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Smart thermostats automatically adjust heating and cooling based on your schedule. (Getty Images)
Smart thermostats automatically adjust heating and cooling based on your schedule. (Getty Images)

Key takeaways

  • Sealing air leaks, adding insulation and switching to LED lighting are simple home energy-efficiency tips that can significantly lower utility bills. 
  • Upgrading to Energy Star appliances and installing a smart thermostat offer measurable returns and may qualify for rebates in some areas. 
  • Adjusting daily habits and maintaining heating, ventilation and air-conditioning systems help homeowners maximize energy savings and comfort throughout the year. 

Improving your home's energy efficiency can lower your utility bills and make your living space more comfortable. Many homeowners overlook simple fixes that add up to real savings over time.

A home energy audit can help you spot areas where your house wastes energy and suggest practical upgrades.

What are the best home energy-efficiency tips?

1. Seal air leaks and add insulation: Sealing gaps around windows, doors and attics with caulk or weatherstripping prevents energy loss and lowers utility bills. Adding insulation in attics and walls offers a high return on investment, especially in colder climates.  

2. Switch to LED lighting: Replacing old bulbs with LEDs cuts electricity use by up to 75% compared to incandescent bulbs, according to the U.S. Department of Energy. LEDs last longer and need less frequent replacement, making them a cost-effective upgrade for any room. This is one of the simplest home energy-efficiency tips with immediate results. 

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3. Install a smart thermostat: Smart thermostats automatically adjust heating and cooling based on your schedule. Most homeowners can install these devices themselves, and they can save up to 10% on annual energy bills, according to the EPA's Energy star program.

4. Maintain your HVAC system: Changing air filters every one to three months, scheduling annual tune-ups and sealing ductwork improves efficiency and extends equipment life. Regular maintenance keeps your system running smoothly and prevents costly repairs.  

5. Upgrade to Energy Star appliances: Energy Star appliances use less energy and water than standard models. Upgrading refrigerators, washers and dishwashers can lower utility bills and may qualify for rebates in some areas. These upgrades offer clear cost and return benefits for homeowners. 

6. Lower water heater temperature and insulate the tank: Setting your water heater to 120 degrees Fahrenheit and insulating the tank can cut water heating costs by 10% to 15%, according to the U.S. Department of Energy. These changes require minimal investment and help prevent wasted energy. 

7. Use weatherstripping on windows and doors: Weatherstripping is a low-cost way to block drafts and improve comfort, especially in older homes. It works well alongside insulation and air-sealing efforts to keep conditioned air inside. 

8. Adjust habits for energy savings: Turning off lights, unplugging devices and running appliances during off-peak hours are simple habits that add up to meaningful savings. Small changes in daily routines can make a noticeable difference in your energy bills. 

9. Make seasonal adjustments: In summer, use ceiling fans and close blinds to keep cool. In winter, open blinds for warmth and to keep out drafts. Adjust thermostat settings for each season to maximize efficiency and comfort. 

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Frequently asked questions about home energy efficiency

How do I know if my home needs more insulation?

Signs include uneven temperatures from room to room, high energy bills and noticeable drafts. A professional home energy audit can pinpoint areas needing improvement.

Are smart thermostats compatible with older HVAC systems?

Most smart thermostats work with standard systems but check compatibility before purchasing or consult an HVAC professional.

What is the average payback period for energy-efficient appliances?

Payback varies by appliance, but most Energy Star upgrades recoup costs in two to five years through lower utility bills.

Is it worth getting a professional energy audit?

Yes, an audit identifies specific improvements for your home and helps prioritize upgrades for maximum savings.

Can weather affect my energy-saving strategies?

Local climate impacts which tips are most effective, so adjust your approach for seasonal and regional conditions.

The story was updated on June 5.

Writer
Katherine Lutge

Katherine Lutge is a staff writer for Homes.com. With a degree in multimedia journalism and political science from Virginia Tech, Katherine previously reported for Hearst Connecticut Media Group as a city hall reporter and a statewide business and consumer reporter.

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