The Harvia Legend 240 SL wood-fired sauna stove will give you the optimum sauna adventure due to the large amount of stones ensuring good heat. Heat your sauna from outside the building or another room. The fire chamber has an innovative grate structure that separates the combustion air. It can be fitted with a pipe-mounted water heater and it heats rooms from 353 to 848 cubic feet (CF). Required sauna stones 440 lbs (10 boxes) sold separately. For sauna rooms from 353 to 848 cu. ft. Requires a minimum of 440lbs of stones (10 boxes-AC3020)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). 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). Designed, engineered, and made in Finland Dimensions: 23.6" W (600mm) x 30.7" D (780mm) x 32.7" H (830mm) Installation and operation manual Requires a minimum of 440lbs of stones (10 Boxes-AC3020)