When the temperature starts to drop, these handy hints will help you to keep warm this winter. Use Your Oven Once you've finished using the oven for cooking, many of us would just close the door. But once it's switched off, that's a valuable source of heat that can help to warm up your house as long as it's safe to do so and kids and pets are kept out of harm's way. Image credit Service Your Boiler Giving your boiler a service once a year helps to make sure it works as efficiently as possible. Not only does this warm up your house more effectively, it cuts down on bills too. And with energy prices set to rise by 5% in January, every penny counts. Insulate with Curtains and Carpets Windows and floors are a major source of heat loss, so curtains and carpets can be real hea...