Average Reviews:
(More customer reviews)Ordered the propane model to put up in a Morton Building workshop. Package arrived quickly with minimal damage to outside cardboard box. Nice unit and fairly easy to lift (I am 6' 190 lbs. average jock) but recommend two people to lift in place on ladder or other device.
Things to consider for installation: Installed two joist between trusses in the attic to hang the unit from (time consuming). Venting horizontal is easier but I perfer vertical. Think this process out. This unit requires a 4" exhaust vent. I went through a metal roof and used a Dektite on 4" double wall exhaust pipe. Make sure you have the appropriate tools, fasteners and sealers before starting this part of the project. Hooking the exhaust vent to the unit should be well planned too. It is not easy and you should have the exhaust vent pieces you plan to use to take some rough measurements prior to fit up. I hung the unit using threaded rod on C channel so I could adjust the unit up or down, side to side, and back to front (I used 19" center to center from side to side, could use 20" too). The brackets in the kit require a small amount of grinding to avoid the strain relief on the blower fan and if you use the top 1/2" knockout on the back of the unit for electrical connections. Electrical connections are easy. The unit has two 1/2" knockouts on back for electrical connections. I used 16-3 cord for power and 18-2 (solid) for the thermostat. I have it on a 15 amp circuit breaker. Use a strain relief for the power cord. The gas pipe connection is 1/2" female. I already had propane gas pipe in the shop. I used various elbows, cross, and 1/2" pipe lengths for initial plumbing. A union was used for the final connection. Exhaust vent was connected first and then the gas pipe was fitted. It is easier to make adjustments to the gas pipe than the exhaust venting. Once all connections were checked, the unit powered up, the appropriate green light flashed on the circuit board and the unit fired right up.
The only problem with the heater involved the two top burners were allowing flame to reach and burn the section between the heat tubes. A call to technical support (30 to 45 minute wait on a Monday) stated to pinch the two pieces of metal that form the burner closer together in the area involved which solved the problem. This would not please the average joe. It involved removing 6 screws that hold the panel that the circuit board is on and 4 screws that hold the two burners in place. It took me two time to get it right. I didn't mind as I like to tinker and I have an above average selection of tools.
The unit is quiet for a forced air heater. It works great and heats up my 1800 square foot workshop quickly. It took two weeks of various evenings and weekends at a leisurely pace to get it installed. This review is being written two weeks after installation so no comments on longevity. Good luck!
Click Here to see more reviews about: Mr. Heater Big Maxx 75,000 BTU Natural Gas Garage Unit Heater #MHU75NG
The MHU75NG is a propane fired, forced air convection heater. This unit is ideal when ceiling heights do not allow for infrared heaters to be used. It easily installs from the ceiling with included angle brackets. Unit has power exhaust which allows for both vertical or horizontal venting.Unit is thermostatically controlled and includesa spark ignition system with self diagnostic control module. This CSA certified heater will heat up to 1,000 square feet and comes with a three year limited warranty on the parts and the burner and a ten year warranty on the heat exchanger.
Buy cheap Mr. Heater Big Maxx 75,000 BTU Natural Gas Garage Unit Heater #MHU75NG now.
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