Navien has announced the expansion of their premium condensing tankless NPE water heater series with the addition of the NPE-150S model. This smaller size “S”, Standard version, with an efficiency of 0.97 EF, has a heating capacity of 18,000-120,000 Btu/h and will produce 5.3 gpm at 45° temperature rise. The NPE-150S has all of  the best condensing technology: 1/2" gas pipe capability, 2" PVC venting up to 60', dual stainless steel heat exchangers, an integrated and easy to use control, field gas convertibility, cascade capability without an external control and an industry leading warranty. 

Manufacturer Name: Navien