Navien’s NPE-A tankless water heater features ComfortFlow technology, which incorporates a built-in buffer tank and recirculation pump inside the unit so the cold-water sandwich is eliminated. It enables the contractor to enhance profitability with fewer added material costs. 

Additional NPE standard features include: dual stainless-steel heat exchangers; 1/2” gas lines up to 24’; and 2” PVC venting up to 60’. These technical advances make the NPE-A series ideal for commercial and residential tank water heater replacement, as well as new construction.