Bradford White ICON System Features - High Input Combustion System - Integrated Mixing Device - Factory installed Hydrojet 2 Total Performance System - Powerful blower motor - Horizontal and vertical venting - Honeywell Self Diagnostic Electronic Control - Flammable vapor sensor (not FVIR) - Spark to Pilot ignition system - Vitraglas; lining - 3/4" NPT side connections - Non-CFC Foam Insulation - 3/4" NPT factory installed dielectric waterway fittings - Two Protective magnesium anode rods - Helical Fin Flue - Pedestal base - T&P relief valve installed - Brass drain valve