Hard Water and Tankless Water Heaters: What You Need to Know

If you’ve invested in a tankless water heater, you likely appreciate its convenience and long-term benefits. But one factor that can influence how well it works—and how long it lasts—is the hardness of your water. RAM Plumbing, as the trusted local plumber in Tucson, AZ, helps you take a closer look at why this matters.

How Hard Water Affects Tankless Units

Hard water contains high levels of minerals, like calcium and magnesium. While these minerals are generally harmless for consumption, they can cause problems for your tankless water heater.

When hard water is heated, the minerals become more concentrated and can form a hard scale that builds up in your appliance’s heat exchanger. This buildup can restrict the flow of water through the system and decrease its efficiency, resulting in higher energy bills and potential breakdowns. Additionally, the scale can also damage sensitive components of your water heater, leading to costly plumbing repairs or even premature replacement.

Signs of Hard Water Issues

Tucson water hardness can be classified as hard to very hard. Some common indicators that your tankless water heater may be affected by scaling include fluctuating water temperature, strange noises coming from the unit, decreased water pressure, and slow hot water delivery. Sure, these may also be signs of other issues, but when several are present together, it’s a good idea to call professional plumbing services to investigate further.

Prevention and Maintenance

The best way to protect your tankless water heater from hard water damage is through regular maintenance. Having your local plumbing company install a water softener can significantly reduce the amount of scale that forms. Flushing the unit at least once a year with a descaling solution is also recommended. Some manufacturers may require this maintenance to keep your warranty valid.

Is Hard Water a Dealbreaker?

Not at all. While hard water may present challenges, it’s completely manageable with the right preventive measures. By addressing these issues proactively, you can enjoy the benefits of a tankless water heater without worrying about performance or longevity.

Are you unsure whether hard water is affecting your tankless system? RAM Plumbing can perform an inspection and make recommendations to keep it running smoothly. From routine plumbing maintenance to resolving emergency plumbing situations, we are the team you can trust for all your plumbing needs. Call us today or fill out our online form to request a service visit.