The NCB Series combi-boilers are condensing combination boilers capable of delivering plentiful hydronic heat and unlimited domestic hot water for large homes. The combi-boilers are offered in three ...

IRVINE, Calif. (CBS) – Navien condensing tankless water heaters and combination boilers are being recalled because they could potentially produce poisonous levels of carbon monoxide.

This recall involves only Navien condensing tankless water heaters and combination boilers with model numbers NPE-180A, NPE-180S and NCB-180E that have been or will be converted from using natural gas ...