Tip
Cut HVAC costs without buying new equipment
Most U.S. homes spend 40-50% of their energy bill on heating and cooling. Equipment efficiency matters, but operating practices matter just as much.
1. Set a deadband
Set heating to 68°F in winter and cooling to 78°F in summer — and program a 4-7°F setback during sleep and away hours. Each 1°F closer to outdoor temp saves 1-3% on HVAC energy. A smart thermostat handles this automatically.
2. Change filters every 1-3 months
A clogged filter forces the blower to work harder and reduces airflow across the heat exchanger. Both shorten equipment life and waste energy. Set a recurring calendar reminder — most homes need filter changes every 60-90 days.
3. Open and close registers strategically
Closing registers in unused rooms can save 5-10% — but don't close more than 30% of total registers; that creates back-pressure on the blower and damages ductwork.
4. Cycle ceiling fans with seasons
Counter-clockwise (looking up) in summer for cooling breeze. Clockwise on low speed in winter to push warm air down from the ceiling without creating drafts.
5. Get a tune-up annually
HVAC service in spring (AC) and fall (furnace) catches refrigerant leaks, cleans coils, and verifies safety on combustion equipment. Many utilities offer tune-up rebates of $50-$150.