Fuel oil preheaters are suitable for use with heavy or waste oil fuels. They are available in a variety of sizes in two models. Prewired, UL-listed controls and E.T.L-listed elements with a five-year warranty are standard. The manufacturer says the preheaters eliminate dangerous coking at less than 10 W/in²; are easy to install; and have with removable tubes for cleaning.
Process Heating Co., (866) 682-1582