Expert warning over leaving your heating on over nightIt can be tempting to leave the heat on while you sleep, to keep the house warmView Image A heating convector in the middle of a bedroomAs the colder nights draw in, many households are turning to electric heaters for an extra boost of warmth. ‌A spokesman said: “Generally, we would not recommend leaving an electric heater on all night unless it has been specifically designed for that purpose. “Central heating can usually be set and left, but electric heaters need more care. Running an electric heater overnight will also increase household costs at a time when energy prices remain high. The spokesman said: “Electric heaters consume a lot of energy compared to other heating systems.