How do I winterize my home to save on heating bills?

Start by sealing air leaks around windows, doors, and any gaps where pipes or wires enter your home using weatherstripping, caulk, or foam sealant. These drafts are often the biggest source of heat loss. Add door sweeps to exterior doors and consider insulating your attic if it lacks adequate insulation, since heat rises and escapes through the roof. For your heating system, replace furnace filters, bleed radiators if you have them, and have your system professionally serviced. Set your thermostat lower when sleeping or away and use a programmable thermostat to automate this. Insulate exposed pipes, reverse ceiling fans to push warm air down, and hang heavy curtains to reduce window heat loss. These steps together can cut heating costs by 20 to 30 percent.