![electrical - What is this box connected to my electric water heater? - Home Improvement Stack Exchange electrical - What is this box connected to my electric water heater? - Home Improvement Stack Exchange](https://i.stack.imgur.com/Ej8jd.jpg)
electrical - What is this box connected to my electric water heater? - Home Improvement Stack Exchange
![Please help! I know this is probably a dumb question to someone that knows… I want to use my immersion heater so it's heating the water instead of my gas. Do I Please help! I know this is probably a dumb question to someone that knows… I want to use my immersion heater so it's heating the water instead of my gas. Do I](https://preview.redd.it/please-help-i-know-this-is-probably-a-dumb-question-to-v0-b6i70f1yj1ia1.jpg?width=640&crop=smart&auto=webp&s=caa9af5a2e25023d5b8062b3b9c197eeb0cd4138)
Please help! I know this is probably a dumb question to someone that knows… I want to use my immersion heater so it's heating the water instead of my gas. Do I
![Horstmann BX2000 White Electronic Water Heating Boost Controller With 2 x Double Pole Isolator Switches For 24 Hour & Off-Peak Electricity Supply & 1 ... Horstmann BX2000 White Electronic Water Heating Boost Controller With 2 x Double Pole Isolator Switches For 24 Hour & Off-Peak Electricity Supply & 1 ...](https://shop4electrical.co.uk/659681-zoom_default/horstmann-bx2000-white-electronic-water-heating-boost-controller-with-2-x-double-pole-isolator-switches-for-24-hour-off-peak-electricity-supply-1-or-2-hour-boost-time.webp)
Horstmann BX2000 White Electronic Water Heating Boost Controller With 2 x Double Pole Isolator Switches For 24 Hour & Off-Peak Electricity Supply & 1 ...
![water heater - The contactor doesn't switch ON during the Off-peak hours (French installation) - Home Improvement Stack Exchange water heater - The contactor doesn't switch ON during the Off-peak hours (French installation) - Home Improvement Stack Exchange](https://i.stack.imgur.com/EkqNN.png)