Duratherm Resetable Immersion Heater Thermostat 7 Inch 49020307

This thermostat is very easy to fit and can be easily set to the required temperature. From experience it is also very durable and lasts for many years,

Perfect. You must check the length of these before you but as uk immersion vary

Item arrived quickly and was identical to the one I was replacing, have not fitted it yet but the length was correct

Great product value for money fast delivery

Our 'economy seven' electricity supply is used overnight to heat a lagged water cylinder fitted with an immersion heater. This thermostat is essential to turn off the circuit when the tank water temperature is high enough [if left on it would boil which is a rather scary event]. Thus it is important that it functions correctly and this does indeed switch off suitably. The reason for the four stars is that, for no reason I can trace, it sometimes trips its inconspicuous reset button which means we have a day without hot water until the button is pressed.

Hot water was coming out the tap like lava. The old thermostat had packed in and the boiler was essentially boiling the water 24/7. Two wires to change, push in and done. Easy.

Exactly as described

Bought this to replace a Backer thermostat, which had given up the ghost after 15 years of reliable service. Within a couple of weeks, I noticed the water was starting to fluctuate daily (I heat all my water over night on economy 7). Last week, the water was stone cold and on testing the thermostat, it had failed and permanently open circuit, after just 6 weeks of use. I have replaced it with a Backer, which was more than twice the price, but hopefully will last as long as the original.