or
outlet into attic. If attic has a thermostat-controlled
power vent, heated air entering the attic will activate
the power vent.
IMPORTANT: Vent-free heaters add moisture to
the air. Although this is beneficial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Fresh
Air for Combustion and Ventilation, page 5.
Ventilation
Grills into
Adjoining
Room Option 1
OUTLET AIR
OUTLET
AIR
INLET
AIR
Or remove
door into
Adjoining
Room Option 3
Ventilation Grills into
Adjoining Room - Option 2
12”
Figure 2.
VENTILATION AIR
VENTILATED
ATTIC
TO ATTIC
TO CRAWL
SPACE
VENTILATION CRAWL SPACE
Figure 3.
Unvented LP-Gas Vent Free Room Heaters
Installation Instructions and Owner’s Manual
5
Loading...