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Operating Instructions and Owner’s ManualMr. Heater | Gas-Fired Infra-Red Portable Heater
2. FOR SAFE OPERATION
A. READ INSTRUCTIONS CAREFULLY: Read and adhere to these
instructions. Do not allow anyone who
has not read the
instructions to assemble, light, adjust or operate the heater.
WARNING
KEEP THE HEATER OUT OF THE REACH OF CHILDREN
B. PROPANE IS VERY FLAMMABLE: In the event of a leak,
propane will accumulate and the possibility of a fire is present.
Propane gas is scented and its strong odor is readily detectable.
Never strike a match or bring any flame or create an electric
spark in an enclosure when you smell propane gas. Ventilate
the area thoroughly, move the heater outside, find and correct
the source of the leak before attempting to light any appliance.
If you are unsure of these instructions evacuate immediately
and call for help.
C. GAS LEAKAGE: If the leak cannot be corrected, do not tamper
with the heater; follow the shut down
instructions and return
the heater to the dealer or address given on last page.
WARNING
DO NOT USE THIS HEATER ON BULK TANKS OF GREATER
CAPACITY THAN 20 POUNDS LPG (50 POUNDS WATER
CAPACITY).
D. LEAK DETECTION: Before each use of the heater check all
fittings and connections with a soap solution to be sure there
are no leaks. Be sure the POL fitting is wrench (7/8”) tightened
into the On-Off valve on the propane cylinder. NEVER, NEVER
USE ANY FLAME FOR LEAK TEST.
E. CONNECTING HEATER TO PROPANE CYLINDER: Always
connect the heater to the bulk cylinder in the outdoors or in a
well ventilated area. Use a 7/8” open end wrench. NEVER
connect this heater to a cylinder near an open flame.
F. USE OF HEATER: Always operate the heater with the propane
cylinder in an upright position on a level noncombustible
surface. NEVER place the cylinder on its side when operating
the heater.
G. ATTEND HEATER: Do not leave heater unattended while it is in
operation.
H. ALWAYS LIGHT HEATER WITH MATCH OR “SPARKLITE”
IGNITER: NEVER attempt to light the heater with a spark
lighter.
I. DO NOT TAMPER: Should the heater not perform properly,
such as little or no heat when operating in the “Hi” position, or
for any other reason, DO NOT ATTEMPT TO REPAIR OR TAMPER
with the heater. Any tampering could make the use of the
heater unsafe and dangerous. Return the heater to the dealer
or the address given on last page for repair or replacement.
J. FOR STORAGE: The heater Hi-Med-Lo-Off regulating valve
should always be turned to “Off” when the heater is not in use.
Allow at least 15 minutes for cooling before handling and
storing. Detach propane cylinder from heater before storing.
DO NOT store propane cylinders near open flame or heat.
K. DO NOT TRANSPORT OR MOVE APPLIANCE WHILE IN
OPERATION OR WHILE HEATER IS ATTACHED. FOLLOW
SHUTDOWN AND STORAGE INSTRUCTIONS TO
TRANSPORT OR MOVE THIS APPLIANCE.
3. VENTILATION
A. WARNING: This heater is an unvented appliance and
MUST be used ONLY in a well ventilated area. NEVER
attempt to operate the heater inside any vehicle, camper or
enclosure.
B. Any combustion process requires and consumes oxygen, and
will produce carbon monoxide. THIS HEATER MUST BE USED
WITH ADEQUATE VENTILATION. Do not use in a tightly
enclosed area. Two openings directly to the outdoors MUST be
provided. One HIGH and one LOW, preferably on opposite sides
of the enclosure. EACH OPENING SHALL HAVE A MINIMUM
FREE AREA OF 36 SQUARE INCHES (6” X 6”). Structures of
tight construction or tents using fire retardant materials will
require larger openings. If any additional fuel burning
appliances are operated, ALWAYS provide additional
ventilation. Increase the area of each opening by at least 2
square inches for each 1,000 BTU’s per hour of additional input
rating.
C. WARNING: Provide ample ventilation. This heater consumes air
(oxygen). Do not use this heater in unventilated structures to
avoid endangering your life. Provide additional ventilation for
any additional fuel-burning appliances and additional
occupants.
4. MINIMUM CLEARANCE FROM
COMBUSTIBLE MATERIALS
A. When operating, the heater surfaces are extremely hot. Keep
sleeping bags, clothing, and all combustible materials clear of
the heater by at least the distances shown in figure 3.
B. WARNING: To avoid injury or property damage never allow
clothing, tents or other combustible material within 24” of the
heater. This heater must be located at least 32” above the floor
level when in use. Never operate the heater when sleeping.
C. WARNING: Never direct the heat output of this heater toward
any propane tank within 20 feet.
5. ASSEMBLY PROCEDURE
A. Make sure the regulator knob on the heater is “off” by turning
knob clockwise to the “OFF” position.
B. Carefully screw POL nut directly into bulk 20 lb. propane
cylinder, counterclockwise. REMEMBER – This is a left hand
thread – see Figure 1. Make sure the heater is in a vertical
upright position and directed away from the collar of the bulk
tank. Use a 7/8” open end wrench to tighten the POL fitting –
left hand thread – see Fig. 1.
CLEARANCES TO COMBUSTIBLES
Figure 3
MH24T 28,000 Vertical 32” 24" 24" 36”
and
MH24TS
MODEL
NO.
GAS
PROPANE
BTU/HR. RATING
NORMAL
OPERATING
PROCEDURE
FROM C.L. OF
HTR. TO FLOOR
SIDES REAR
CEILING