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Operating Instructions and Owner’s Manual

Mr. Heater | Portable Big Buddy Radiant Heater

Specifications

Model No.

MH18B

Gas Type

Propane (LP)

Input (Btu/Hr)

4,000/9,000/

18,000

Clearance To Combustibles

Top

30”

Front

24”

Sides

6”

Rear

0”

Permissible Settings

Bathroom Use

“LO” Only

Bedroom Use

“LO” or “MED”

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

ODOR FADE WARNING

WARNING:

 

ASPHYXIATION HAZARD

• 

Do not use in unventilated 
areas.

• 

The flow of combustion and 
ventilation air must not be 
obstructed.

• 

Proper ventilation air must 
be provided to support the 
combustion air requirements 
of the heater being used.

• 

Refer to the specification 

section of the heater’s  

 

manual, heater dataplate, or 
contact the factory  

 

to  determine combustion air 
ventilation requirements of 
the heater.

• 

Lack of proper ventilation 
air will lead to improper 
combustion.

• 

Improper combustion can 
lead to carbon monoxide 
poisoning leading to serious 
injury or death. Symptoms of 
carbon monoxide poisoning 
can include headaches, 
dizziness and difficulty in 
breathing.

SAFETY INSTR

UCTIONS

Caution:

• 

When operating the heater at 
altitudes over 7,000 FT above 
sea level the heater may shut 
off. 

(Please read the GENERAL 

INFORMATION)

• 

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 GRILL 
INSTALLED. DO NOT ATTEMPT TO 
WARM OR COOK FOOD ON THIS 
HEATER. 

• 

Do not use non-approved attachments 
on this heater. 

• 

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.

• 

Do not leave this heater unattended 
while it is in operation. Keep children 
and pets away from the heater at all 
time.

• 

Do not place clothing or other 
flammable material on or near the 
appliance.

• 

Do not operate heater in any moving 
vehicle.

• 

Only disposable cylinders marked with 
the proper fuel type approved for the 
appliance, can be used.

• 

This heater can be used in a 
recreational enclosure only if the 
enclosure has a window or roof vent.

• 

This heater requires a vent area of 

18 square inches (example 4.25” x 
4.25” opening) at the ceiling and at 

floor level for adequate ventilation 
during operation. Do not use other 
fuel burning appliances inside.

• 

A propane-fired portable heater used 
for emergency home use shall not 
be set at an input setting in excess 
of 5,000 BTU/HR (1,466 W) when 
located in a bathroom and shall not 
be set at an input setting of more 
than 10,000 BTU/HR (2,931 W) 
when located in a bedroom. Refer to 
Specifications table for permissible 
settings.

• 

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.

• 

If the wire guard is removed for 
servicing, it 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 ventilation air, this 
heater may give off excessive CARBON 
MONOXIDE, an odorless, poisonous 
gas.  

WARNING: 

Early signs of carbon 

monoxide poisoning resemble the 
flu, with headache, dizziness, and/or 
nausea. If you have these signs, the 
heater may not be working properly. 
Get fresh air at once! Have heater 
serviced. 
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!

Summary of Contents for MH18B

Page 1: ...ter branded accessories See page 10 for WARNING information WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or...

Page 2: ...other reproductive harm for more information go to www P65Warnings ca gov WARNING If the recreational enclosure does not have a window or roof vent DO NOT USE THIS HEATER inside NOTICE Not for use in...

Page 3: ...ith the proper fuel type approved for the appliance can be used This heater can be used in a recreational enclosure only if the enclosure has a window or roof vent This heater requires a vent area of...

Page 4: ...odor may differ in intensity at different levels Since propane LP gas is heavier than air there may be more odor at lower levels Always be sensitive to the slightest gas odor If you continue to detec...

Page 5: ...nt is not left unattended d This heater requires a vent area of 18 square inches example 4 25 x 4 25 opening minimum for adequate ventilation during operation Do not use other fuel burning appliances...

Page 6: ...GAS CYLINDERS MUST BE DISCONNECTED FROM HEATER WHEN NOT IN USE LIGHTING OPERATING INSTRUCTIONS FOR USE WITH HOSE CONNECTED TO A REMOTE CYLINDER MAXIMUM SIZE 20 LBS This Heater may be used with a remo...

Page 7: ...E TO CHECK FOR LEAKS DO NOT OVERTIGHTEN SEE WARNING ON PLASTIC DOORS 6 Depress and turn Control Knob counterclockwise to PILOT position and hold down for 1 5 seconds See Figure 4 This may take longer...

Page 8: ...m Release from 2 top clips Set aside 5 Remove 3 screws attaching lower baffle to expose burner air openings 6 Inspect interior of casing assembly for accumulation of dust lint or spider webs If necess...

Page 9: ...from bumping heater 3 Re light REMEDY SYMPTOM Spark electrode produces spark but pilot does not light CAUSE 1 No gas to heater 1 Install disposable cylinder or connect hose and filter where required a...

Page 10: ...n used in a manner inconsistent with the warnings and instructions contained in the owner s manual including but not limited to using a heater for the cooking or warming of foods or c has been used wi...

Page 11: ...ombusti n Ver p gina 2 LEA CUIDADOSAMENTE LAS INSTRUCCIONES Lea y siga todas las instrucciones Conserve estas instrucciones en un lugar seguro para futura referencia No permita que nadie que no haya l...

Page 12: ...casa de vivienda en California Este calefactor est equipado con un SISTEMA DE SEGURIDAD dise ado para apagar el calefactor si no cuenta con suficiente aire fresco ADVERTENCIA NO ALTERE EL SISTEMA DE...

Page 13: ...be ser sustituido antes del funcionamiento del calentador El artefacto deber ser inspeccionado antes de cada uso Es posible que una limpieza frecuente sea necesaria El control de los compartimientos e...

Page 14: ...olor puede descolorarse en algunas circunstancias Si hay un agujero subterr neo el movimiento de gas por el suelo puede filtrar el odorant El propano LP olor de gas puede diferenciarse en la intensida...

Page 15: ...n combusti n e El calentador port til utilizado deber descontinuarse y retirarse del edificio en el momento en que los electrodom sticos instalados permanentemente vuelvan a funcionar INSTRUCCIONES DE...

Page 16: ...ede ser usado en un recinto recreacional o recinto de trabajo de construcci n temporal con un cilindro de propano refillable remoto S LO cuando el cilindro es localizado al aire libre y el Calentador...

Page 17: ...rio repita esta presionada la perilla de control hacia adentro en la posici n de Piloto por 30 60 segundos 8 Despu s de encender el piloto suelte la perilla La perilla debe quedar extendida por comple...

Page 18: ...Reservado 5 Retire los tres 3 tornillos que fijan la parte inferior de la campana extractora para dejar expuestas las aberturas de aire de los quemadores 6 Inspeccione el interior del ensamble de la c...

Page 19: ...rlo S NTOMA El electrodo de encendido produce chispa pero el piloto no se enciende CAUSA SOLUCI N 1 No llega gas al calefactor 1 Instale un cilindro descartable o conecte la manguera y encien da la v...

Page 20: ...DESCARGO DE RESPONSABILIDAD Esta garant a no cubre ning n producto que a haya estado sujeto a mal uso o negligencia b se haya utilizado de manera inconsistente con las advertencias e instrucciones con...

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