Standard:
*Flame Failure Protection.
*Over Heat Protection.
*Anti-dry Burning Protection.
*Pressure Relief Protection.
Optional:
*Oxygen Depletion Protection.
*Anti-downdraught Protection.
*Low Water Pressure Start Up.
*Winter-Summer Switch.
*20 Minutes Timer.
*Temperature Display.
*Low Battery Indication.
*Hot/Cold ON/OFF Water Switch.
*Single/Double Solenoid Valves.
Available:
*Oxygen Free Copper Heat Exchanger