Bradford White® Defender Safety System® Gas Water Heater, 40000 Btu/hr Heating, Natural Gas, 1/2 in Gas Connection, 50 gal Tank, Piezo Ignition, Atmospheric Vent, 3 x 4 in Vent, 42 gph at 90 deg F Recovery, Energy Factor: 0.78, 3/4 in NPT Water Connection, 150 psi, Ultra Low Nox: No, 59-5/8 in H, Domestic
These water heaters utilize a draft diverter and are atmospherically vented with capacities ranging from 29 to 60 gallons and inputs ranging from 30000 to 50000 Btu/hr These models are perfect for many standard water heating applications.