How to Lower Your Heating Bill Before Winter Hits
Lower winter heating costs with thermostat setbacks, air sealing, and simple furnace checks.
Lower your thermostat 7–10°F for eight hours daily while asleep or away, and seal air leaks before cold weather sets in. Check filters, service your furnace or heat pump, and fix leaky ducts to cut waste without losing comfort. A thermostat setback means lowering the temperature on a schedule, then raising it when you are home and awake.
Small maintenance steps now matter because heating demand rises fast once November cold arrives.
Verification note: Program terms and availability can change. This page was checked against linked sources on November 02, 2026.
How should you set your thermostat?
Turn the heat down 7–10°F for about eight hours per day. Do it while you sleep or while the house is empty. The U.S.
Department of Energy reports this habit can cut annual heating and cooling bills by as much as 10% in Six Simple Steps To Save Energy and Money This Winter. It applies to both furnace and heat-pump homes. A smart thermostat can help keep that schedule steady.
An ENERGY STAR certified model lowers heating and cooling bills by more than 8% on average, about $50 per year.
Where do air leaks waste the most heat?
Check attics, floors over crawl spaces, and basement rim joists. These spots often leak warm air and lack enough insulation. Air-sealing plus added insulation in those areas saves an average 15% on heating and cooling, or 11% on total energy, according to ENERGY STAR modeling in Why Seal and Insulate?.
Savings come from less heat escaping through cracks and thin spots. Start with caulk and weatherstripping around windows, doors, and pipe openings. Add insulation where the attic floor or rim joist feels cold or looks thin.
What maintenance cuts heating waste?
Inspect heating ducts for loose joints, gaps, and crushed runs. Leaky ducts can waste 20–30% of heated air before it reaches rooms. ENERGY STAR reports that sealing and insulating those ducts can improve system efficiency by as much as 20% or more in Heat and Cool Efficiently.
Focus on basement, attic, and crawl-space ducts first. Check central heating filters monthly and replace them at least every 3 months when dirty. Have furnaces or heat pumps professionally serviced yearly to protect motors and preserve efficiency.
How much will heat cost this winter?
Costs depend on fuel type this season. For winter Nov. 2026–Mar.
2027, the U.S. Energy Information Administration forecasts average household spending down 9% to $640 for natural gas and down 3% to $1,246 for propane in its Oct. 7, 2026 winter fuels outlook.
The same outlook forecasts spending up 4% for electric heat and up 21% for heating oil. Oil-heated homes face the strongest need to weatherize now. If you use oil or electricity, prioritize air sealing, duct repair, and thermostat setbacks.
Gas and propane users still save from the same steps, even when prices ease.
What limits these savings estimates?
The 10–15% savings figures are national averages from typical-home energy modeling. They are not promises for any single house. Actual results vary with climate, house condition, fuel price, and thermostat discipline.
A drafty oil-heated house with steady setbacks may save more than a mild-climate apartment with uneven use. Use the numbers to rank projects, not to predict your bill to the dollar. Track your own usage after each change to see what worked.