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Your water heater works every day to provide the hot water your household relies on. But like any major appliance, it needs regular maintenance to continue working efficiently.

One of the most important maintenance tasks is flushing your water heater.

Over time, minerals and sediment can accumulate inside your water heater. Phoenix homeowners can be especially familiar with mineral buildup because of our area’s hard water.

Whether you have a traditional tank water heater or a tankless system, understanding how sediment affects your unit can help you protect your investment and avoid unexpected problems.

Why Should You Flush a Tank Water Heater?

Traditional tank-style water heaters store and heat a large amount of water. As that water sits inside the tank, minerals and sediment can settle at the bottom.

Over time, that buildup can:

• Reduce the efficiency of your water heater
• Take up space inside the tank
• Make it harder for your system to heat water efficiently
• Contribute to corrosion and other problems
• Shorten the life of your water heater

Flushing the tank helps remove accumulated sediment and can help your water heater operate more efficiently.

How Often Should You Flush a Tank Water Heater?

The right maintenance schedule depends on your water quality, the type of water heater you have, and the manufacturer’s recommendations.

For many homeowners, annual maintenance is a good starting point, especially in areas with hard water.

If you aren’t sure when your water heater was last flushed, that’s a good reason to have a professional take a look.

Do Tankless Water Heaters Need to Be Flushed?

Yes, tankless water heaters need maintenance, too.

A tankless water heater doesn’t store a large tank of water, but water still passes through the unit. Over time, minerals can accumulate inside the heat exchanger, especially in areas with hard water.

Mineral buildup can restrict water flow and make it harder for the system to transfer heat efficiently.

A professional tankless water heater flush typically uses a cleaning solution circulated through the system to help remove mineral buildup.

Why Is Tankless Water Heater Maintenance Important?

Regular maintenance can help:

• Maintain efficient operation
• Reduce mineral buildup
• Protect the heat exchanger
• Maintain proper water flow
• Extend the life of the system

The maintenance schedule will depend on your unit and the manufacturer’s recommendations, but annual maintenance is commonly recommended for tankless systems, particularly in areas with hard water.

Tank vs. Tankless: Which One Needs More Maintenance?

Both types of water heaters need maintenance, but the maintenance looks different.

Tank Water Heater	Tankless Water Heater
Stores heated water	Heats water on demand
Sediment collects in the tank	Minerals can build up in the heat exchanger
Requires tank flushing	Requires system flushing/descaling
Maintenance helps reduce sediment buildup	Maintenance helps reduce mineral buildup
Typically inspected and maintained periodically	Often benefits from regular professional maintenance

The important takeaway is simple:

Neither type of water heater is completely maintenance-free.

How Do You Know Your Water Heater Needs Attention?

Don’t wait until your water heater starts leaking to think about maintenance.

Some signs that your water heater may need service include:

• Water isn’t getting as hot as it used to
• Hot water runs out faster than expected
• You hear popping, rumbling, or unusual noises
• Water temperature is inconsistent
• Your tankless unit shows an error code
• You notice reduced hot water flow
• You see water around the water heater

If you notice any of these signs, it’s a good idea to have the system inspected before a small issue turns into a larger repair.

Protect Your Water Heater With Regular Maintenance

Your water heater is a significant investment, and a little maintenance can go a long way toward keeping it working properly.

Whether you have a gas, electric, hybrid, tank-style, or tankless water heater, following the manufacturer’s maintenance recommendations and addressing mineral buildup can help protect your system.

And if you’re not sure what your water heater needs, you don’t have to figure it out yourself.

We Speak Homeowner

We explain what’s happening with your water heater in plain language, so you understand the problem and your options.

We Educate and Empower

We believe homeowners should have the information they need to make confident decisions about repairs, maintenance, and replacement.

We Provide a Higher Level of Service

From maintenance to repairs and replacements, our goal is to provide clear communication, professional workmanship, and a better overall experience.

That’s our Higher Level of Service.

Need Water Heater Service in Phoenix?

If your water heater is due for maintenance or you’re experiencing problems with your hot water, the team at Robins Plumbing can help.

We serve homeowners in Phoenix, Glendale, Scottsdale, Chandler, and surrounding areas with water heater maintenance, repair, and replacement services.

Don’t wait for a small water heater problem to become a major one.

Call Robins Plumbing at (623) 486-4657.

If you need a plumber, Call a Robin!