The ESI offers flexibility and reliability for use in any domestic heating and hot water installation. This three channel multi-purpose programmer is designed for separate control of two heating zones and stored hot water. The heating zones and hot water programmes are all independent of each other, giving the opportunity to operate the system in the most energy-efficient and cost-effective manner.

• Large liquid crystal display screen with blue backlight
• 1 Day, 2.5 days or 7 days
• 2 on and offs or 3 on and offs per day
• Automatic BST or GMT 1 hour time change
• Fits on an industry standard backplate
• Factory set clock and date
• Landlord service interval reminder