"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 4 kW, this heater is cULus and UL EPH Classified. It also meets ANSI/NSF 4 standards. The patented ""free-flow"" technology of the FR2 models allows for responsive and efficient operation. It can heat or hold foods at temperatures between 140°F to 190°F. The electronic controller with a digital display maintains an accurate setpoint temperature. The unit includes a tubular water chamber with a spiral heating element wrapped outside the flow tube to prevent direct contact with the water. It also has 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 for food rethermalizing but needs to be incorporated into a hot water bath rethermalizer system. Hatco does not supply the 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 testing and listing the entire rethermalizing appliance according to NSF Standard 4."