Cozy 12 O Wood Burning Sauna Heater – 12kW Firewood Sauna StoveMild, Long Lasting Heat for 613 m Saunas The Cozy 12 O is a wood burning sauna heater engineered for gentle, enduring warmth and rich steam. Designed for throwing water onto stones, it delivers the classic sauna feel while keeping comfort front and center. Suitable for sauna rooms of 613 m, this 12 kW class stove is built by specialists with generations of know how in Estonia and tested to European standards for clean, efficient performance. Why