The 120V Harvia Vega 1.9kW is a modern and easy-to-use sauna heater that is engineered to power smaller sauna rooms up to 106 cubic feet. (CF) Required sauna stones 29 lbs (1 box) sold separately. For sauna rooms from 70 to 106 cu. ft. Requires a minimum of 29 lbs of sauna stones (1 Box-AC3000) Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (Additional freight charges will apply). Switches can be installed on the right or left side of the heater Designed, engineered, and made in Finland Dimensions: 11"W (279mm) x 11"D (279mm) x 21" (533mm) Manufacturer's Note:Sauna heater stones are significant to the unit's safety. Installation and operation manual