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

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

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

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

Mr. Heater MH4B • Base Camp MH4BC

Mr. Heater MH4B | Base Camp MH4BC

Operating Instructions and Owner’s Manual

pARTS LIST:

NOTES:

SEE bACK pAGE FOR pARTS ORDERING INFORMATION

______________________________________________________________

Operating Instructions and Owner’s Manual

ITEM

NO.

PART

NUMBER

DESCRIPTION

Regulator/Valve Assembly

Oriﬁce

15161

15151

15163

15126

15128

15122

15123

15165

15124

15157

15158

15162

15138

15155

15153

15145

73403

15148

15154

Off Button Wire

Left Housing

Right Service Housing

On Button

Off Button

Off Button Spring

Tank Base

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

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

www.mrheater.com

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.

CSA 4.98

U.S.

06/08 15125 Rev. A

Mr. Heater MH4B | Base Camp MH4BC

Operating Instructions and Owner’s Manual

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