One of the biggest causes of energy loss during the winter is air leakage. Cold air enters through gaps around windows, doors and walls, forcing the heating system to work harder. Seal these gaps with weatherstripping and door sweeps. Insulating attics, walls and floors also prevents heat from escaping. Even thick curtains or draft stoppers can significantly reduce heat loss and impro... https://social.siblia.com/read-blog/92599_energy-saving-tricks-for-your-home-this-winter.html