3. Water Heater
According to the U.S. Department of Energy, heating water is responsible for 12 percent of U.S. home energy use. We use the water heater in so many applications: showers, cleaning dishes, cleaning clothes – it’s a pretty ubiquitous part of our daily routine. And at an average consumption of 400 kWh per month, it’s also a power-intensive one. Of course, the actual amount of energy you spend on hot water depends on a lot of factors, including the type (standard, solar, tankless) and size of your water heater, what temperature it’s set at, how long you shower for and whether you wash your clothes in cold or hot water.