Takagi Tankless Water Heater, Series: H3, 199000 Btu/hr Heating, Natural Gas Fuel, 3/4 in MNPT Gas Connection, Electronic Spark Ignition, Direct/Power Vent, 4 in Vent, Condensing Condensing/Non Condensing, 10 gpm Flow Rate, 0.93, Wall Mounting, 3/4 in MNPT Water Connection, 4 to 10-1/2 in WC Gas/15 to 150 psi Water Pressure, Yes Ultra Low NOx, 316L Stainless Steel/Copper, Indoor Indoor/Outdoor, 17-3/4 in W x 11-1/4 in D, Commercial/Residential
Primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steelSecondary heat exchanger utilizes 316L stainless steel for better corrosion resistanceEasy-link up to 4 units without a multi-unit controllerMulti-Link up to 20 units with a multi-unit controllerNumber of showers unit can handle, depending on ground water temperatureVenting with SCH 40/STD PVC, CPVC, PP, category III stainless steelSafety features include freeze, overheat, surge protection and troubleshooting diagnostic codesIntegrated temperature controller and advanced diagnosticsComplies with ultra-low NOx regulations of less than 14 ng/J