Tankless Water Heaters — How Many You Need Depends On 2 Key Factors

Tankless water heaters, also known as demand water heaters, heat water only when you need it. There’s no storage tank like a conventional water heater, thus no standby energy loss as unused water cools in the tank. Tankless heating can reduce water-heating costs by as much as 50 percent. Because the drawbacks of conventional tank …

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