Navien Premium NPE
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Exclusive Comfort technology (with buffer tank & recirculating pump) and 0.97 EF. With the industry's highest rated Tankless made simple high-efficiency models...

Now with two ways to make tankless water heating easy to sell, easy to install The Navien NPE series has become the industry leader for condensing tankless technology. They feature... • Advanced condensing • Dual stainless steel heat exchangers • Cascading capability for more than 4 units without a separate controller • ComfortFlow™ technology (Internal buffer tank and recirculating pump) on NPE-A models Cuts installation time in half Thanks to using V2" gas connections Navien tankless water heater in about half the time as competitive tankless heaters — about the same time as a traditional...

Connection Size Recirculation Inlet (A model) Q Cold Water Inlet Condensate Outlet Connection Size Flow rate Installation type Venting type Water pressure Natural gas supply pressure (from source) Propane gas supply pressure (from source) Natural gas manifold pressure Propane gas manifold pressure Minimum flow rate Cold water inlet Main supply Maximum power Heat exchangers Vent clearances Indoor or outdoor wall-hung Forced draft direct vent Electronic ignition 3/4" N PT (suitable for use with 1/2" rigid gas pipe; refer to installation manual for sizing criteria) 200W (max 2A), 350W (max 4A)...