Navien’s NCB-E Series combi-boilers are the first condensing combination boilers capable of delivering hydronic heat and unlimited domestic hot water for large homes. Offered in four models: the NCB-150E, NCB-180E, NCB-210E and NCB-240E. Navien notes the NCB-240E model delivers the highest combined heating capacity and domestic hot-water capacity in the industry, heating up to 120,000 Btu/hr., and DHW up to 199,000
Btu/hr. Easy installation with 1/2” gas connections and
2” PVC venting.