Thermostats and controls for electric systems
Electric storage heating and electric immersion heaters for hot water use some different thermostats and controls to systems with radiators, but you can still use those controls to reduce the energy you use and to save money.
Controls for electric storage heaters
Electric storage heaters use off-peak electricity to ‘charge up’ overnight and then release heat during the day.
Just like a central heating room thermostat, this helps to keep your rooms at a comfortable temperature. When the air around the thermostat dips below a set temperature, the storage heaters will release heat until that temperature is reached.
Controls for electric water heaters
Your hot water is stored in a cylinder, and the thermostat prevents it being hotter than it needs to be. Once the water has reached the temperature you have set, the immersion heater will turn off.
A separate hot water time switch will let you heat the right amount of water at the right time – and take advantage of off-peak Economy 7/10 tariffs. By signing up to one of these tariffs, and setting the timer to heat water at a cheaper, off-peak rate, you will use less electricity and save money.
Most systems have a second, smaller heating element at the top of the immersion cylinder, activated by a boost switch. Use this to heat a small amount of water at expensive peak times during the day.
Occupancy Detection, Daylight Sensing and Dimming
Further energy savings and reduction of maintenance costs can be achieved by installing intelligent lighting controls. By replacing conventional switching systems with detection units that sense movement, assess how much natural light is present in a particular area and decides if it is necessary for the luminaires need to be energised. This saves energy, improves lamp life, reduces maintenance costs and maintains lighting levels to the optimum.