Vega Series 1.9kW Sauna Heater Package, Built-In Controls The Harvia Pro 20 SS WH Sauna Stove Package comes complete with the Pro 20 Sauna Stove, Protective Bedding, Protective Sheath, Chimney Kit, Chimney Extension, Water Heater, Smoke Pipe, and Sauna Stones. This stainless steel stove package offers a satisfying sauna bath experience for sauna rooms from 283 to 706 cubic feet (CF).