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Mr. Heater | Gas-Fired Infra-Red Portable Heater Operating Instructions and Owner’s Manual
ODOR FADE WARNING
WARNING
Asphyxiation Hazard
• Do not use this heater for heating human living
quarters.
• 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.
Symptom of carbon monoxide poisoning can
include headaches dizziness and difficulty in
breathing.
1. GENERAL INFORMATION
A. The Mr. Heater MH12C and the MH12CS are high pressure
propane appliances and are designed to be connected to a 14.1
or 16.4 ounce disposable propane cylinder. Every unit is tested
during manufacturing and shipped fully assembled except for
the wire stand.
B. These heaters are equipped with an automatic Safety Shutoff
Valve. The gas flow will automatically stop if the heater fails to
operate for any reason.
C. Maximum safety and convenience have been built into the Hi-
Med-Lo-Off Control Valve/Regulator. The following table lists
the approximate BTU’s consumed and the operating hours you
can reasonably expect from bulk propane cylinders.
D. Model MH12CS is equipped with an igniter for convenient
heater lite-off.
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 STORE PROPANE CYLINDERS NEAR AN OPEN
FLAME OR HEAT
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. NEVER, NEVER USE ANY FLAME FOR LEAK TEST.
E. CONNECTING HEATER TO PROPANE CYLINDER: Always
connect the heater to the cylinder in the outdoors or in a well
ventilated area. 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. In cooking position cylinder must be 30 degrees
from horizontal.
G. ATTEND HEATER: Do not leave heater unattended while it is in
operation.
H. ALWAYS LIGHT HEATER WITH MATCH or “Sparklite” Igniter.
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.
Valve Position BTU Input Cylinder 14.1 oz. Cylinder 16.4 oz.
Hi 14,000 1.4 hours 1.6 hours
Med 12,000 1.6 hours 1.8 hours
Lo 8,000 2.3 hours 2.7 hours
Figure 3