Company: Navien Inc.

Product: Navien Heating Boiler

Description: The Navien Heating Boiler (NHB) Series is available in four wall-hung sizes — NHB-55, NHB-80, NHB 110, and NHB-150, with turn-down ratios, respectively, of 7:1, 10:1, 11:1, and 15:1. The 15:1 time delay relay (TDR) in the NHB-150 is achieved with Navien’s advanced burner system. One key component to efficiency is the newly developed dual venturi gas-delivery system. With a number of smart control features, the NHB carries a U.S. Environmental Protection Agency (EPA) Energy Star 2015 Most Efficient rating and may be installed in both residential and light commercial situations.