The Cozy Heat OG Through-Wall Sauna Stove Package comes complete with the Cozy OG Through-Wall Sauna Stove and Sauna Stones. Cozy Heat has taken the time-honored craft of building sauna stoves to a higher level. This wood-fired sauna stove is handmade in Estonia, where sauna bathing is a national tradition. The clever design of the Cozy OG TW lets you load firewood from outside your sauna. Wood-burning sauna stoves produce a mild and long-lasting heat and are designed for pouring water over hot stones to create your perfect amount of steam. The part of the wood-burning heater that must be the strongest, the flame cutter, is made of sturdy, 5mm-thick stainless steel making Cozy heaters extremely durable. Cozy wood-fired sauna stoves are engineered for maximum efficiency and environmental sustainability. These stoves achieve exceptional combustion efficiency resulting in lower emissions and reduced firewood consumption of 25-40%, which has earned all Cozy sauna stoves Germany's highest certification standard, EN 15821:2010, BlmSchV DIN EN 13240, level 2. Cozy OG Through-Wall Sauna Stove Stove utilizes 25-40% less fuel than comparable sauna stoves Boasts minimal safety distances Designed and engineered in Estonia Stone requirements:12kW- Minimum of 175 lbs of stones18kW- Minimum of 240 lbs of stonesPlease 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). 12kW- Minimum of 175 lbs of stones 18kW- Minimum of 240 lbs of stonesPlease 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). It arrives on a wooden pallet and is encased in three-ply cardboard for solid protection. The driver is responsible for "delivery only" and will provide limited assistance at the site. Prior to shipping, we may contact customers to share shipment details and needs and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project's success. Consider adding accessories to sauna heater orders to bolster margins.