The ESi Controls Electronic Dual Cylinder Thermostat ES-CTDEB is a revolutionary new energy saving product, developed exclusively by ESi Controls. It is a direct and economical replacement for traditional mechanical dual cylinder thermostats. With real safety and energy saving benefits and providing accurate temperature control, it also features a clear and informative LCD display.

Designed for use on an unvented cylinder with a thermostat pocket.
The hot water can be stored at any desired temperature between 25°c and 65°c with the confidence that the weekly automatic one hour above 60°c kills any legionella bacteria, resulting in substantial energy saving. The LCD display shows the current water temperature and the user defined water temperature, while the red LED indicates that the unit is calling for heat.

The sensitive electronic sensors operate at a far greater accuracy than conventional oil filled mechanical dual thermostats, and do not need physical contact unlike traditional dual thermostats.

The large dial makes it easy to set the required controller temperature (between 25°c and 65°c). While the second (limit) safety thermostat is pre-set to 80°c with concealed manual reset, to comply with building regulations.