Brand new heater starts promptly and generates a lot of heat, but unburned fuel (pump diesel) pumps straight through into exhaust pipe creating smoke (over priming?). Continues to dump fuel persistently into the exhaust (over-fueling) even after prolonged running, cleaning out exhaust, start/stop. No fuel leak detected but excessive heat inside of case melted the paint. Plastic tank would likely melt soon. Assembly was correct; these are really quite simple to set up. Before you comment, yes I did read the manual, and no it did not explain how to adjust ANY settings let alone pump speed, etc; it was useless. Power source was the 12V Jeep battery which has good voltage. Amazon accepted the return. Probably just got a bad one; I am open to trying another one. These heaters, clearly from the same manufacturer, are sold under several different names.
EDIT: it has been pointed out that if you enter the secret code 1688 you can access settings not described in the manual, including pump speed. Maybe that could have remedied this.
#shorts
