One used Electro-Steam LB Series Steam Generator, Model LB-40, 316L Stainless Steel. Approximate 40 kw, 4.0 boiler hp, 138 pounds an hour steam capacity at 212 degrees F. Gross BTU output 133,900. XP Design. Mounted on a stainless steel base with casters. National Board# 27798, serial# 37798, built 2005.