Because this is an air-cooled unit, we needed a special way to heat the filter and tank. The coolant heater was ordered for the conversion. It's a 1500 watt unit by Kats
, as seen here, and typically costs less than $40. This will circulate coolant through the heated fuel filter and the heat exchanger in the 55 gallon veggie drum. The heat exchanger in the drum is a standard under dash heater core
(about $30), and the filter is a Frybrid
item, that sells for about $165.