Takagi Tankless Water Heater, Series: H3S, 180000 Btu/hr Heating, Natural Gas Fuel, 3/4 in NPT Gas Connection, Electronic Ignition, Direct/Power Vent, 4 in Vent, Condensing Condensing/Non Condensing, 8 gpm Flow Rate, 0.95, Wall Mounting, 3/4 in NPT 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 10-3/4 in D x 22-1/2 in H, Commercial/Residential

The T-H3S-DV-N supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks, recirculation systems, hydronic heating systems, radiant floor systems and/or domestic and heating applications. The T-H3S is a high efficient, condensing, tankless water heater perfect for residential applications. With gas inputs of 180000 Btu, the T-H3S can produce enough hot water for three bathrooms in warmer climates or two baths in colder climates.