These compact generators boast the following: Built in accordance with ASME, UL, and CSA requirements National Board of PVI Shop Inspected Safer than fuel fired units Automatic point-of-service use Direct connectivity to standard utilities at time of installation 98% efficient resulting in energy and water conservation Low or high pressure dry steam in less than 15 minutes (or on demand) A one year warranty on all parts and five year warranty on the chamber National Board of PVI Shop Inspected, ASME, UL Options 316L Stainless Steel on all Wetted Surfaces Motorized Automatic Flush and Drain Indirect Steam-to-Steam Condensate Return System Operating Pressure Above 100 PSIG (Carbon Steel) Explosion Proof Dual Operating Pressures Water Filter - 5 Micron CSA Certification