1. Air conditioning and heating units: These are some of the biggest energy consumers in a home, especially if they are old or poorly maintained.
2. Water heaters: Water heaters use a lot of energy, especially if they are constantly heating water.
3. Refrigerators and freezers: These appliances run 24/7 and use a lot of energy, especially if they are older models.
4. Clothes dryers: Clothes dryers use a lot of energy to heat and dry clothes.
5. Electric ranges and ovens: These appliances use a lot of energy to heat and cook food.