Standard Features - Advanced ScreenLok Technology Flame Arrestor Design - Flammable vapor sensor - Pedestal base - Maintenance free - Sight Window - Powerful blower motor - 3/4" NPT factory installed dielectric waterway fittings - Power Vented Water Heater - Spark to pilot ignition system - Horizontal and Vertical Venting - Vitraglas lining - Protective magnesium anode rod - Factory installed Hydrojet Total Performance System - 2" Non-CFC Foam Insulation - Honeywell Self Diagnostic Electronic Control - Low restriction brass drain valve - T&P relief valve included