KD Navien® Tankless Gas Water Heater, High Efficiency Premium Standard, Series: NPE-S2 Series, 18000 to 120000 Btu/hr Heating, Natural Gas/Liquid Propane Fuel, 3/4 in NPT Gas Connection, Electronic Ignition, Forced Draft Direct Vent, 2 in Vent, Condensing Condensing/Non Condensing, 6.8 gpm at 35 deg F Flow Rate, 0.96 Energy Factor, Wall-Hung Mounting, 3/4 in NPT Water Connection, 15 to 150 psi Pressure, 97 to 185 deg F, Ultra Low Nox: No, Cold Rolled Carbon Steel, Indoor/Outdoor Indoor/Outdoor, White, 17.3 in W x 13.2 in D x 27.4 in H Dimensions, Dual
KD Navien® NPE-2 Series condensing Tankless Water Heaters are advanced water heaters with multi-line control panels with startup wizard and intuitive controls offering ease of installation and troubleshooting. A2 models offer built-in recirculation pump and buffer tank, reducing waiting time for hot water. NPE-2 units can be cascaded up to 32 unit and can vent up 75 ft with 2 in venting.