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Navien introduces the NCB Series combiboilers, the first condensing combination boilers capable of simultaneously delivering plentiful hydronic heat and unlimited domestic hot water for large homes, including those in cold climates. They take up as much as 80% less space than a traditional floor-standing boiler and water heater. The boilers are offered in three models (NCB 180, 210 and 240) with maximum heating input for hydronic heating at 80,000 Btu/hr., 100,000 Btu/hr. and 120,000 Btu/hr., respectively. Domestic hot water flow rates for each model at 77 Delta T are 3.4 gpm, 4.0 gpm and 4.5 gpm, respectively.
