Mr. Heater MH45T Assembly Procedure, Lighting Instructions, Ventilation, Minimum Clearance From

E.	CONNECTING HEATER TO PROPANE CYLINDER: Always	5. ASSEMBLY PROCEDURE
	connect the heater to the bulk cylinder in the outdoors or in a	A.	Make sure the regulator knob on the heater is “off” by turning
	well ventilated area. NEVER connect this heater to a cylinder near
	an open flame.		knob clockwise to the “OFF” position.
F.	USE OF HEATER: Always operate the heater with the propane	B.	Carefully screw POL nut directly into bulk propane cylinder,
	cylinder in an upright position on a level noncombustible surface.		counterclockwise. REMEMBER – This is a left hand thread – see
	NEVER place the cylinder on its side when operating the heater.		Figure 1. Make sure the heater is in a vertical upright position
G.	ATTEND HEATER: Do not leave heater unattended while it is in		and directed away from the collar of the bulk tank. Use the hand
			wheel to tighten the POL fitting – left hand thread – see Fig. 1.
	operation.
H.	ALWAYS USE A MATCH TO LIGHT HEATER: NEVER attempt to	6. LIGHTING INSTRUCTIONS
	light the heater with a spark lighter.	A.	Before attempting to light the heater, check all fittings and
I.	DO NOT TAMPER: Should the heater not perform properly,
			connections with a soap solution. NEVER USE A MATCH TO
	such as little or no heat when operating in the “Hi” position, or		CHECK FOR LEAKS. Should a gas leak occur, do not attempt
	for any other reason, DO NOT ATTEMPT TO REPAIR OR TAMPER		to repair or use heater. Return the heater to your dealer or the
	with the heater. Any tampering could make the use of the heater		address given on back page.
	unsafe and dangerous. Return the heater to the dealer or the	B.	Fuel – This heater must be used only with a vapor withdrawal LP
	address given on last page for repair or replacement.
			gas bulk cylinder. THE BULK TANK MUST BE EQUIPPED WITH A
J.	FOR STORAGE: The heater Hi-Med-Lo-Off regulating valve
			STANDARD POL VALVE.
	should always be turned to “Off” when the heater is not in
	use. Allow at least 15 minutes for cooling before handling and		WARNING:
	storing. Detach propane cylinder from heater before storing. DO		USE HD.5 PROPANE GAS ONLY. DO NOT USE ANY OTHER
	NOT store propane cylinders near open flame or heat.
			TYPE FUEL. SEE YOUR PROPANE DEALER IF YOU HAVE ANY
K.	DO NOT TRANSPORT OR MOVE APPLIANCE WHILE IN
			QUESTIONS REGARDING FUEL.
	OPERATION OR WHILE HEATER IS ATTACHED. FOLLOW
		C.	Turn the heater’s “Hi-Med-Lo-Off” regulator knob to “Med”
	SHUTDOWN AND STORAGE INSTRUCTIONS TO TRANSPORT
			(counterclockwise).
	OR MOVE THIS APPLIANCE.
3. VENTILATION		D.	To light a burner, MH45T Model, place a lit match across the
			mesh screen where you see “light here” on reflector. (See Fig.
A. WARNING: This heater is an unvented appliance and			4) THEN push in valve button on Safety Shutoff Valve. After the
			burner is lit, continue to hold valve button in for 30 seconds,
	MUST be used ONLY in a well ventilated area. NEVER
			then release the button slowly. CAUTION: DO NOT PUSH IN
	attempt to operate the heater inside any vehicle, camper or		VALVE BUTTON BEFORE INSERTING LIT MATCH. Repeat step “D”
	enclosure.		for each burner.
B. FOR OUTDOOR USE ONLY. Any combustion process		E.	Adjust heat output by turning knob to desired position.
	requires and consumes oxygen, and will produce carbon
		F.	If burner does not light within 30 seconds, turn the heater’s
	monoxide.
			regulator knob to “off” (clockwise) and allow at least five
C. WARNING: provide ample ventilation. This heater con-
			minutes for gas to dissipate before attempting to relight.
	sumes air (oxygen). Do not use this heater in unventilated
		G.	NOTE: Should the orifice become clogged as indicated by low
	structures to avoid endangering your life. Provide additional
	ventilation for any additional fuel-burning appliances and		volume of gas when operating on “Hi” with a full cylinder, or
			should the heater fail to operate properly for any reason, return
	additional occupants.
			the heater to the dealer or the address given on back page for
4. MINIMUM CLEARANCE FROM			repair or replacement. DO NOT ATTEMPT TO REPAIR OR TAMPER
			WITH HEATER.
	COMBUSTIBLE MATERIALS (Fig. 3)	H.	COOKING: DO NOT USE THIS HEATER FOR COOKING.

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
NO.	PROPANE	PROCEDURE	HTR. TO FLOOR	SIDES	REAR	CEILING	FRONT
MH45T	45,000	Vertical	32”	36"	36"	48”	48"

Figure 3

Figure 4

Mr. Heater Gas-Fired Infra-Red Portable Heater 5 Operating Instructions and Owner’s Manual