Proheat Heavy Duty Fluid Reservoir Heater Model 512csa (250 Watts, 2.1 Amp, 120 Volts) Ideal for Oil Pans from 1 to 3 Gallon of Lube (4.5 to 12 Litres) and up to 10 to 30 Gallons of Hydraulic Oil Proheat 512 Reservior Heater, 250w, 12v