Lochinvar® Gas Water Heater, Multi-Flue Charger, Series: CGN, 365000 Btu/hr Heating, Natural Gas, 3/4 in Gas Connection, 85 gal Tank, Spark Ignition, 8 in Vent Size, 354 gph at 100 deg F Rise Recovery, 80 % Energy Efficient, 1-1/2 in Water Connection, 150 psi, 180 deg F, Ultra Low NOx: No, ASME Yes/No: Yes, Glass Lined Steel, 27-3/4 in Dia x 79-1/2 in H