* Meet rigid requirements and nationally recognized testing standards, including UL * ASME steam pressure vessels built to the ASME Boiler and Pressure Vessel Code requirements and are National Board Registered * Use high quality fibrous glass pressure vessel insulation for maximum energy performance * Feature stainless steel heating elements for corrosion resistance with ASME grade flanges for longevity and reliable performance * Vertical construction results in small footprint for location within the tightest of mechanical rooms * Integrated base eliminates the need for a stand * Steam-rated operating and high limit pressure controls for Steam-On-Demand® * Features an integral pressure gauge and sight glass to provide operating information at a glance * Standard with a full port drain valve providing maximum draining of the pressure vessel * Available with Auto Flush® automatic blow down system featuring electronically controlled maintenance and 24 hour/7 day programming * Equipped with hinged access door for ease of installation and service * Backed by Mr. Steam's limited warranty for commercial steam bath generators, copy available prior to purchasing