The Scandia Ultra Sauna Heater models 15240 and 15208 are engineered for those who demand the highest quality and reliability in their sauna heating systems. Designed to effectively heat large sauna rooms up to 1,428 cubic feet, these powerful heaters are constructed entirely from stainless steel, including the element channels, which are made from spec 321 jet engine stainless steel for superior durability. Manufactured in the USA, these heaters feature an innovative steamer tray that ensures 100% vaporization, keeping the elements dry and extending their lifespan. The inclusion of high-density imported rocks further enhances heat retention, providing a consistently warm and immersive sauna experience.