Wood Burning Sauna Heater Firewood Sauna Stove with Flue Kit HARVIA M3 16.5 kWClassic Finnish Design for Small to Medium Saunas The Harvia M3 is a traditional wood burning sauna heater designed to deliver an authentic Finnish sauna experience. With its 16. 5kW output, its ideal for sauna rooms ranging from 6 to 13 cubic meters. The heater features a sleek graphite black finish, a stainless steel air flow spoiler, and a glass door that allows the warm glow of the fire to enhance the sauna atmosphere. Its efficient design ensures