Bradford White® Tankless Condensing Gas Water Heater, Series: Infiniti® GS Series, Model: RTGS199, <2 gal Capacity, 199000 Btu/hr, 188 W, 0.5 to 9.7 gpm Flow Rate, 0.95 Energy Factor, 2.7 W Standby Loss, 2 in, 3 in Vent, Direct Vent, <2 A, 120 V, 60 Hz, 1 ph Phase, NPT Connection, 150 psi, Yes Energy Star Compliant, Wall Mounting, Propane Fuel, Automatic Flame Sensing Ignition System, Stainless Steel, Contains Lead, 14 to 140 deg F, 27.6 in H x 17.3 in W x 14.9 in D, 2000 ft Altitude, Additional Information: 3/4 in Connection Size, 11:1 Turndown Ratio, Standard Configuration