General Information, Maintenance

•Any safety screen or guard removed for servicing the appliance must be replaced prior to operating the heater.

•The appliance should be inspected before each use. Frequent cleaning may be required. The control compartments, burner(s) and circulating air pas- sageways of the appliance must be kept clean, see

MAINTENANCE.

•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 water.

•When used without adequate combustion and ventilation air, this heater may give off excessive CARBON MONOXIDE, an odorless, poisonous gas.

•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.

•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 HEATER 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!

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 in commercial enclosures, having means for providing combustion air and ventilation, such as construction trailers or temporary work enclosures.

Note: The heater can be used outdoors, but may experi- ence nuisance shutoffs in certain wind conditions.

•When the heater is cold or at room temperature, it will take a few minutes for the burner(s) tile to turn bright orange. This is normal and the heater is working prop- erly. If burner(s) tile is visibly flaming, turn heater off and call a qualified service technician.

•When the unit is lit, there should be about a quarter inch border around the tile that will not turn bright orange. This is normal.

•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.

•Operating time will vary depending on the heater setting and the supply cylinder size. (One 1 lb. cylinder: 1.5 to 6 hours. Two 1 lb. cylinders: 3 to 12 hours. Two 20 lb. cylinders: 50 to 220 hours.) Heater may be operated from quick disconnect, one or both tank swivel inlets.

•When moving heater when lit or bumping heater setting it down, tip over switch may shut off heater. If this happens, re-light.

•NOTE: THIS HEATER MAY BE OPERATED WITH (1) OR (2) DISPOSABLE 1 LB. PROPANE CYLINDERS OR WITH A REMOTE REFILLABLE CYLINDER(S) MAX. 20 LBS USING (1) OR (2) F273701, F273702 OR F272702 HOSE ASSEMBLIES WITH FUEL FILTERS (F273699) ON EACH HOSE ASSEMBLY. IT MAY ALSO BE OPERATED WITH (1) F271802 HOSE ASSEMBLY CONNECTED TO A REGULATED (11” W.C.) PROPANE SOURCE OR (1) F271803 HOSE ASSEMBLY WITH 11” REGULATOR WITH ACME NUT.

Mr. Heater Big Buddy/Tough Buddy

Operating Instructions and Owner’s Manual

MH18B specifications

The Enerco MH18B is a versatile and robust portable heater designed to provide efficient heating solutions for both indoor and outdoor environments. Known for its reliability and performance, the MH18B is ideal for a range of applications including construction sites, garages, workshops, and outdoor events.

One of the standout features of the Enerco MH18B is its high heating capacity, generating up to 18,000 BTUs, which can effectively heat spaces up to 450 square feet. This makes it suitable for sizable areas where warmth is needed quickly and effectively. The heater utilizes a forced air design, which ensures rapid heat distribution, making it a popular choice for those who need to heat up spaces in a short amount of time.

In terms of fuel efficiency, the MH18B operates using propane, which is known for its clean-burning properties. The unit has an impressive runtime, allowing for extended use without frequent refueling. This makes it not only efficient but also cost-effective, allowing users to maximize their heating time without incurring high fuel costs.

Safety features are another critical aspect of the Enerco MH18B. The device comes equipped with a built-in tip-over switch and an automatic shut-off system to prevent any potential hazards. These safety features ensure that the heater operates securely, making it suitable for a variety of settings, including those where individuals may be present for long hours.

The MH18B is designed for user convenience, featuring easy-to-use controls and a lightweight structure that allows for portability. It includes a sturdy handle for easy transport, enabling users to move it from one location to another with minimal effort.

Durability is a hallmark of the MH18B, built with high-quality materials that withstand the rigors of everyday use, whether on a job site or at home. Its compact design allows for easy storage when not in use.

In conclusion, the Enerco MH18B is a powerful, efficient, and safe heating solution ideal for a variety of environments. With its impressive output, fuel efficiency, safety features, and portability, it stands out as a preferred choice for both professional contractors and DIY enthusiasts alike. Whether for warmth during a cold workday or for outdoor gatherings, the MH18B ensures reliable and effective heating.