Where hot 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.
Which is where the upgraded Horstmann Electronic 7 Series 3 controller comes into its own.
Compatible with most cheap rate or off peak tariff structures.
Fully interchangeable with all past and present Horstmann Economy 7 controllers.
Built in clock - automatic Summer/Winter hour change.
Up to three off peak settings per 24 hours.
Programmable and manual boost.
Suitable for use with single, dual or twin element immersion heaters.
