The Hatco FR-4B 4.5kW bain marie heater is a high-performance solution for commercial kitchens and restaurants needing precise food rethermalization. Designed for use with holding vessels, this 208V 3-phase rethermalizer delivers a constant hot water supply, maintaining temperatures between 140 and 190°F to meet food safety regulations. Its permanently submerged heating element maximizes heat transfer, while continuous water circulation eliminates cold spots, ensuring even heating for large batches of precooked foods. The energy cutoff system automatically shuts off the unit if temperatures rise unexpectedly, providing an added layer of safety. Perfect for buffet lines, catering operations, and high-volume food service, the FR-4B is built to handle the demands of commercial kitchens with durability and efficiency. With a 1-year parts and labor warranty and a 5-year tank warranty, it’s a cost-effective investment for businesses prioritizing reliability and performance.