Takagi Tankless Water Heater, Series: 200, 190000 Btu/hr Heating, Liquid Propane/Natural Gas, 3/4 in NPT Gas Connection, Electronic Ignition, 4 in Vent, Condensing/Non Condensing: Non-Condensing, 8 gpm, 0.82, 3/4 in NPT Water Connection, 10.5 in WC, 35 deg F, Ultra Low NOx: Yes, Copper, Indoor/Outdoor: Outdoor, 20-1/2 in H x 13-3/4 in W x 9-1/2 in D, Commercial/Residential/Dual: Commercial/Residential

The compact TK-310U-E is a fully modulating, gas fired, non-condensing tankless water heater perfect for residential applications. It is field convertible from Natural Gas to Liquid Propane and with a maximum input of 190000 Btu/hr, the TK-310U-E can produce enough hot water for up to three bathrooms in warmer climates and it also complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm).