Hard water, which has high quantities of calcium and magnesium, can cause problems for water heaters. Understanding how hard water affects your water heater and how to deal with it might help it last longer and run more efficiently.

Here’s a closer look at how hard water affects water heaters:

• Scale Buildup: Hard water deposits minerals on internal water heater components, especially heating elements and tank bottoms. This deposit, known as scale, serves as an insulator between the heating element and the water. As a result, the heater needs to work harder to heat the water, increasing energy usage and utility expenses.
• Reduced Efficiency: Scale can reduce the efficiency of a water heater. The heating element must work harder to reach the desired temperature, resulting in lower overall efficiency. Additionally, scale buildup at the bottom of a tank-type water heater can lower the tank’s effective volume, resulting in less available hot water.
• Increased Wear and Tear: Scale-induced strain on heating elements can cause premature wear and tear. Over time, the elements may break, requiring repairs or even a complete replacement of the water heater. Scale can also cause additional issues, such as leaks or restricted water flow.
• Corrosion: Hard water can speed up the corrosion of tanks and metal parts. When scale forms, it traps moisture and creates an ideal habitat for rust and corrosion. This can shorten the life of water heaters and result in more frequent maintenance needs.

Addressing hard water issues sooner rather than later can save you money while also keeping your hot water running smoothly.