Combi boilers in hard water areas are prone to scaling up in the heat exchanger for your hot water from the taps. Plumberparts reviews the CombiMate from Cistermiser, and shows you how you can reduce the amount of scale in a combi boiler or standard boiler.

This video looks at how to install one and how they work, and also show you how to change the pellets so you don’t get any leaks.

For more honest reviews and advice please visit www.plumberparts.co.uk