Bosch’s condensing technology means that more heat is captured and from exhaust gasses that would normally be lost into the atmosphere.
This makes a more efficient and environmentally friendly hot water system.
The Bosch Condensing C21 ill deliver hot water to your taps at a rate of 21litres per minutes at a rise of 25°C. The secondary heat is captured in a second heat exchanger situated within the unit and is then used to preheat the next flow of incoming cold water. This condensing technology makes this continuous flow hot water heater one of the most energy efficient on the market today, reflected in its 6.7 star energy rating.