Tips to Save Energy at Home: Water Heating

1. Install Low-Flow Faucets and Showerheads

Low-flow faucets and showerheads reduce water use while maintaining strong water pressure, so comfort stays the same. Look for fixtures with the WaterSense label, which certifies efficiency without performance loss. Also check the gallons per minute (gpm) rating — lower numbers mean less hot water used and less energy required to heat it.

2. Turn Down the Water Heater Thermostat

Most water heaters are set to 140°F by default, but 120°F is sufficient for showers, handwashing, and dishwashing. Lowering the thermostat by just 20 degrees can significantly reduce energy use while also lowering scalding risk — without affecting everyday comfort.

3. Wash With Cold Water

Heating water for laundry can account for up to 75% of the energy used per load. For most clothing, cold water cleans just as effectively and helps prevent stains from setting. Use liquid detergent designed for cold-water washing to maximize cleaning power while cutting energy costs.

4. Check for Leaks

Even a small leaking faucet or hot water pipe can waste gallons of heated water over time. Regularly inspect faucets, pipes, and visible connections, and fix leaks promptly. Stopping small drips early prevents unnecessary energy loss and higher utility bills.

5. Insulate Your Pipes

Insulating the first few feet of hot water pipes helps water stay warmer as it travels to faucets and appliances. This means less waiting for hot water and less strain on your water heater. Pipe insulation is an inexpensive DIY project that can improve efficiency almost immediately.

6. Replace Your Water Heater if Needed

Before replacing your water heater, check whether repairs or efficiency upgrades, such as insulation blankets or timers, can extend its life. If replacement is necessary, choosing the right size is critical. Options include traditional tank heaters, tankless, solar, heat pump, and indirect systems. Compare efficiency ratings and operating costs to find the best fit for your household.

7. Buy Energy Star-Certified Appliances

When replacing appliances, choose ENERGY STAR® certified models, which are designed to use less water and energy without sacrificing performance. If your current appliances are still working well, proper maintenance can help maintain efficiency. When replacement time comes, newer ENERGY STAR models deliver long-term savings through improved technology.

8. Cut Down on Water Use

Simple daily habits can noticeably reduce water heating costs. Turn off the tap while brushing your teeth, take slightly shorter showers, and run only full loads of laundry and dishes. These small behavior changes add up to meaningful energy and water savings over time.

By making targeted upgrades and small habit changes, you can lower water heating costs without sacrificing comfort. Whether you’re installing low-flow fixtures, adjusting your thermostat, or upgrading appliances, each step helps reduce energy use while keeping your home comfortable and efficient.