Enerco MH9B User Manual
OPERATING INSTRUCTIONS
Model #
AND OWNER’S MANUAL
MH9B
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
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 appli-
ance.
— 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 3.
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.
04/03 Revision L1 #73432MR. HEATER INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-881-5500PRINTED IN U.S.A.
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 ........................................................ 3
Operating with Disposable Propane Cylinders .................. 4
Operating With Hose Connected to Remote Cylinder ....... 4
Maintenance ................................................................... 5
Troubleshooting ............................................................... 6
Parts List ......................................................................... 6
Parts Ordering Information .............................................. 8
Service Information ......................................................... 8
SPECIFICATIONS
MODEL NO. ..................................................... MH9B
GAS TYPE .................................................... PROPANE
INPUT BTU/HR. ..................................... 4,000 / 9,000
CLEARANCE TO COMBUSTIBLES
TOP ...................................................................... 30”
FRONT .................................................................. 24”
SIDES ..................................................................... 6”
REAR ...................................................................... 0”
Mr. Heater | Portable Buddy Operating Instructions and Owner’s Manual
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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. This
heater is not for outdoor use.
• This heater requires a vent area of 9 square inches
(example 3” x 3” opening) minimum for adequate
ventilation during operation. Do not use other burning
appliances inside.
• GAS PRESSURE AT HEATER IS REGULATED AND FIXED
AT 11” W.C. WHEN USING A REMOTE HOSE CONNECTION DO NOT REGULATE OR REDUCE PROPANE TANK
SUPPLY PRESSURE TO HEATER!
• REGULATOR IN HEATER MUST ALWAYS BE IN PLACE
DURING OPERATION.
• Any safety screen or guard removed for servicing the
appliance must be replaced prior to operating the
heater.
• The appliance should be inspected before each use.
Frequent cleaning may be required. The control compartments, burner and circulating air passageways of
the appliance must be kept clean, see MAINTENANCE.
• DO NOT use this heater if any part has been under
water. Immediately call a qualified service technician to
inspect the heater and to replace any part of the control
system and any gas control, which has been under
water.
• When used without adequate combustion and ventila-
tion air, this heater may give off excessive CARBON
MONOXIDE, an odorless, poisonous gas.
• Some people - pregnant women, persons with heart or
lung disease, anemia, those under the influence of
alcohol, those at high altitudes - are more affected by
carbon monoxide than others.
• When heater is placed on the ground, make sure the
ground is level and keep any objects at least 24 inches
from the front of the heater. THIS HEATER IS EQUIPPED
WITH A TIP OVER SWITCH THAT WILL SHUT THE
HEATER OFF IF THE HEATER TIPS OVER HOWEVER, DO
NOT LEAVE HEATER UNATTENDED OR WHERE CHILDREN MAY CAUSE THE HEATER TO TIP OVER. NEVER
OPERATE THE HEATER WHILE SLEEPING!
GENERAL INFORMATION:
• This heater is safe for indoor use in small recreational
enclosures, having means for providing combustion air
and ventilation, such as enclosed porches, cabins,
fishing huts, trailers, tent trailers, tents, truck caps and
vans. It may be used for emergency indoor heating
when connected to a disposable 1-lb. propane cylinder
and for indoor use in commercial enclosures, having
means for providing combustion air and ventilation,
such as construction trailers or temporary work enclosures.
• When the heater is cold or at room temperature, it will
take a few minutes for the burner tile to turn bright
orange. This is normal and the heater is working
properly. If burner tile is visibly flaming, turn heater off
and call a qualified service technician.
• When the unit is lit, there should be about a quarter
inch border around the tile that will not turn bright
orange. This is normal.
• When operating the heater for the first time, the top
area of the reflector may discolor. This is also normal
and is no reason for concern.
• When operating the heater at altitudes over 7,000 FT.
above sea level, the unit may not burn as bright as in
lower altitudes. This is normal. At higher altitudes, the
heater may shut-off. If this happens, provide fresh air,
wait 5 minutes and re-light.
• Operating time will vary depending on the heater
setting and the supply cylinder size. 3 to 6 hours on a 1
lb. cylinder. 48 to 110 hours on a 20 lb. cylinder (based
on “HI” and “LO” settings).
• When moving heater when lit or bumping heater
setting it down, tip over switch may shut off heater. If
this happens, re-light.
Operating Instructions and Owner’s ManualMr. Heater | Por table Buddy
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