Mr. Heater MH18B Operating Manual
START SERIAL #MHC-748000205832
OPERATING INSTRUCTIONS
Model #
MH18B
AND OWNER’S MANUAL
READ INSTRUCTIONS CAREFULLY: 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.
PORTABLE PROPANE HEATER FOR
RECREATIONAL AND COMMERCIAL USE
For California Sale
WARNING:
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
— An LP cylinder not connected for use shall not be stored in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light appliance.
• Extinguish any open flame.
• Shut off gas to appliance.
— Service must be performed by a qualified service agency.
This is an unvented gas-fired portable heater. It uses air (oxygen) from the area in which it is
used. Adequate combustion and ventilation air must be provided. Refer to page 2.
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.
04/07 78438CAL Rev. AENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000
Mr. Heater | Big Buddy/Tough Buddy Operating Instructions and Owner’s Manual
2
WARNING:
Every time hose or tank is connected to unit, connection must be checked for leaks in one or more ways:
Apply soapy water to connection, look for bubbles,
listen for hiss of escaping gas, feel for extreme cold,
smell for rotten egg odor. Do not use if leaking!
WARNING:
Any changes to this heater or its controls can be
dangerous.
WARNING:
Early signs of carbon monoxide poisoning resemble the
flu, with headache, dizziness and/or nausea. If you
have these signs, heater may not be working properly.
Get fresh air at once! Have heater serviced.
WARNING:
If the recreational or commercial enclosure does not
have a window or roof vent, DO NOT USE THIS HEATER
INSIDE.
THE STATE OF CALIFORNIA REQUIRES THE
FOLLOWING WARNING:
WARNING:
Combustion by-products produced when using this
product contain carbon monoxide, a chemical known to
the State of California to cause cancer and birth defects
(or other reproductive harm).
CONTENTS
General Safety Instructions ............................................... 3
General Information ......................................................... 4
Operating with Disposable Propane Cylinders ................... 5
Operating With Hose Connected to Remote Cylinder ........ 6
Maintenance .................................................................... 7
Troubleshooting ............................................................... 7
Parts List .......................................................................... 8
Parts Ordering Information ............................................. 10
Service Information ........................................................ 10
SPECIFICATIONS
MODEL NO. ................................................ MH18B
GAS TYPE ............................................. PROPANE
INPUT BTU/HR..................... 4,000 / 9,000 /18,000
CLEARANCE TO COMBUSTIBLES
T O P .................................................................... 30”
FRONT............................................................... 24”
SIDES....................................................................6”
REAR.....................................................................0”
Caution: Some carpets or linoleum surfaces may discolor if
heater is placed directly on these floor coverings.
GENERAL SAFETY INSTRUCTIONS
THIS IS A HEATING APPLIANCE. DO NOT OPERATE
THIS APPLIANCE WITHOUT THE FRONT WIRE
GUARD INSTALLED
• Due to high temperatures, the appliance should be
located out of traffic and away from combustible
materials.
• Children and adults should be alerted to the hazard
of high surface temperatures and should stay away
to avoid burns or clothing ignition.
• Young children should be carefully supervised when
they are near the appliance.
• Do not place clothing or other flammable material on
or near the appliance.
• Do not operate heater in any moving vehicle.
• This heater can only be used in a recreational or
commercial enclosure with a window or roof vent. It
may also be used outdoors.
• This heater requires a vent area of 18 square inches
(example 4 1/4” x 4 1/4” opening) minimum for adequate ventilation during operation. Do not use other
fuel burning appliances inside.
• GAS PRESSURE AT HEATER IS REGULATED
AND FIXED AT 11” W.C. WHEN USING A REMOTE
HOSE CONNECTION TO HEATER TANK SWIVEL(S), DO
NOT REGULATE OR REDUCE PROPANE TANK SUPPLY
PRESSURE TO HEATER.
• WARNING: ANY HOSE CONNECTION TO A
QUICK DISCONNECT FITTING ON HEATER
MUST BE REGULATED TO 11” W.C. PRESSURE
• REGULATOR IN HEATER MUST ALWAYS BE IN PLACE
DURING OPERATION.
Operating Instructions and Owner’s ManualMr. Heater | Big Buddy/Tough Buddy
3
04/07 78438CAL Rev. A
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