NAVIEN

KD Navien Gas Water Heater, Advanced, Condensing, High Efficiency, Tankless, Series: NPE, 19900 - 199900 BtuH Heating, Natural Gas, Liquid Propane, 3/4 Inch NPT Gas Connection, Electronic Ignition, 11.2 gpm at 35 deg F, 8.7 gpm at 45 deg F, 5.6 gpm at 67 deg F, 0.96% Energy Efficient, Wall Mount, 3/4 Inch NPT Water Connection, Carbon Steel, 27.4 Inch H x 17.3 Inch W x 13.2 Inch D, Includes: ComfortFlow® Internal Pump and Buffer Tank Direct Vent

• 1/2 Inch gas pipe capable up to 24 Inch cuts installation time, no need to install new gas lines for retrofit applications
• Field convertible gas system
• Ultra condensing efficiency
• Dual stainless steel heat exchangers resist corrosion better than copper to provide longer life
• Low NOx emissions (20 ppm)
• SCH 40, 2 Inch venting up to 60 ft-low exhaust gas temps allows use of PVC, CPVC, System 636 and polypropylene vent systems, saving time and money
• Cascading capable
• User-friendly, advanced controls-easy set up diagnostic control system displays temperature, water flow rate, cascading operations and much more
• NPE ComfortFlow® patented internal recirculation system includes built-in recir pump and insulated buffer tank, no need for costly external parts, no more "cold water sandwich" effect and no minimal flow rate issues
• ComfortFlow® recirculates hot water through supply lines, eliminating wait time for hot water
• Replace inefficient tank heaters, saving water, natural gas and electricity with added benefits of endless supply of hot water, lower maintenance costs and longer product life
• Indoor or outdoor wall hung installation
• Forced draft direct vent
• 15 - 150 psi water pressure
• 3.5 - 10.5 Inch WC natural gas supply pressure
• 8 - 13 Inch WC propane gas supply pressure
• 120 VAC, 60 Hz main supply
• 200 W (max 2 A), 350 W (max 4 A) with external pump connected maximum power consumption
• 0 Inch to combustibles vent clearances
• 2 or 3 Inch PVC, CPVC, PP, SS/2 or 3 Inch special gas vent type BH (Class II, A/B/C) exhaust and intake vent

• Catalog https://www.cpesupply.com//ASSETS/DOCUMENTS/ITEMS/EN/KD_Navien_NPE_210A2_Catalog.pdf