Select models incorporate the following features (check individual model specifications):
Defender system (gas only) - advanced FVIR (Flammable Vapor Ignition Resistant) technology with ScreenLok flame arrestor prevents ignition of flammable vapors outside the combustion chamber.
ICON (gas only) - intelligent gas control system with piezo igniter developed by Honeywell. It does not require external power supply and works on millivolt technology (converts heat from flame to electricity), provides higher 1st hour delivery & lower temperature differentials. It also has an external LED for easier diagnostics and troubleshooting.
Vitraglas coating - tough enamel coating protects the steel tank from corrosive effects of hot water.
Hydrojet dip tube - engineered to create turbulence in the tank to reduce sediment build-up, ensure a more thorough mix of hot and cold water, and provide increased hot water delivery. It also helps to increase the lifespan of the water heater.
Heat trap inserts - cold water inlet (dip tube) has a thermoplastic ball which is lighter than water and in the absence of the water flow will rise to seal off the inlet; hot water outlet (dip tube) has a heavier-than-water ball which sinks to seal the outlet in the absence of flow. This feature allows to minimize heat loss when water heater is in standy-by mode (not in use).