Top Seven Appliances that Use the Most Energy in Your Home

Your HVAC, water heater, fridge, washer/dryer, lighting, and electronics use the most energy. Learn how you can lower your energy consumption with these appliances at home.

Have you ever wondered which appliances are increasing your energy bill? Some household appliances consume much more electricity than others, and knowing which ones are the biggest energy consumers can help you make smarter choices to lower your power usage and save money. Let’s break down the top energy-consuming appliances in most homes and what you can do to keep costs under control.

1. HVAC Systems (Heating & Cooling) – 40-50% of Energy Use

Your heating and cooling system is by far the biggest energy consumer in your home. Air conditioners, furnaces, and heat pump HVAC systems work hard to keep your home comfortable year-round, but they also account for almost half of your energy bill.
💡 Energy-Saving Tips:

  • Set your thermostat to 78°F in summer and 68°F or lower in winter for optimal efficiency.
  • Set your ceiling fan to rotate clockwise at a low speed during colder months to gently push warm air downward, improving circulation and reducing strain on your HVAC system.
  • Clean or replace air filters regularly to maintain efficiency.

2. Water Heater – 14-18% of Energy Use

Heating water for showers, dishwashing, and laundry can be a major energy consumption. Did you know traditional water heaters continuously heat water, even when they are not in use, wasting your energy and money.
💡 Energy-Saving Tips:

  • Lower your water heater temperature to 120°F to reduce the strain of maintening a higher temperature in your water tank.
  • Switch to a tankless water heater for on-demand heating.
  • Use cold water for laundry when possible.

3. Refrigerator & Freezer – 8-13% of Energy Use

Your fridge needs to maintain the temperature of your food, making it one of the most energy-consuming appliances in your home. Older models tend to use more power than newer, energy-efficient ones.
💡 Energy-Saving Tips:

  • Keep your fridge temperature at 37-40°F and freezer at 0°F.
  • Make sure the door seals are tight to prevent cold air from escaping and warm air from coming in.
  • Avoid overcrowding or keeping the fridge door open too long.

4. Washer & Dryer – 5-10% of Energy Use

Washing machines and dryers use a significant amount of energy, especially if you use hot water and high heat drying settings frequently.
💡 Energy-Saving Tips:

  • Wash clothes in cold water to cut energy use.
  • Dry clothes on a lowest heat setting or air-dry with a clothes line when possible.
  • Clean your dryer’s lint filter regularly for better efficiency.

5. Lighting – 5-10% of Energy Use

While lighting doesn’t use as much energy as large appliances, inefficient incandescent or CFL bulbs can still add up on your bill.
💡 Energy-Saving Tips:

  • Switch to LED bulbs, which use up to 90% less energy than incandescent bulbs.
  • Turn off lights each time you leave the room or not use them.
  • Take advantage of natural daylight whenever possible by opening blinds and curtains.

6. TVs, Computers & Entertainment Systems – 3-5% of Energy Use

Devices like televisions, gaming consoles, and computers continue to draw power even when turned off (a phenomenon called phantom or vampire energy).
💡 Energy-Saving Tips:

  • Unplug devices or use a smart power strip to cut phantom energy use.
  • Enable energy-saving mode on your TV and computer.
  • Use a laptop instead of a desktop computer—laptop consumes up to 80% less energy than desktop computers.

7. Electric Stove & Oven – 3-5% of Energy Use

Cooking appliances, especially ovens, use a lot of electricity, particularly when used for long periods of times like during the holidays and other celebrations.
💡 Energy-Saving Tips:

  • Use a microwave, air fryer, slow cooker or other countertop cooking appliances, which are more energy-efficient than ovens.
  • Avoiding opening the oven doors to keep heat from escaping while cooking (keeping it open while it's cold).
  • Match pot size to the burner to avoid wasted heat and use lids to cook food faster.
  • Open the dishwasher door to allow natural air drying and ventilation, reducing energy use and preventing moisture buildup.

Final Thoughts

By being aware of your home’s biggest energy-consuming appliances, it allows you to take control of your electricity bill and start saving money. Simple habits—like adjusting thermostat settings, switching to energy-efficient appliances, and unplugging devices when not in use—can lead to significant savings over time.

Want to cut your energy costs even further? Make an appointment for an energy audit to see where you can improve efficiency in your home or check out our No-Cost programs

What are your go-to tips for saving energy? Share in the comments below!