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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 GAS FIRED GARAGE HEATER
MHVFGH30LPBT
(BLOWER INCLUDED)
MHVFGH30LPT
(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.
CAUTION: If you install the heater in a home garage: Heater pilot and burner must be at least
18 inches above floor. Locate heater where moving vehicle will not come in contact.
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
30,000 BTU Blue Flame Heaters
MR. HEATER, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 · 800-251-0001
1
Installation Instructions and Owner's Manual
Model #
MHVFGH30LPT
MHVFGH30LPBT
INSTALLER: Leave this
manual with the appliance.
CONSUMER: Retain this
manual for future reference.
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Summary of Contents for Mr. Heater MHVFGH30LPT
- 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...
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Page 2: Table Of Contents
CONTENTS SOCIAL MEDIA WARNINGS ................2 In order to provide the best service possible Mr. Heater is now giving you more ways to get in touch with us: SPECIFICATIONS .................3 WEBSITE: Mr. Heater’s full line of product are now at: PRECAUTIONS ................3... -
Page 3: Specifications
3” (76.2 cm) Fabric / flammable objects 36” (91.4 cm) *Blower not included on the following units: MHVFGH30LPT **Operating heater above elevations of 4,500 feet could cause pilot/ODS to shutdown heater.** PRECAUTIONS: DANGER: Carbon monoxide poisoning may lead to death. -
Page 4: Ignition System Battery Installation
SAFETY DEVICE This heater must not be installed in a confined space or unusually tight construction unless provisions are This heater has a pilot with an Oxygen Depletion Sensor provided for adequate combustion and ventilation air. The (ODS) safety shut off system. The ODS/pilot shuts off the information on pages 4 and 5 will help you classify your heater if there is not enough fresh air. - Page 5 51.8 or 51,800 (maximum Btu/hr the space WARNING: Rework worksheet, adding the space of can support) the adjoining unconfined space. The combined space must have enough fresh air to supply all appliance in WARNING: This heater shall not be installed in a both spaces.
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Page 6: Installation
WARNING: Never install the heater: WARNING: A qualified service person must install • In a bedroom (the MHVFGH30LPT or the heater. Follow all local codes. MHVFGH30LPBT) CHECK GAS TYPE •... - Page 7 See clearance specs on Pg 3 Mounting 16” (Lg) Bracket 12-9/64” (Sm) Figure 5 18” Min. Mark mounting hole locations and drill holes where indicated. Removing Front Panel of Heater Allow for minimum clearances Remove (4) screws total there are (2) screws on either side of the heater.
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Page 8: Floor Mounting Away From Wall
2. Place heater onto mounting bracket. Slide FLOOR MOUNTING AWAY FROM WALL: horizontal slots onto stand-out tabs on mounting Installing Support Feet (See figure 11.) bracket. Lay heater onto table on its back with bottom edge overhanging table edge. 2. Securely attach feet to bottom of heater using 2 – Horizontal Slots self-tapping screws each. -
Page 9: Connecting To Gas Supply
CONNECTING TO GAS SUPPLY WARNING: A qualified service person must connect HEATER CABINET heater to gas supply. Follow all local codes. 3/8” NPT Pipe Nipple Pressure WARNING: This appliance requires a 3/8” NPT Regulator (National Pipe Thread) inlet connection to the pressure Ground Joint Union regulator. -
Page 10: Operating Your Heater
piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping MOTOR system at test pressures equal to or less than ½ psi (3.5 SWITCH, TEMP OPERATION kPa). (see figure 13). 2. Pressurize supply piping system by either using SWITCH, compressed air or opening propane/LP supply valve. - Page 11 1. STOP! Read the all safety information included with and TO TURN OFF GAS TO APPLIANCE on the side of heater. SHUTTING OFF HEATER: 2. Check that gas supply to heater is on. Turn off equipment shutoff valve. 3. Push in gas control knob and slightly turn clockwise to the 2.
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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 11), 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: Parts List And Diagram
PARTS LIST AND DIAGRAM MODEL: MHVFGH30LPT, MHVFGH30LPBT ITEM PART DESCRIPTION ITEM PART DESCRIPTION 80123 Wire Guard 80014 Igniter Wire 80116 Front Panel 80019 Igniter Module 80025 Reflector 80011 Igniter Module Mounting Bracket Thermostat Valve Mounting 80029 Front Heat Shield 80010... -
Page 16: 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.