The gas hot water system has a unique condensing unit to capture heat from the exhaust gas, using it to preheat incoming cold water. A secondary heat exchanger within the appliance provides maximum efficiency, and the unit can be teamed with up to four temperature controllers.

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Shane Alcock from Bosch said that installation of this system is equivalent to taking one and a half cars off the road for an entire year, saving tonnes of greenhouse gas emissions and that the 26eco+ is 14 per cent more efficient than a standard domestic continuous flow hot water system.