TK-540P-NEH Takagi 199,000 BTU Natural Gas Outdoor Condensing Ultra-Low NOx Tankless Water Heater The TK-540P-NEH heater integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. As part of the high efficiency tankless family, the 540P series provides endless hot water while being environmentally friendly.The TK-540P-NEH outdoor tankless water heater uses up to 199,000 BTU/hr of natural gas to deliver an endless supply of hot water for a 3 bath home in northern climates and a 4 bath home in southern climates. It is built with commercial grade materials like marine-grade 316L stainless steel giving it an industry-leading warranty.ENERGY STAR qualified15-year limited Heat Exchanger Warranty, 5-year parts warranty, 1-year labor warranty for Residential applications6-year limited Heat Exchanger Warranty, 5-year parts warranty, 1-year labor warranty for Commercial applicationsIntegrated Recirculation Pump - 1/2 in pipe - 100 ft; 3/4 in pipe - 500 ftPrimary heat exchanger is constructed of a commercial grade copper that is more resilient to erosion.Secondary heat exchanger is made of type 316L stainless steel to protect against corrosion.Complies with SCAQMD 1146.2 Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)Easy-Link with up to three other T-H3 units to increase flow capacityCondensing Outdoor modelSafety features include Air-Fuel ratio (AFR) sensor, freeze protection, overheat cut-off fuse, exhaust & water temperature safety control, and troubleshooting diagnostic codes Tech Specs :Emissions: Ultra-Low NOxMaximum BTUs: 199,000Minimum BTUs: 19,500Water Connection Location: BottomWater Connection: 3/4 inFlow Rate: 10.00Heat Exchanger: Commercial Grade CopperVoltage: AC 120VUEF: 0.90LEED Rating: 1.5Height: 23.63 inWidth: 17.75 inDepth: 11.25 inProduct Weight: 70 lbs.Vent Type: Direct VentVent Size: 3 or 4 in
