![Secure Meters ECONOMY7QUARTZ2HOUR Horstmann 24 Hour Mechanical Quartz Controlled Economy 7 Immersion Heater Timer With 2 Hour Boost 3kW 13A 240V - Internet Electrical Secure Meters ECONOMY7QUARTZ2HOUR Horstmann 24 Hour Mechanical Quartz Controlled Economy 7 Immersion Heater Timer With 2 Hour Boost 3kW 13A 240V - Internet Electrical](https://www.internet-electrical.co.uk/42376-large_default/horstmann-economy7quartz2hour-24-hour-mechanical-quartz-controlled-economy-7-immersion-heater-timer-with-2-hour-boost-3kw-13a-240v.jpg)
Secure Meters ECONOMY7QUARTZ2HOUR Horstmann 24 Hour Mechanical Quartz Controlled Economy 7 Immersion Heater Timer With 2 Hour Boost 3kW 13A 240V - Internet Electrical
![Needing help re immersion heater. I don't know what switch to switch off (no gas, only electricity) I also have a water booster in the kitchen. Thanks : r/DIYUK Needing help re immersion heater. I don't know what switch to switch off (no gas, only electricity) I also have a water booster in the kitchen. Thanks : r/DIYUK](https://i.redd.it/aoipf9ouwpi71.jpg)
Needing help re immersion heater. I don't know what switch to switch off (no gas, only electricity) I also have a water booster in the kitchen. Thanks : r/DIYUK
![Horstmann E7QUARTZ Economy 7 Quartz Electro-Mechanical Immersion Heater Controller With Integral Timer & 60 Minute Boost - Shop4 Electrical Horstmann E7QUARTZ Economy 7 Quartz Electro-Mechanical Immersion Heater Controller With Integral Timer & 60 Minute Boost - Shop4 Electrical](https://www.discount-electrical.co.uk/4118-tm_large_default/horstmann-e7quartz-economy-7-quartz-electro-mechanical-immersion-heater-controller-with-integral-timer---60-minute-boost.jpg)
Horstmann E7QUARTZ Economy 7 Quartz Electro-Mechanical Immersion Heater Controller With Integral Timer & 60 Minute Boost - Shop4 Electrical
![ECONOMY 7 QTZ 1 HR Secure Economy 7 Quartz Immersion Heater Control, 0°C to 35°C, IP30, White | YESSS Electrical ECONOMY 7 QTZ 1 HR Secure Economy 7 Quartz Immersion Heater Control, 0°C to 35°C, IP30, White | YESSS Electrical](https://cdn.yesss.co.uk/resized/1915068_01_ECONOMY7QTZ1HR_Image1_2d7a679e71b50a60a86117ccaaa6f25e/424/1915068_01_ECONOMY7QTZ1HR_Image1_2d7a679e71b50a60a86117ccaaa6f25e.jpeg)