Why have your used ... oil – except that it actually contains more energy. Its Btu content per gallon is 150,000 versus 138,000 for furnace oil. When considering a waste oil-fired heater ...

Reznor has added Models RA-250 and RAD-250 waste oil heaters to its line of products designed for recycling used oils into free shop heat. The Model RA is a standard unit space heater while the ...