MHUniversity Convection Heaters

Big heat right out of the box. The propane Convection heaters pack a big punch in a small package. They utilize the natural act of warm air rising to quickly heat up the area. Equipped with a thermo-electric safety valve to shut the gas flow off if the flame ever goes out. Just hook-up the supplied 10ft propane hose and regulator assembly to a 20lb propane tank, then easily light the heater utilizing the factory installed piezo igniter and enjoy the comforts of a toasty warm jobsite.

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Convection Heater FAQs
Convection Heater Manuals and Troubleshooting Guides
Convection Heaters
Parts Ordering

Convection Heater FAQs

I can not get my heater to light even the pilot will not light.

First be sure your supply tank has been turned on slowly to prevent the excess flow valve from reducing the flow of gas. If you are using a newly filled propane tank, it may have air trapped in it. Hold the safety control valve in for several minutes to help purge this air and then retry. This is how to prevent the excess flow safety shut off device from activating. Shut the valve off on the propane device and the tank. When you open the valve on the propane tank, do it slowly until the valve turns freely and then open it all the way. (This information is on the instructions under Lighting and Operating Instructions.)

If this unit has been in storage or in the open, clean the pilot tube as they can become blocked by spider webs or other debris as insects are attracted to the odor additive in the propane.  To clean the pilot tube, it is best to call in to our Technical Service and walk through the process.

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The pilot will light but goes out when I release the safety control valve.

Be sure the thermocouple is in full coverage from the pilot light. There could be some blockage in the pilot tube that needs to be cleaned out. (Spiders can get into this tube quickly and reduce or completely block the tube.)

Convection Thermocouple

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Once the pilot is lit the main burner will light then all the flame goes out.

The regulator could be bad. Dirt in the main burner orifice could be blocking the flow of gas. Be sure to use the properly sized tank for your heater.

MINIMUM TANK SIZES:
MH25CVX - 20lb. Tank
MH80CVX - 40lb. Tank
MH200CVX - 100lb. Tank

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The flame appears mostly yellow.

On the MH80CV the flame will be mostly yellow. The MH200CV should be mostly blue.

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What does the heating area square feet mean?

Square footage is the length of an area times the width of an area. Knowing the square footage of an area allows you to estimate the amount of BTUs necessary to heat the area most effectively. A generally accepted formula is: Square Footage x 40 = required BTUs. This is just a starting point. Ceiling height, building layout, and level of insulation will also factor into your BTU needs.

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Do you need to order parts?

For your convenience please enter your serial number below to access Mr. Heater’s interactive schematic & parts ordering system. This system will allow you to browse your specific product schematic to order the correct service parts as well as download a complete manual for your make & model year.  If your product was produced any year prior (2011 and earlier), please call our Service Department at 1-800-251-0001, where our technicians will gladly assist you.


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Convection Heater Manuals and Troubleshooting Guides

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Parts Ordering

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