Refleks 61 Series 61MSF Oil Stove for Ships, Stainless Steel, 19,750 BTUs, 715MM H x 345mm W. Includes fresh air intake and copper coil to connect to radiators. Diesel oil or kerosene, most efficient at "half-throttle". Low fuel consumption, reliable and efficient. Requires 90mm stovepipe, 90/114mm insulated.