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
4.MINIMUM CLEARANCE FROM COMBUSTIBLE MATERIALS
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.WARNING: To avoid injury or property damage never allow clothing, tents or other combustible material within 36” 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.
BTU/HR. RATING | NORMAL | CLEARANCES TO COMBUSTIBLES | |||||
MODEL | GAS |
| OPERATING | FROM C.L. OF |
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NO. | PROPANE | PROCEDURE | HTR. TO FLOOR | SIDES | REAR | CEILING | |
MH42T | 42,000 |
| Vertical | 32” | 36" | 36" | 48” |
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Figure 3
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 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.
6. LIGHTING INSTRUCTIONS
A.Before attempting to light the heater, check all fittings and connections with a soap solution. NEVER USE A MATCH TO CHECK FOR LEAKS. Should a gas leak occur, do not attempt to repair or use heater. Return the heater to your dealer or the address given on back page.
B.Fuel – This heater must be used only with a vapor withdrawal LP gas bulk cylinder. THE BULK TANK MUST BE EQUIPPED WITH A STANDARD POL VALVE.
WARNING:
USE HD.5 PROPANE GAS ONLY. DO NOT USE ANY OTHER TYPE FUEL. SEE YOUR PROPANE DEALER IF YOU HAVE ANY QUESTIONS REGARDING FUEL.
C.Turn the heater’s
D.To light a burner, MH42T Model, place a lit match across the mesh screen where you see “light here” on reflector. (See Fig.
4)THEN push in valve button on Safety Shutoff Valve. After the burner is lit, continue to hold valve button in for 30 seconds, then release the button slowly. CAUTION: DO NOT PUSH IN VALVE BUTTON BEFORE INSERTING LIT MATCH. Repeat step “D” for each burner.
E.Adjust heat output by turning knob to desired position.
F.If burner does not light within 30 seconds, turn the heater’s regulator knob to “off” (clockwise) and allow at least five minutes for gas to dissipate before attempting to relight.
G.NOTE: Should the orifice become clogged as indicated by low volume of gas when operating on “Hi” with a full cylinder, or should the heater fail to operate properly for any reason, return the heater to the dealer or the address given on back page for repair or replacement. DO NOT ATTEMPT TO REPAIR OR TAMPER WITH HEATER.
H.COOKING: DO NOT USE THIS HEATER FOR COOKING.
Figure 4
Mr. Heater | 5 | Operating Instructions and Owner’s Manual |
