For sale Mr Heater Contractor Series. 50,000 BTU. Needs maintained. I can run on kerosene 1 and 2, diesel 1 and 2, home heating oil, JP-8 and Biodiesel blends B2, B5, B10 and B20. Its worth tinkering with or using it for parts. Either way can’t beat the price. Retails for $300 plus.