Big thanks to another reviewer who pointed out you have to hold the up and down arrows to prime the pump. The instructions were mostly incomprehensible. Watch a few youtube videos before installing.Tips: Use a 5 gallon yellow diesel can instead of the included tank that you have to drill and may or may not leak. You can buy sheets of fuel safe gasket material to insert in the gas can screw on ring (take out the nozzle), poke a hole in it, and send the fuel line to the bottom of the can.Wrap the exhaust in fiberglass heat shielding or similar if you're running it close to anything.It's not loud even without the included "muffler". The fuel pump does produce a clicking/tapping sound so keep that in mind when mounting.Don't get the four vent model expecting it to come with enough ducting. You'll have to jury-rig something. Some dryer vent hose is high temperature enough.The unit will burn through a 5 gallon can of diesel within 48 hours if left running. Hard to know how it compares for cost efficiency versus a propane heater.If you're tying this into another 12v circuit on a camper, it can make lights flicker every time the fuel pump fires (maybe every half to 3/4 of a second). While the amp draw isn't crazy, maybe 6 to 8a, the instantaneous on/off is noticeable when there are lights on the same circuit.Overall I'm pleased with this heater. Just make sure to watch some videos and be prepare to improvise.
Trudy Hendricks 
