Mr Heater Automobile MH4B User Manual

MR HEATER STARTING SERIAL #: MHC1510000001  
BASECAMP STARTING SERIAL #: MHC151100000001  
OPERATING INSTRUCTIONS AND OWNER’S MANUAL  
READ INSTRUCTIONS CAREFULLY: Read and  
MR. HEATER  
BASECAMP  
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.  
MH4BC  
MH4B  
PORTABLE PROPANE HEATER FOR  
RECREATIONAL, COMMERCIAL AND  
EMERGENCY INDOOR USE  
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.  
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.  
Shut off gas to appliance.  
— Service must be performed by a qualified service agency.  
Adequate combustion and ventilation air must be provided. Refer to page 3.  
06/08 15125 Rev. A  
ENERCO GROUP INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000  
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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 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 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 com-  
mercial enclosure with a window or roof vent. It may  
also be used outdoors.  
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 and  
in commercial enclosures, having means for providing  
combustion air and ventilation, such as construction  
trailers or temporary work enclosures.  
This heater requires a vent area of 4 square inches (ex-  
ample 2” x 2” opening) minimum for adequate ventila-  
tion during operation. Do not use other fuel burning  
appliances inside.  
GAS PRESSURE AT HEATER IS REGULATED AND FIXED  
AT 11” W.C.  
REGULATOR IN HEATER MUST ALWAYS BE IN PLACE  
Note: The heater can be used outdoors, but may  
experience nuisance shutoffs due to certain wind  
conditions.  
DURING OPERATION.  
Any safety screen or guard removed for servicing the ap-  
pliance must be replaced prior to operating the heater.  
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.  
The appliance should be inspected before each use.  
Frequent cleaning may be required. The control com-  
partments, burner and circulating air passageways of  
the appliance must be kept clean, see MAINTENANCE.  
When the unit is lit, there should be about a quarter  
inch (1/4”) border around the tile that will not turn  
bright orange. This is normal.  
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 wa-  
ter.  
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 used without adequate combustion and ventila-  
tion air, this heater may give off excessive CARBON  
MONOXIDE, an odorless, poisonous gas.  
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. Due to local atmospheric  
conditions heater may not re-light.  
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.  
Operating time will be approximately 5 1/2 hours on a  
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 HEAT-  
ER 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!  
one 1lb. cylinder.  
When moving heater when lit or bumping heater setting  
it down, tip over switch may shut off heater. If this  
happens, re-light.  
Due to natural operation of small tanks, condensation  
may build up on tank and drip on surface under heater.  
Mr. Heater MH4B | Base Camp MH4BC  
Operating Instructions and Owner’s Manual  
3
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LIGHTING / OpERATING INSTRUCTIONS  
WARNING: Always inspect propane cylinder and heater  
propane connections for damage, dirt, and debris before  
attaching propane cylinder. Do not use if head of cylinder is  
damaged, punctured or deteriorated.  
Pilot Flame  
ALWAYS ATTACH OR DETACH CYLINDER OUTDOORS AWAY  
FROM FLAMES, OTHER IGNITION SOURCES, AND ONLY  
WHEN HEATER IS COOL TO TOUCH. NEVER SMOKE WHEN  
ATTACHING OR REMOVING PROPANE CYLINDER!  
Use only LP-gas cylinders marked in accordance with the  
U.S. Dept. of Transportation (DOT).  
Use only 16.4 oz. (1 lb.) disposable cylinders that mate  
with No. 600 valve connection.  
Oxygen Depletion Sensor  
Heater and attached cylinder must be in an upright  
Figure 2  
position during operation.  
inside the housing 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 to make sure that they are clear of insects/  
nests or spider webs that may accumulate over time. A  
clogged tube can lead to a fire.  
Screw 1 lb. disposable LP-gas supply cylinder clockwise  
(from bottom) into portable heater until hand-tight and  
fit cylinder into stand.  
Check cylinder connection for leaks with soapy water  
at the threaded connection under the domed plastic  
cover where the cylinder screws into the regulator. SEE  
WARNING! ON PLASTIC COVER.  
Depress “ON” button to light pilot flame (repeat until  
pilot lights) and continue to hold for 30-60 seconds.  
CLEANING INSTRUCTIONS:  
After lighting pilot, release “ON” button to light heater.  
To shut off heater, press the “OFF” button.  
1. Allow heater to thoroughly cool before performing  
any maintenance.  
2. Remove disposable 1 lb. propane cylinder from  
heater.  
CAUTION: After turning heater off, wire guard will  
remain hot. Allow to thoroughly cool before storing.  
3. Remove right side plastic service panel (ref.5) by  
removing the six screws holding it in place.  
4. Inspect the interior of casing for accumulation of  
dust, lint or spider webs. If necessary, clean the  
interior of the casing assembly with a vacuum cleaner  
or compressed air (max 30 psi). Do not damage any  
components within the casing assembly when you  
are cleaning.  
Do not operate, store or remove cylinder near  
flammable items or ignition sources.  
• LP-GAS CYLINDERS MUST BE DISCONNECTED FROM  
HEATER WHEN NOT IN USE!  
MAINTENANCE:  
Always keep the heater area clear and free from  
combustible materials, gasoline and other flammable  
vapors and liquids.  
5. Inspect and clean main burner (ref. 13) and orifice  
(ref. 3) by using a vacuum or compressed air (max 30  
psi).  
Keep the vent areas (slots in the bottom and top of the  
heater) clear at all times.  
6. Inspect and clean pilot tube (ref. 14). Insert a  
doubled over pipe cleaner into the pilot tube until  
it bottoms against the pilot orifice (approximately  
2”). Rotate the pipe cleaner a couple of times  
and remove. Blow out the remaining debris using  
compressed air.  
WARNING: Never use needles, wires or similar cylindrical  
objects to clean the pilot to avoid damaging the  
calibrated ruby that controls the gas flow through the  
pilot orifice.  
Visually inspect the pilot flame and burner periodically  
during use. The pilot flame should be blue in color (not  
yellow) and will extend to 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.  
7. Apply compressed air (max 30 psi) into the ceramic  
tile of burner assembly and venturi tube (ref. 13) to  
remove dust, lint and spider webs.  
8. Reinstall the right side plastic service panel.  
A blue flame that rolls out at the top of the ceramic tile  
indicates an accumulation of dust, lint or spider webs  
Mr. Heater MH4B | Base Camp MH4BC  
Operating Instructions and Owner’s Manual  
4
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TROUbLESHOOTING INFORMATION:  
If Spark electrode does not produce spark.  
CHECK  
Spark electrode broken – replace.  
Igniter wire may not be attached to spark  
electrode.  
Igniter wire damaged – replace.  
Piezo igniter defective – replace regulator valve  
assembly.  
If Spark electrode produces spark but pilot does not light.  
CHECK  
No gas to heater – re-install or replace gas  
cylinder.  
Pilot is blocked from spider web or dirt – clean  
pilot, see MAINTENANCE.  
If Pilot flame does not stay lit when button is released.  
CHECK  
“Pilot/Ignition” button not held long enough  
to purge air from line.  
Pilot flame not surrounding thermocouple –  
clean pilot, see MAINTENANCE.  
Pilot Assembly defective – replace.  
Tip switch wires disconnected – connect  
tip switch (check off switch and off switch  
wiring).  
If Main burner does not ignite.  
CHECK  
Main burner orifice is blocked – clean burner,  
see MAINTENANCE.  
If Heater keeps shutting “OFF” during normal operation.  
CHECK  
Pilot is blocked – clean pilot, see  
MAINTENANCE.  
Provide minimum fresh air opening of 4 square  
inches (example 2” x 2” opening).  
Tip over switch activated from bumping heater.  
Re-light  
—INTENTIONALLY LEFT bLANK—  
Mr. Heater MH4B | Base Camp MH4BC  
Operating Instructions and Owner’s Manual  
5
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Mr. Heater MH4B • Base Camp MH4BC  
Mr. Heater MH4B | Base Camp MH4BC  
Operating Instructions and Owner’s Manual  
6
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pARTS LIST:  
NOTES:  
SEE bACK pAGE FOR pARTS ORDERING INFORMATION  
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Operating Instructions and Owner’s Manual  
ITEM  
NO.  
PART  
NUMBER  
DESCRIPTION  
Regulator/Valve Assembly  
Orifice  
1
15161  
15151  
15163  
15126  
15128  
15122  
15123  
15165  
15124  
15157  
15158  
15162  
15138  
15155  
15153  
15145  
73403  
15148  
15154  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
Off Button Wire  
Left Housing  
4
5
Right Service Housing  
On Button  
6
7
Off Button  
8
Off Button Spring  
Tank Base  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
Reflector Panel  
Reflector Ring  
Wire Guard  
Burner Assembly  
ODS/Pilot Assembly  
Burner Bracket  
Off Switch  
Tipover Switch  
Pilot Fuel Line  
Heat Shield  
Mr. Heater MH4B | Base Camp MH4BC  
7
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OpERATING INSTRUCTIONS AND OWNER’S MANUAL  
READ INSTRUCTIONS CAREFULLY: Read and  
MR. HEATER  
bASECAMp  
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.  
MH4BC  
MH4B  
WARNING:  
USE ONLY MANUFACTURER’S REPLACEMENT PARTS. USE OF ANY OTHER PARTS  
COULD CAUSE INJURY OR DEATH. REPLACEMENT PARTS ARE ONLY AVAILABLE  
DIRECT FROM THE FACTORY AND MUST BE INSTALLED BY A QUALIFIED SERVICE  
AGENCY.  
pARTS ORDERING INFORMATION:  
pURCHASING: Accessories may be purchased at any Mr. Heater local dealer or direct  
from the factory  
FOR INFORMATION REGARDING SERVICE  
Please call Toll-Free 800-251-0001  
Our office hours are 8:30 AM – 5:00 PM, EST, Monday through Friday.  
Please include the model number, date of purchase, and description of problem in all  
communication.  
LIMITED WARRANTY  
Enerco Group, 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. Enerco  
Group, 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 Enerco Group, Inc. within the warranty period.  
Enerco Group, Inc. reserves the right to make changes at any time, without notice or  
obligation, in colors, specifications, accessories, materials and models.  
ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000  
Mr. Heater and Portable Buddy are registered trademarks of Enerco Group, Inc.  
© 2003, Enerco/Mr. Heater. All rights reserved  
CSA 4.98  
U.S.  
06/08 15125 Rev. A  
Mr. Heater MH4B | Base Camp MH4BC  
Operating Instructions and Owner’s Manual  
8
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