Rheem RHBH-FT399

Rheem RHBH-FT399 appears in the U.S. EPA ENERGY STAR "Certified Commercial Boilers" dataset, which lists products whose manufacturers have certified them to the program's specification (record 4572698, certified 2026-03-24). EPA publishes these rated values for the listing: Full load input rate Btu hr 399; Reported thermal efficiency TE 96.50; Turndown ratio 9.00; Control type Multi-stage; Application Indoor. The listing records ENERGY STAR certification and the rated values the manufacturer reported to EPA. It is not a determination that any building, installation or design complies with a code.