VIESSMANN® Indirect Fired Water Heater Tank, Model: 300-V EVIB 42, 42 gal Capacity, 14 gpm Flow Rate, 223 gph First Hour Delivery, 0.8 deg F/hr Standby Loss, Self Vent, MNPT Connection, 220 psi, Continuous Draw: 189 gph, 34 gal First Draw, 11 sq-ft Heating Surface, 1.95 gal Heating Water Capacity, Stainless Steel, Finish: Epoxy-Coated, White, 392 deg F, 25 in L x 26 in W x 47 in H, Additional Information: 3/4 in Cold Water Inlet Connection, 1 in MNPT Boiler Inlet/Outlet Connection, Polyurethane Insulation