&amp;lt;p&amp;gt;&amp;lt;span style=&amp;quot;font-size: x-small; color: #000000;&amp;quot;&amp;gt; Foremost in sauna heater design, overall performance and durability, Steamist heaters generate gentle, penetrating heat. Wall-mount exterior programmable time and temperature control with fan and light switch allows for preheat functionality up to 12 hours in advance of sauna bathing.  A large, deep rock container maximizes contact between the rocks and the heating elements for safe, efficient heating. Triple-wall construction provides added insulation and safety. Optimum airflow, heat retention and humidity control are derived from surface contact in the chamber between the stainless steel heating elements and igneous stones. This combination of design features result in quick, humidity-rich, unwavering heating performance while maintaining safety with a cool exterior.  For home use or smaller commercial sauna rooms . . . with stainless steel heating elements, stainless steel interior and exterior, and triple-wall construction for a cool-to-touch surface. Universal mounting brackets allow for flat wall or corner installation.&amp;lt;/span&amp;gt;&amp;lt;/p&amp;gt;