The ES3247B is our top of the range three channel programmer, offering three completely independent time controlled channels. Ideal for control of two individual heating zones and separate hot water, giving the opportunity to operate the system in the most energy efficient and cost effective manner. Zoning a house not only helps make the heating system more energy efficient, but can also improve comfort conditions, as each zone will only be heated when required. The ES3247B capabilities enables installers to comply with Part L of the amended Building Regulations by providing separate timed heating control for living and sleeping zones whilst also providing timed control of hot water. ES3247B also features a ‘Holiday’ button allowing the user to switch off their heating for a specified number of days (1 to 99) while they are away from home. Additional features such as service interval timer, convenient user overrides, built-in ready-to-use programs, a day program copy facility as well as a stylish, compact design and easy to read display make the ES3247B the simple answer to all heating and hot water requirements. The new range of programmers hold a 3 year guarantee for consumer and installer peace of mind and are focused on value, quality and simplicity, offering an economical and durable solution for households.http://www.esicontrols.co.uk/es3247b.html