The ESi Controls electronic dual cylinder thermostat is a revolutionary new energy-saving product, developed exclusively by ESi Controls and designed for greater accuracy, more effective operation and a real homeowner safety benefit.

The greatest energy and safety benefit of the ESCTDEB is the weekly one-hour ‘boost’ to over 61°C, disinfecting the cylinder, killing any legionnaire disease, allowing a lower storage water temperature and satisfying a number of legal and building requirements.

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 ‘boost’ to above 61°C kills any legionella bacteria, resulting in substantial energy saving. The duration of the legionella override can be adjusted from 1 to 7 days or completely disabled to operate as a conventional dual cylinder thermostat.

The LCD display shows the current water temperature and the user-defined water temperature, whilst 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 thermostats and do not need physical contact, unlike traditional dual cylinder thermostats.

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

• Energy-saving product
• Accurate temperature control
• Clear and informative LCD display
• Red LED indicates calling for heat
• Weekly one-hour "boost" kills legionella bacteria
• Pre-set limit/safety thermostat prevents overheating
• Concealed manual over-temperature reset
• Wide user-defined temperature range
• Large clear adjustable dial
• Easy to use and quick to install

The ESi Controls Clamp-on Cylinder Thermostats are configured specifically for the control of the domestic hot water cylinder to suit householder lifestyles and is suitable for both uninsulated and foam lagged cylinders.

The ESCTS can be used to switch directly wet central heating circulating pumps/boilers or to operate zone valves. The bimetallic sensor ensures accurate hot water temperature control, whilst the large clear adjustable dial is easy to read and adjustable between 0ºC and 80ºC. The ESCTS can provide energy savings when set between the recommended 60ºC and 65ºC.

The Cylinder Thermostat is very easy to fit and is designed for surface mounting on domestic hot water cylinders or tanks. The ESCTS can also be mounted on the pipe and comes supplied complete with both an extra-long mounting strap (and hooks) for even the largest cylinders and a spring for the heating pipes.

• Double insulated
• Bimetallic sensor ensures accurate hot water temperature control
• Wide temperature range
• Surface-mounted
• Large, clear adjustable dial
• Cylinder strap and hooks
• Easy to use and quick to install

The ESi Controls Clamp-on Cylinder Thermostats are configured specifically for the control of the domestic hot water cylinder to suit householder lifestyles and is suitable for both uninsulated and foam lagged cylinders.

The ESCTS can be used to switch directly wet central heating circulating pumps/boilers or to operate zone valves. The bimetallic sensor ensures accurate hot water temperature control, whilst the large clear adjustable dial is easy to read and adjustable between 0ºC and 80ºC. The ESCTS can provide energy savings when set between the recommended 60ºC and 65ºC.

The Cylinder Thermostat is very easy to fit and is designed for surface mounting on domestic hot water cylinders or tanks. The ESCTS can also be mounted on the pipe and comes supplied complete with both an extra-long mounting strap (and hooks) for even the largest cylinders and a spring for the heating pipes.

• Double insulated
• Bimetallic sensor ensures accurate hot water temperature control
• Wide temperature range
• Surface-mounted
• Large, clear adjustable dial
• Cylinder strap and hooks
• Easy to use and quick to install

The L641A Cylinder Thermostat is designed for surface mounting on domestic hot water cylinders. It can be used to switch directly wet central heating circulating pump or boiler, or to operate spring return and motor open/motor close zone valves.

• Snap Action SPDT Micro Switch
• Wiring Terminals Easily Accessible
• Tamperproof Temperature Setting
• Optional Manual Setting Knob Supplied
• Double Insulated