My hot water is scalding in the summer but OK in the winter, what’s wrong?
This is probably caused by using two different sources for your hot water over the year. In winter the hot water will probably come from the central heating boiler which has a thermostat attached to it. This is usually set at about 60°C. However, during the summer many people switch the boiler off and rely on an immersion heater for the hot water. This should also be set at 60°C but could have been set at the factory at 80°C.
