"The Hydro-Heater Food Rethermalizer/Bain Marie Heater is an electric appliance made in the USA. It features a stainless steel front and a powder coated body for durability. The low water cut-off system and electronic temperature monitor ensure safe and accurate heating. With a power of 3kW, this heater is cULus and UL EPH Classified. It is also ANSI/NSF 4 certified. The FR2 models of the Hydro-Heater Food Rethermalizer/Bain Marie Heater use ""free-flow"" technology to efficiently heat or hold foods at temperatures between 140°F to 190°F. The electronic controller with digital display allows for precise temperature control. The unit also includes a convenient drain outlet and clean-out caps. Optional features include an auto-fill solenoid, remote mounted control, all stainless steel body and base, and a security package with Torx® screws and control cover. Accessories such as a flush kit for cleaning are also available. It is important to note that the Hatco FR2 series Hydro-Heater is designed to be used for food rethermalizing, but it needs to be incorporated into a hot water bath rethermalizer system. Hatco does not supply the water vessel or the system for holding the food. The FR2 unit attaches to the bottom of the vessel and supplies hot water. The vessel manufacturer is responsible for ensuring that the entire rethermalizing appliance meets NSF Standard 4 requirements."