VEVOR Diesel Air Heater, 8 kW DC12-24V, Fast Heating Diesel Parking Heater with Remote Control and Color Digital Display, 10L Fuel Tank, Low Noise, Voice Announcement, for RV, Truck, Boat and Trailer
The oil pump frequency and fan speed cannot be set separately. They have been set before leaving the factory. When the gear or temperature is set, the oil pump frequency and fan speed are automatically adjusted.