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How much energy is your home wasting on water?

July 14, 2026

According to the U.S. Department of Energy, water heating can account for 25% of a home's energy use. This is a substantial percentage, representing thousands of dollars per year in energy costs. The good news is there are multiple ways to increase your home's energy-efficiency with respect to heated water. The Department of Energy provides a list. 1. Reduce hot water usage : Fix leaks, install low-flow fixtures, and use high-efficiency clothes washers and dishwashers. 2. Lower the hot water temperature : 120ºF is ideal. Each 10ºF drop in temperature saves up to 5% and slows corrosion. 3. [Insulate your water heater](http://www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=13070 "Insulate your tank") : A simple blanket wrap costs $25 and will save you up to 9% in costs 4. Insulate your water pipes : Water will be delivered 4ºF hotter which means lower energy use. 5. Install a timer : If your heater is electric, turn it off during non-peak hours such as overnight 6. Use [greywater heat recovery systems](http://www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=13040 "Greywater heat recovery") : 90% of water's energy is typically lost down the drain. Some of the above items are costly to implement, and others are inexpensive. Most can be handled without hiring a plumber, especially those items at the top of the list. As a Franklin homeowner, take control. Apply these energy-saving, water-heating strategies and you'll not only save money each month, but you'll lengthen the useful life of your home's appliances and plumbing. If you're in need a plumber referral, please ask.

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