Takagi TK-540P-NEH 540P Tankless Water Heater, Natural Gas Fuel, 199000 Btu/hr Heating, Indoor/Outdoor: Outdoor, Condensing/Non Condensing: Condensing, 10 gpm, 3 in and 4 in, 0.9, Commercial/Residential/Dual: Residential, Ultra Low NOx: Yes

Takagi Tankless Water Heater, Series: 540P, 199000 Btu/hr Heating, Natural Gas, 3/4 in NPT Gas Connection, Electronic Spark Ignition, 3 in and 4 in Vent, Condensing/Non condensing: Condensing, 10 gpm, Energy Factor: 0.9, 3/4 in NPT Water Connection, 4 to 10-1/2 in WC Gas/15 to 150 psi Water, 120 to 140 deg F, Ultra Low Nox: Yes, 316L Stainless Steel/Copper, Indoor/Outdoor: Outdoor, 17-3/4 in W x 11-1/4 in D, Commercial/Residential/Dual: Residential

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 199000 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. Number of showers this unit can handle, depending on ground water temperature.