Mr. Steam Barrel Haus Collection Outdoor SaunaMr. Steam Barrel Haus Collection Outdoor Sauna The Barrel Haus Sauna is a classic Bavarian inspired design for all outdoor environments. This is a striking collection featuring barrel shaped saunas that blend seamlessly with nature while offering a unique sauna experience. Available in 4 and 6 person sized sauna rooms. 4 Person Barrel Haus comes with a glass door, a half moon rear glass window, and a wood push pull door handle. 6 Person Barrel Haus