With its classic design, even heat, and efficient air circulation, the Harvia M3 Sauna Stove can turn smaller saunas into a rustic getaway. The Harvia M3 provides the quintessential traditional sauna ambiance. The crackling fire and radiant heat create a sense of relaxation and a connection to nature. Required sauna stones 66 lbs (2 boxes) sold separately. Stainless steel air-flow spoiler Designed, engineered, and made in Finland For sauna rooms from 212 to 459 cu. ft.