2. Reduce your heater and increase your air conditioner temperature
During winter, a cosy warm house is a must-have. But the costs will add up quickly, with every degree over 20 degrees using around 10% more energy. Keeping the heater set between 18-20 degrees Celsius not only helps to beat the winter chill, but you'll have a healthier energy bill. When it comes to air conditioner settings, set it to 24°C or higher (as each degree under uses 5% more energy).