Electronic 7 Series 3 Immersion Heater Controller

• Compatible with most cheap rate or Off-peak tariff structures
• Electronic 7 is fully interchangeable with all past and present Horstmann/Secure Economy 7 controllers
• Built in clock – automatic Summer / Winter time change
• ‘Boost’ button
• Timed boost programme
• Up to 3 Off-peak settings per 24-hours
• Programmable and manual boost
• Programme security feature
• Long-life battery maintains the clock, display and switch time settings throughout the life of the control
• 7 years no quibbles warranty

Electronic 7 is the digital equivalent of the Economy 7 Quartz timer, and is designed for use with Economy 7 and other more recent cheap-rate tariff arrangements. When water is heated by off-peak electricity, it is important that the immersion heater controller offers ease of use, coupled with the most efficient performance. This is where the Electronic 7 Series 3 controller comes into its own. Electronic 7 is designed to control one or two 3kW immersion heaters, utilising off-peak electricity tariffs to provide a full tank of hot water each morning. Additional off-peak settings are available to take advantage of the latest off-peak tariff arrangements. A boost button is provided to top-up hot water if supplies run low, and an automatic boost setting to provide a preprogrammed daily boost is also available.