How Often To Flush Your Duncan, OK, Tankless Water Heater

June 16, 2023

How Often To Flush Your Duncan, OK,
Tankless Water Heater

Proper Maintenance Ensures Equipment Longevity

If your Duncan, OK, home has a tankless water heater, you probably have noticed just how easier it is to have hot water on demand compared to traditional water heaters. However, you may have a few maintenance questions about your tankless water heaters.

One of the more popular questions asked by those in the Stephens County area is how often a tankless water should be flushed. And you may be thinking, should I flush my tankless water heater?

We will answer all these questions and more so you can ensure the longevity of your tankless water heater with proper maintenance!

Why Should You Flush Your Tankless Water Heater?

Due to hard water, minerals like calcium and magnesium will build up inside the lines. The combination of minerals and other debris is referred to as sediment.

When sediment builds up inside the lines, it can cause performance issues. The residue will slowly start to clog the water passages, leading to water pressure issues.

Tankless water heaters that suffer from complete clogs will need replacing. However, with the proper flushing schedule, you can avoid clogs, thus prolonging the life of your equipment.

How Often Should You Flush Tankless Water Heaters?

The average rule about flushing tankless water systems is to do this at least once yearly. However, if your Duncan, OK, home has hard water, you may need to flush the water heater every 6 to 10 months, depending upon the hardness of the water.

The harder the water, the more mineral buildup in your lines, which increases the chance of clogs.

Do You Have Hard Water?

One of the follow-up questions many people have is whether they have hard water or not in their homes. The common signs of hard water include the following:

  • White deposits on your faucets and showerheads
  • Tons of soap scum in your shower or tub
  • Dry and itchy skin
  • Water pressure issues are common in your home
  • Spots or film on dishes, glasses, and silverware after washing and drying
  • Soap tends not to lather as well, or it does not rinse as easily
  • After washing, clothes tend to smell funky despite using a detergent
  • An increase in utility bills since hard water makes appliances work less efficiently

Your local utility company can provide a detailed analysis of your water as to whether it is hard based on the minerals present. The Southwest and Midwest United States are known for having hard water, but it can be found anywhere!

Signs Your Water Heater Needs Flushing

It would help to remember several signs telling you when your tankless water heater needs flushing. Granted, flushing is a maintenance must-do every year. However, if your water is harder than you thought, these signs could help you avoid water heater replacement later!

Lack Of Hot Water

The beauty of tankless water heaters is having hot water on demand. So, when you start to see a lack of hot water, it is a significant sign that something is wrong. Sediment buildup could be why hot water is not making it to your fixtures.


Many people complain that their water smells funky. The sediment building up inside your unit is full of bacteria that emit the odor you smell. By flushing the lines of your tankless water heater, you can remove the bacteria, thus removing the odor simultaneously.

Discolored Water

Any time your water appears discolored, whether cloudy or rusty, it can signify that flushing your tankless water heater is needed.

Slow Water Flow

While a slow water flow could be due to sediment inside the pipes or in your kitchen or bathroom fixtures, it can also signify that you must flush your lines.

DIY Or Call A Professional

Being a Duncan, OK, homeowner has many responsibilities, including maintaining your home and the appliances within your home. However, many ask if flushing a tankless water heater is a DIY project or if a professional would be the better choice.

The Dangers Of DIY Tankless Water Heater Flushing

One of the biggest dangers of DIY flushing for your tankless water heater is not knowing what you are doing. Daily, homeowners attempt DIY projects that cost more to fix since they do not know what they are doing.

Given the price of tankless water heaters, why would you risk damaging it more with a DIY flushing?

Secondly, the water that is contained within the unit is scalding hot. It is not unheard of for homeowners to burn themselves when trying to attempt a water heater flush. Injuring yourself is highly likely, so do not take the risk!

If your tankless water heater is under warranty, trying to flush the system yourself could void the warranty. Many tankless systems are under an impressive warranty, so you want to avoid doing anything that could cause a voided warranty.

Always Call A Professional

Ultimately, while some feel brave enough to attempt a DIY flushing of their water tank, it is not recommended. From more costly repairs to injuries, you are better off letting a professional handle the flushing for your tankless water heater.

A professional can come into your Stephens County area home, flush your tankless system, and get you back up and running in no time without causing further damage and without voiding the warranty.

Free Estimates For Your Duncan, OK, Tankless Water Heaters

Whether you are looking to replace your Duncan, OK, water heater with a tankless option or looking for maintenance or repair, Robinson Air is here to handle the task.

Contact us or call us today at (580) 699–5760 for your free estimate!