Bradford White® Defender Safety System® RG2DV50S6N-FLX Gas Water Heater, 42000 Btu/hr Heating, 50 gal Tank, Natural Gas Fuel, Direct Vent, 45 gph at 90 deg F Recovery, Ultra Low NOx: No, Domestic

Bradford White® Defender Safety System® Gas Water Heater, 42000 Btu/hr Heating, Natural Gas, 1/2 in Gas Connection, 50 gal Tank, Piezo Ignition, Direct Vent, 5 in Vent, 45 gph at 90 deg F Recovery, Energy Factor: 0.64, 3/4 in NPT Water Connection, 4 in WC, Ultra Low Nox: No, 31 in D x 72-1/2 in H, Domestic

Direct Vent water heaters utilize a co-axial (pipe inside a pipe) vent pipe that takes air in from the outside (outer vent) and vents combustion gases directly back to the outside (outer vent). It is the perfect choice for situations with insufficient combustion air. No electricity required.