Tankless Hot Water Installation

We recently installed a Tankless Hot Water System (Navien NPE240A2) in a 4500 sq ft home with 4 full baths. A new 3/4″ re-circulation line was also installed. The home… We recently installed a Tankless Hot Water System (Navien NPE240A2) in a 4500 sq ft home with 4 full baths. A new 3/4″ re-circulation line was also installed. The home…Read MoreGreenBuildingAdvisor