Indirect Water Heater; Applicable Standard CSA; Inlet/Outlet Connection 3/4" Male Threaded x 3/4" Male Threaded; Relief Valve Details T and P Relief Valve Supplied; Tank Dimensions 25-1/4" Length x 73-1/2" Height; Tank Material Stainless Steel; Tank Capacity 18.2 Gallon; GPH Recovery 3.2 GPM at 70 Deg F (8 MIN Draw), 2.7 GPM at 70 Deg F (15 MIN Draw), 2.5 GPM at 70 Deg F (Continuous Draw); Boiler Supply/Return Connection 1" Male Threaded X 1" Male Threaded; Inclusions/Features Thermostatic Mixing Valve, Drain Valve, Speed Circulator, (2) 1" Stainless Steel Flexible Connection Hose, Leveling Legs, (2) Tank Temperature Sensor, Wire Harness and Plug