Table of Contents
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READ INSTRUCTIONS CAREFULLY: YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS 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 PROPANE FIRED ROOM HEATER
MHVFRD20LPBT
(BLOWER INCLUDED)
MHVFRD20LPT
(BLOWER SOLD SEPARATE)
MHVFRD30LPBT
(BLOWER INCLUDED)
MHVFRD30LPT
(BLOWER SOLD SEPARATE)
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
• 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.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.
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.
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.
Unvented Liquid Propane Fired Room Heater
OPERATING INSTRUCTIONS
AND OWNER'S MANUAL
Plaque Heaters
MR. HEATER, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 · 800-251-0001
Blue Flame Heaters
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
1
Installation Instructions and Owner's Manual
Model #
MHVFRD20LPBT, MHVFRD20LPT
MHVFRD30LPBT, MHVFRD30LPT
MHVFBF20LPBT, MHVFBF20LPT
MHVFBF30LPBT, MHVFBF30LPT
MHVFBF20LPBT
(BLOWER INCLUDED)
MHVFBF20LPT
(BLOWER SOLD SEPARATE)
MHVFBF30LPBT
(BLOWER INCLUDED)
MHVFBF30LPT
(BLOWER SOLD SEPARATE)
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Table of Contents
Related Manuals for Mr. Heater MHVFBF30LPT
Summary of Contents for Mr. Heater MHVFBF30LPT
- Page 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 any other gas. MR. HEATER, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 · 800-251-0001 Unvented Liquid Propane Fired Room Heater...
- Page 2 SOCIAL MEDIA In order to provide the best service possible Mr. Heater is now giving you more ways to get in touch with us: WEBSITE: Mr. Heater’s full line of product are now at: www.mrheater.com FACEBOOK: Find us on Facebook TWITTER: Find us on twitter YouTube: There are now informational videos on Youtube.
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Page 3: Table Of Contents
36” (91.4cm) 36” (91.4cm) 36” (91.4cm) 36” (91.4cm) *Blower not included on the following units: MHVFRD20LPT, MHVFRD30LPT, MHVFBF20LPT, MHVFBF30LPT **Operating heater above elevations of 4,500 feet could cause pilot/ODS to shutdown heater.** CONTENTS 6. Do not run heater: WARNINGS ................2 SPECIFICATIONS ..............3... -
Page 4: Ignition System Battery Installation
PRODUCT FEATURES FRESH AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined Ignitor Button space or unusually tight construction unless provisions are Fan Blower Switch* provided for adequate combustion and ventilation air. Read Control Knob (located on back of the following instructions to insure proper fresh air for this heater) - Page 5 SPACE: hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation. Use this method to determine if you have a confined or unconfined space. VENTILATION AIR Note: the space includes the room in which you Ventilation from Inside Building install heater plus any adjoining rooms with doorless This fresh air would come from an adjoining unconfined...
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Page 6: Installation
appliance. *IMPORTANT: Do not provide openings for inlet or For convenience and efficiency, install the heater: outlet into attic. If attic has a thermostat-controlled power vent, heated air entering the attic will activate the power • Where there is easy access for operation, vent. -
Page 7: Fastening Heater To Wall
Attaching to Wall Stud: This way is the best providing the strongest mounting in wood frame houses. Attaching to Wall Anchor: 10”(25.4cm) 36”(91.4cm) from sides This way allows you to attach mounting bracket to hollow min from ceiling walls (wall areas between studs) or to solid walls (concrete or masonry). -
Page 8: Floor Mounting Away From Wall
2. Mark screws locations on wall. 3. Remove heater from mounting bracket. 4. If installing bottom mounting screw into hollow or solid wall, install wall anchors. Follow steps 1 Figure 8. through 4 under Attaching to Wall using Anchor. If installing bottom mounting screw into wall stud, 3. - Page 9 CAUTION: Never connect heater directly to the Propane CHECKING GAS CONNECTIONS supply. This heater requires an external regulator (not WARNING: Test all gas piping and connections for included). Install the external regulator between the leaks after installing or servicing. Correct all leaks at heater and Propane/LP supply.
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Page 10: Operating Your Heater
If any original wiring as supplied with the heater must be Open replaced, it must be replaced with type AWG 105 C wire or its equivalent except as indicated. WARNING: Electrical Grounding Instructions: This heater is equipped with a three-prong (grounding) plug for your protection against Equipment Closed shock hazard and should be plugged into a properly... - Page 11 The thermostatic control used simply turns on and off the burner. FOR MHVFBF20LPBT, MHVFBF20LPT, MHVFBF30LPBT, MHVFBF30LPT: The thermostatic control used modulates the flame size as the temperature gets closer to set point, then it turns off the burner upon reaching temperature.
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Page 12: Cleaning And Maintenance
CLEANING AND MAINTENANCE Pilot Air Inlet Hole WARNING: Turn off heater and let cool before servicing. For maintenance of the inside cabinet or to access the burner Pilot Assembly and pilot assembly for cleaning or service. Remove the four screws(two located on each side) that secure the front shell Figure 18 to the unit (Figure 6). -
Page 13: Troubleshooting
TROUBLESHOOTING NOTE: All troubleshooting items are listed in order of operation and likely occurrence. WARNING: Only a qualified service person should service and repair heater. CAUTION: Never use a wire needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Make sure grille guard is in place before running heater. - Page 14 OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY Burner orifice is clogged Clean burner orifice (see Cleaning and Maintenance on page 12), or replace burner orifice Burner does not light after Burner orifice diameter to small Replace burner orifice ODS/pilot is lit Inlet gas pressure is too low Contact local gas company Manifold pressure is too low Contact local gas company...
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Page 15: Warranty
Mr. Heater, Inc. warrants its heaters and accessories to be free from defects in material and workmanship for a period of 1 year from date of purchase. Mr. Heater, Inc. will repair or replace this product free of charge if it has been proven to be defective within the 1-year period, and is returned at customer expense with proof of purchase to Mr.