This is echoed by Jess Steele, heating technology expert at BestHeating , who says, ‘It’s wrong to believe that having the heating on low all day will use less energy than the boiler turning on and off, as this will cause bills to rise, particularly if your home has poor insulation. Finding the most efficient way to heat your home in winter is one of the best ways to save energy at home, and this can leave you wondering whether to heat the whole house or just the rooms you’re using. Make sure these are properly insulated to reduce heat loss and save on energy bills: loft, roof, draught-proofing, windows, doors, pipelines, tanks, radiators and blocking gaps,’ say The Pimlico Group.