The ESI programmer is a quick to install, reliable and simple to use twin channel programmer that offers the user full control over their heating and hot water to regulate energy use and help lower costs.

• 7 Day, 5/2 or 24 hour operation
• 2 on and offs or 3 on and offs per day
• Automatic BST or GMT 1 hour time change
• Factory set clock and date
• Easy to use overrides
• Fits on industry standard backplate
• Easy to use and quick to install