Shipping underway for new condensing boiler series

December 12, 2014 By    

Navien began to ship its NHB wall-hung condensing gas boilers, which the company says are designed for residential and light commercial use. According to Navien, NHB boilers are available in four sizes – NHB-55, NHB-80, NHB-110 and NHB-150, with respective turndown ratios of 7-to-1, 10-to-1, 11-to-1 and 15-to-1. The company says the 15-to-1 turndown ratio in the NHB-150 is achieved with an advanced burner system. A dual Venturi gas delivery system helps to deliver that ratio, Navien adds.

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