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Don't set the temperature too high… By reducing the thermostat setting by just 1.C can reduce your energy use by as much as 10%. And if you're going away for the winter, leave the thermostat on the frost protection setting to provide protection from freezing at a minimum cost. 2. Use it where you need it… Set the appropriate temperature on your heaters for the room they are in; for example, leave the thermostat on a heater in a spare bedroom on a lower setting. 3. Use it when you need it… Use he