Container loads of Navien’s new NCB series combi-boilers have been shipping out of the company’s Irvine CA warehouse. 

Ideal for the energy conscious consumer, this space-saving unit represents a whole new category of condensing combination boilers. While small in size, 28-in. x 17-in. x 12-in., the NCB wall-hung combi-boiler is strong enough to heat a large home, and at the same time, supply it with more than enough domestic hot water for two showers and a dishwasher. It is engineered with similar contractor-friendly-features to Navien’s popular NPE tankless water heaters: ½-in. gas capability up to 24-ft. and low exhaust gas temperatures that allow use of PVC, CPVC, ULC-S636 and polypropylene vent systems, up to 60-ft. with 2-in. and 150-ft. with 3-in. 

With AFUE energy efficiency ratings of up to 93.6, Navien’s NCB has earned an ENERGY STAR label. 

To learn more about the NCB Series combi-boilers, visit