Espar Airtronic D2- 12v Van Heater. This Espar Heater is compatible with all Mercedes Sprinter, Dodge Sprinter, Freightliner Sprinter, Ford Transit, and RAM ProMaster Vans. NOTE: ALL ESPAR ORDERS WILL SHIP WITHIN 30 DAYS OF SUBMITTAL Specifications: Voltage: 12 Volts Fuel Type: Diesel. Low: 2,900 BTU (.85kW) Medium: 4,100 BTU (1.2kW) H-Kit