I purchased this heater to heat my shop approximately 480 square feet. It is very effective for heating an immediate area but not the entire shop. It was easy to set up and get fired up except with a couple issues that I didn_ mind correcting.The controller is junk, all the videos on how to prime the fuel pump did not work for this controller, I had to build a plug for the pump and manually tap it on the battery to get it to prime.Out of the box the fan rotor was jammed against the sensor box and not rotating. This was caused by manufacturer pressed the fan on too far. I was able to correct this by holding the entire assembly up by the fan blades and gently tapping on the man shaft until free movement achieved.Fuel consumption is minimal for the amount of heat output. With 9 solid hours of running it got my shop from 16 degrees Fahrenheit to 38 degrees. Not bad for the size of the area I was trying to heat. It only burned 1 gallon during that 9 hour run time. I will be purchasing a second unit when one becomes available. So far aside from the minor issues out of the box it_ been a great heater and would suggest it for anyone with a little mechanical knowledge.
Christopher 
