The Horstmann Electronic 7 Immersion Heater Controller in White is a reliable and efficient device for controlling the heating element in a hot water system. Made by the reputable brand Horstmann, this controller model is designed to provide precise and accurate control over the heating element to ensure optimal performance. Its sleek white design adds a touch of style to any heating system while offering convenient functionality for easy operation. Ideal for use in immersion heater systems, this controller is a must-have for maintaining efficient and effective heating in your home.
originally this is for low price night-time electricity which is not now always available, this is a well made controller
i have an all electric house that later i hope to supplement with solar panels i think this will do the job as it has three different time controls and a boost on the second emersion heater