Specifications include, but are not limited to:Specifications for Water Heater: 50 gallon capacity water heater Must be gas fired Design-certified by UL (Underwriter’s Laboratories) according to ANSI 221.10.3 –CSA Standards Must meet the thermal efficiency and standby loss requirement of the U.S. Department of Energy and current edition of ASHRAE/IESNA 90.1 Include six (6) year limited tank and parts warranty BTU input per hour – 76,000 First hour delivery gallons/litres – 127/481 Recovery 90F Rise gallons per hour Inlet and outlet connections: ¾” male Circulation loop connections: ¾” female Natural gas only Helical Internal Heat Exchanger Power Vents using PVC Pipe Modular blower – equipped with 120 volt, 60 Hz electrical system (rating 5 amps or less), 6-foot cord with standard 3-prong connector 2: PVC pipe, elbows and condensate drain supplied to connect heat exchanger outlet to blower Side-mounted hot and cold recirculating taps No standing pilot Easy to understand system diagnostics Commercial grade glass lining Two heavy-duty anode rods CSA certified and ASME rated T&P relief valve Maximum hydrostatic working pressure: 150PSI 110F outlet temperature