Horstmann Electronic 7 Immersion Heater Controller

Horstmann Electronic Economy 7 controller for immersion heaters

• Fully interchangeable with earlier versions using plug-in connectors.
• No need to change the wall mounting box.
• Compatible with all utility company tariffs.
• Automatic clock adjusts to accommodate GMT/BST summer/winter time.
• Accommodates up to three secure off-peak heating periods every 24 hours.
• Long life battery maintains the clock, display and switch time settings throughout the life of the control.
• ‘Boost’ button is ideal for short term overriding of the set programme.
• ‘Boost’ element (in the tank) can be programmed so that it will heat only a small part of your tank at a set time each day.
• Can be set to accommodate utility tariffs that offer cheaper electricity periods during the day time.