CombiSave is a thermostatically controlled valve made from de-zincification resistant brass. It is fitted with two rotatable elbows, which allows ease of fitting to a range of 15mm pipe configurations. All nuts and olives required for fitting are supplied along with a fitting guide and instructions. By controlling the flow of water during the initial firing process, the CombiSave accelerates the heating of water and reduces the amount of fuel needed in the process. The CombiSave can even be fitted to older models, so it’s a great way of making your home more energy efficient without buying a brand new combi-boiler. When the hot tap is turned on, the CombiSave reduces the flow of water until it has reached a set temperature. At this point, the valve opens fully and allows the hot water to flow throughout the system. CombiSave will save an average of 8 litres of water every time the tap is turned on from cold.