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Typically, a tankless hot water heater, also known as a demand hot water heater, is 24%-34% more energy efficient than your standard hot water heater if your home uses less than 41 gallons of hot water per day and 8-14% more efficient in a household that uses 86 gallons of water a day.
A tankless water heater gives you hot water on demand. They save money and energy, because a tankless unit doesn’t waste energy heating stored water. In a single person and a double person living situation, tankless hot water heaters are a wonderful way of conserving energy. But if you have several children and aren't careful with your hot-water consumption, you won't end up saving much money or energy. You can make a few simple changes in the way your family uses water and energy. And you'll get the most from your tankless hot water heater.
Change the Way You Shower
Showers use somewhere around 2.5 gallons a minute. A ten minute shower uses twenty-five gallons. If you shower for a half hour, you’ll glower after using 75 gallons of water.
- Take shorter showers.
- Don't shower everyday. Everyone should switch off days.
- Install low-flow showerheads.
Dishwashing
- Wash only full loads of dishes.
- If you don't have a dishwasher, hand wash with minimal water usage.
Clothes Washing
- Wash only full loads.
- Unless your clothes are heavily soiled, don’t wash them in hot water.
Sink
- Turn off the water when you aren’t rinsing your toothbrush, your face or your shaver.
- Defrost your food in the microwave.
As you can see, a few minor changes will boost the overall efficiency of your tankless hot water heater. You'll save money, water and emissions.
Tankless hot water heaters from Rheem were featured on the Big House Big Waste Episode of Wa$ted.
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