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5

Operating Instructions and Owner’s Manual

Mr. Heater | Portable Buddy

• 

Depress and turn Control Knob counterclockwise to “PI-
LOT” position and hold for 1 - 2 minutes. This may take 
longer to purge air from the supply hose depending on 
the length of the hose being used.

• 

Depress red spark ignition button to light pilot flame 
(repeat until pilot lights) and continue to hold Control 
Knob down and at “PILOT” position for 30-60 seconds 
to enable Pilot Light Safety System.

• 

After lighting pilot, release knob. Knob should return 
to fully extended position. To operate heater slightly 
depress knob and gently turn to lock in desired position.

• 

Fully turn Control Knob to “HI” position to light burner 
tile. Leave on “HI” position until burner tile turns bright 
orange.

• 

After burner tile has turned bright orange, adjust heat 
output by turning Control Knob to desired position 
(“LO” or “HI” setting).

caution:

 Do not try to adjust heating levels by using the 

propane tank shut off valve. 

warning: 

DO NOT OPERATE HEATER UNLESS CONTROL KNOB IS 
LOCKED IN A POSITION MARKED “HI”, “LO” or “PILOT”.
NEVER SET CONTROL KNOB BETWEEN LOCKED POSI-
TIONS. POOR COMBUSTION AND HIGHER LEVELS OF 
CARBON MONOXIDE MAY RESULT.

• 

to shut off heater, shut off propane at supply tank, 
allow  heater  to  use-up  propane  in  supply  line  un-
til  heater  shuts  off,  then  slightly  push  down  and 
turn  control  Knob  clockwise  to  “OFF”  position.

• 

cautiOn:

 After turning heater off, wire guard will 

remain hot. Allow to thoroughly cool before storing.

• 

When not in use, the gas must be turned off at the 
LP-gas supply cylinder. As stated before allow heater 
to use up propane in supply line until heater shuts off. 
When the LP-gas supply cylinder is not disconnected 
from the heater, the heater and the cylinder must be 
stored outdoors, in a well ventilated space, out of reach 
of children, and must not be stored in a building, garage 
or any other enclosed area.

• 

Indoor storage of the heater is permissible only if the 
cylinder is disconnected and removed from the heater. 
Cylinders must be stored outdoors out of the reach of 
children and must not be stored in a building, garage or 
any other enclosed area.

Maintenance:

Always keep the heater area clear and free from 
combustible materials, gasoline and other flammable 
vapors and liquids.
Keep the vent areas (slots in the bottom and the top at the 
front of heater) clear at all times.
Visually inspect the pilot flame and burner periodically 
during use. The pilot flame should be blue in color (not 
yellow) and will extend beyond the thermocouple. The 
flame will surround the thermocouple just below the tip, 
see Figure 2. 

A slight yellow flame may occur where the pilot flame 
and main burner flame meet. The burner should be bright 
orange (with a slight blue color around the border, a red-
orange haze that is visible on the ceramic tile is acceptable) 
and without a noticeable flame. A blue flame that rolls out 
at the top of the ceramic tile indicates an accumulation of 
dust, lint or spider webs inside the casing assembly and 
main burner assembly. If the pilot is yellow or the burner 
has a noticeable flame, cleaning may be required. Use the 
following procedure to inspect the casing assembly and 
main burner assembly.
It is necessary to periodically check the burner orifice and 
burner venturi tube to make sure they are clear of insects/
nests or spider webs that may accumulate over time. A 
clogged tube can lead to a fire.
1  Allow heater to thoroughly cool before performing any 

maintenance.

2  Remove disposable 1 lb. cylinder from heater or turn 

OFF gas supply at remote cylinder valve, and disconnect 
hose from heater.

3  Remove wire guard from front of heater by gently bend-

ing to remove from holes in front cover.

4  Remove (1) burner assembly retaining screw from bot-

tom of the heater. 

5  Pull burner assembly from front of the heater.
6  Inspect interior of casing assembly for accumulation 

of dust, lint or spider webs. If necessary, clean interior 
of casing assembly with a vacuum cleaner or apply air 
pressure. Do not damage any components within casing 
assembly when you are cleaning.

7  Inspect and clean main burner orifice (mounted to pilot 

bracket with jam nut) by using a vacuum or apply air 
pressure at orifice opening.

8  Inspect and clean pilot (mounted to bracket) by using a 

vacuum or apply air pressure through the holes in the 
pilot indicated by the arrows in Figure 2. 

 

warning:

 Never use needles, wires, or similar cylin-

drical objects to clean the pilot to avoid damaging the 
calibrated ruby that controls the gas flow.

Figure 2

Summary of Contents for Portable Buddy MH9B GR

Page 1: ...or explosion may result causing property damage personal injury or loss of life WARNING Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other applian...

Page 2: ...t once Have heater serviced SPECIFICATIONS MODEL NO MH9B GR GAS TYPE PROPANE INPUT BTU HR 4 000 9 000 CLEARANCE TO COMBUSTIBLES TOP 30 FRONT 24 SIDES 6 REAR 0 WARNING If the recreational or commercial...

Page 3: ...ible materi als 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...

Page 4: ...e Tighten all hose connections Mr Heater strongly recommends using disposable fuel filter F273699 to trap any oil substances when connect ed to a remote cylinder that can make heater inoper able Open...

Page 5: ...eater area clear and free from combustible materials gasoline and other flammable vapors and liquids Keep the vent areas slots in the bottom and the top at the front of heater clear at all times Visua...

Page 6: ...ligned turn gas control knob to PILOT position and depress Pilot is blocked from spider web or dirt clean pilot see MAINTENANCE If Pilot flame does not stay lit when knob is released CHECK Control kno...

Page 7: ...7 Operating Instructions and Owner s Manual Mr Heater Portable Buddy...

Page 8: ...direct from the factory FOR INFORMATION REGARDING SERVICE Please call Toll Free 800 251 0001 www mrheater com Our office hours are 8 30 AM 5 00 PM EST Monday through Friday Please include the model nu...

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