Why do tankless water heaters need maintenance?

Why Tankless Water Heater Maintenance Matters?

Tankless water heater maintenance is more important than ever in today’s fast-paced society, where convenience and energy efficiency are key. These revolutionary technologies have transformed how we experience hot water, offering a constant supply while removing the need for a bulky tank.

Maintenance on a tankless water heater, or like the Bradford White Electric Heater or any other technology, requires a guarantee that it operates at peak efficiency. But don’t worry; as we go over the fundamental processes and advice for maintaining these modern marvels, you’ll see how simple it is to extend their lifespan and enjoy uninterrupted hot water while saving money on energy. We will also tell you the tankless water heater yearly maintenance cost.

Welcome to a world where your tankless water heater performs like a dream; join us on this maintenance tour to discover the secrets of a dependable and efficient hot water supply.

Importance of Tankless Water Heater Maintenance

Proper tankless water heater maintenance, including Rinnai tankless water heater maintenance, Noritz tankless water heater maintenance, and Ecosmart tankless water heater maintenance, is critical for several reasons. For starters, frequent maintenance extends the life of your heater. If properly maintained, these high-efficiency units, such as Rinnai, Noritz, and Ecosmart, can last for decades, saving you money in the long run by delaying the need for an expensive replacement.

Furthermore, servicing your tankless water heater ensures peak performance. Mineral deposits can form over time, lowering the unit’s effectiveness and potentially triggering malfunctions. Routine maintenance prevents such problems, ensuring your hot water supply is always reliable.

A well-maintained tankless water heater is energy-efficient in addition to longevity and performance. It runs smoothly and efficiently, requiring less energy to heat water, resulting in cheaper power bills and a lower carbon imprint. As a result, you will not only save money, but you will also contribute to a greener earth.

Finally, safety is an important consideration. Neglecting gas tankless water heater maintenance might result in potentially dangerous circumstances such as gas leaks or electrical issues. Regular inspections guarantee that your unit is safe to use, protecting your home and loved ones.

tankless water heater maintenance,

3 Important Maintenance Tasks for Tankless Water Heaters

Tankless water heater maintenance in Rowlett, TX, requires minimal maintenance and replacement parts. That doesn’t imply you should “set it and forget it.” To maximize your tankless water heater’s performance and lifespan, clean or replace the water filter and air filter (for gas systems), and regularly descale and flush the system. Below are some tankless water heater maintenance DIY solutions you can do yourself.

1. Clean or replace the Water Line Filter

Many tankless water heaters incorporate a water line filter for hard water, scale, and sediment. These impurities can damage the water heater and spread to pipes, faucets, and appliances.

Some filters may be cleaned and reused, while others must be changed. Check the maintenance for tankless water heater. Add a water filter to your tankless water heater to improve water quality and safeguard your plumbing.

2. Clean the Air Filter.

A heat exchanger swiftly heats water in tankless water heaters. For optimum operation, the heat exchanger needs fresh air. This air supply may be restricted if dust, debris, or other particles clog the air intake filter. The unit may need to work more efficiently, diminishing efficiency and causing faults.

Your tankless water heater’s air filter should be checked and cleaned regularly to avoid these concerns. The unit’s environment determines cleaning frequency. It may need more frequent cleaning if installed in a dusty or unclean region. Cleaning and checking the filter every six months is recommended.

Clean the Air Filter.

Steps to clean the air filter:

  • Turn off the tankless water heater before cleaning the filter. This prevents unit damage and ensures your safety.
  • Find the air filter: Air filters are normally on the bottom or side of the unit. Check your owner’s handbook for filter location instructions.
  • Depending on your tankless water heater model, you may require a screwdriver to remove the air filter. Check the filter for damage or buildup after removal.
  • Clean the filter: Use a soft brush or vacuum cleaner to remove dust and debris. Rinse the filter and let it dry before reinstalling.
  • After cleaning and drying, carefully reinstall the filter in the unit. It should fit snuggly in its housing.

3. Descaling and flushing the system

A Navien tankless water heater, or any tankless system, needs annual maintenance to run efficiently and last. Your unit’s integrated water filter can still accumulate lime and calcium deposits if you have hard water.

For Navien tankless water heaters, especially in hard water locations, descale and flush the unit annually as part of routine maintenance. If your home has soft water or a water softener, you can prolong this maintenance interval to 3-5 years.

White vinegar or a descaling solution is needed to begin descaling. A submersible pump is needed to circulate vinegar or solution through the tankless water heater for 45 minutes. Breaking down and removing lime and calcium deposits, which can slow the heater, is essential.

Finally, flush the device after descaling. Connect a garden hose to the tankless water heater’s hot side service valve. Flushing removes debris and descaling solution, making your Navien tankless water heater clean and ready to heat water.

This Navien tankless water heater annual maintenance plan will keep your water heater running smoothly and prevent mineral buildup from affecting your household’s hot water.

How to Maintain a Tankless Water Heater?

The methods which you should follow to maintain your water heater are:

  1. Supplies to Flush a Tankless Water Heater
  2. How to Flush a Tankless Water Heater
  3. How to Clean the Water Filter in Your Tankless Water Heater

Let’s explain each of them so that you can understand them thoroughly.

Supplies to Flush a Tankless Water Heater

Before you begin working, you must first gather the necessary supplies. To flush your water heater, you’ll need the following items:

  • A sump pump (a submersible utility pump) with a horsepower of 1/6 is excellent for descaling a tankless water heater. Use caution if you’re utilizing a pump that’s more than 1/4 horsepower.
  • 11 liters of distilled white vinegar
  • 1 bucket (20 litres)
  • Two lengths of hose (.6 1.2 meters) with the appropriate fittings should have come with your unit. You can also find them at your local hardware shop. They have the appearance of washing machine water supply hoses.
Supplies to Flush a Tankless Water Heater

How to Flush a Tankless Water Heater?

Minerals, sediment, and other debris can build up in the tankless water heater’s heat exchanger, reducing performance and possibly causing failure. Regular flushing removes these deposits, keeping the machine working smoothly and increasing lifespan.

To Flush the Tankless water heater, you should follow below steps:

  1. Turn off the tankless water heater before flushing the system. This prevents unit damage and ensures your safety.
  2. Turn off the water: Find the tankless water heater’s cold and hot shut-off valves. Stop the water supply to the unit by closing both valves.
  3. Drain the unit: Drain all water from the tankless water heater by opening the bottom drain valve. Collect water with a bucket or hose.
  4. After draining the tankless water heater, connect a descaling solution to the cold-water inlet valve. Follow your solution’s manufacturer’s instructions.
  5. Apply the descaling solution to the unit: Start the cold-water supply and let the descaling solution run through the tankless water heater for 45 minutes.
  6. After flushing the system with a descaling solution, turn off the cold-water supply and empty the tankless water heater again. Flush the machine with clean water to remove all descaling solutions.
  7. After flushing and draining the system, close the drain valve and open the cold-water supply and hot-water output shut-off valves to restore power and water. Power up the unit.
  8. A professional plumber can flush the tankless water heater for you. They will have the skills and equipment to finish fast and safely.
  9. Flush the system regularly to remove heat exchanger accumulation and keep your tankless water heater functioning smoothly for years.

How to Clean the Water Filter in Your Tankless Water Heater?

A sediment screen is used in some tankless water heaters to prevent bigger material from reaching the heating unit. These sediment screens are normally used for the life of the tankless heater and can be cleaned with running water or immersed in distilled white vinegar until clean.

If you’re searching for “tankless water heater maintenance near me,” the placement of this filter is determined by the make and model of your water heater; if you can’t find it, see the manufacturer’s instructions.

Experts Tips on Tankless Water Heater Maintenance:

Now, we are sharing some effective tips we implement, and we think it is the right time to share them with you. If your water heater leaking from top, then we have covered a guide for you on how to fix this problem.

Tools You Will Need

  • You can buy a tankless water heater maintenance kit or use these tools to flush a tankless water heater:
  • Your bucket or container will collect the water and debris from the device.
  • A pump is needed to circulate the descaling solution through the tankless water heater. Use a small submersible pump, utility pump, or descaling pump.
tankless water heater maintenance kit

Descaling solution: Remove heat exchanger mineral accumulation and silt with a descaling solution. Make your own tankless water heater maintenance descaling solution with white vinegar, or buy one.

Hoses: Connect the pump to the tankless water heater and drain the descaling solution and water with hoses. Use hot-water-compatible hoses that can bear pump pressure.

A wrench may be needed to remove the Rheem tankless water heater maintenance drain valve for cleansing.

Protective gear: Wear gloves, safety glasses, and a face mask to avoid the descaling solution and debris flushed out of the device.

Check the owner’s manual for flushing instructions and safety measures before flushing your tankless water heater. You should employ a plumber if you’re uncomfortable doing the work yourself.

Check the Pressure Relief Valve.

The pressure relief valve safeguards your tankless water heater against overpressure. It opens to release pressure if internal pressure surpasses a particular threshold. A malfunctioning valve might harm or explode your tankless water heater.

Check the Pressure Relief Valve.

How to check the pressure relief valve:

  • Before examining the pressure relief valve, turn off the tankless water heater. This prevents unit damage and ensures your safety.
  • The pressure release valve is normally on the tankless water heater’s top or side. Check your owner’s handbook for valve location directions.
  • Check the valve: Check the pressure relief valve for corrosion or leaks. The valve may need replacement if it has problems.
  • Lift and release the pressure relief valve lever to test it. Air should rush as the valve opens and closes. The valve may be jammed or not working if no sound is heard.
  • Replace the valve: Replace a damaged or malfunctioning pressure relief valve immediately. Refer to your owner’s manual or a plumber for valve replacement instructions.

Inspect the venting system.

Proper ventilation is necessary for tankless water heater safety. The venting system safely disposes of unit exhaust gases. Blockages or damage to the venting system might impact device operation and safety.

Inspection of the venting system:

Turn off the tankless water heater before inspecting the venting system. This prevents unit damage and ensures your safety.

Finding the venting system: The venting system is normally on top or side of the tankless water heater. The device has a vent pipe to the outside of your home.

Inspect the venting system.

Check vent pipe:

  • Check the vent pipe for damage or clogs.
  • Check for cracks, holes, or other damage that could let exhaust gases into your home.
  • Look for debris or other obstacles that could hinder exhaust gas passage.
  • Check the vent hood: The vent pipe ends at the vent hood on the exterior of your home. Look for vent hood blockages or damage that could compromise the venting function.
  • If you find venting system concerns, get a plumber to fix them. They have the skills and equipment to diagnose and repair venting system issues safely.

Check the Water Temperature

Maintaining tankless water heaters requires checking the water temperature. It checks that the unit is heating water to the right temperature and adjusts it to avoid scalding or insufficient hot water.

How to monitor water temperature:

  1. Turn on your home’s hot water faucet and let it run for a few minutes. This lets the tankless water heater heat water.
  2. Measure the faucet’s hot water temperature with a thermometer. Hold the thermometer in the water stream for an accurate reading.
  3. Inspect the temperature:
  4. Make sure the tankless water heater’s temperature matches the faucet’s.
  5. Control high temperatures to avoid scorching.
  6. Adjust the temperature to get adequate hot water if it’s too low.
  7. This method should be repeated periodically to keep the temperature accurate and changed as needed.
  8. Note that 120°F (49°C) is the maximum safe hot water temperature. Higher can cause significant burns, especially in children and older people. Reduce the temperature if you have young children or older adults in your home to avoid burns.

Schedule Professional Maintenance

Planning an annual professional maintenance check is smart. A trained plumber can inspect your unit, clean the heat exchanger, and ensure all components work properly.

If you still need help after performing these maintenance steps, contact TheFusionFeed staff. Identifying and fixing tankless water heater issues is our specialty. Our skilled crew can fix any difficulties and guarantee you have consistent hot water for years to come.

Schedule Professional Maintenance

Tankless Water Heater Maintenance Cost

The following table estimates annual maintenance costs of monthly, six-month, and tankless water heater. These estimates may vary depending on your water heater’s make and model, local water quality, and DIY versus professional servicing options.

Maintenance IntervalBasic MaintenancePremium Maintenance
Six Months$30-$60$60-$120


Tankless water heater maintenance extends the life of Rinnai, Noritz, and Ecosmart high-efficiency devices. It maximizes performance, energy efficiency, and safety while reducing replacement costs. Descaling, flushing, filter cleaning, and pressure relief valve inspections can be done yourself, but annual expert maintenance is suggested. Budget for basic and premium maintenance to maintain continuous hot water and eco-friendly functioning.

Frequently Asked Questions

What is the maintenance on a tankless water heater?

Maintenance on a tankless water heater typically involves cleaning the heat exchanger, checking for mineral buildup, and inspecting for any leaks or issues.

Do tankless water heaters require maintenance?

Yes, tankless water heaters require maintenance to ensure optimal performance and longevity.

How do I maintain my tankless water heater?

To maintain your tankless water heater, clean or flush it regularly to remove mineral deposits, check for leaks, and schedule professional inspections at least once a year.

What routine maintenance is required for a water heater?

Routine maintenance for a water heater includes cleaning or flushing to prevent mineral buildup, inspecting for leaks or damage, and ensuring proper venting.

Can I flush my tankless water heater myself?

You can flush your tankless water heater by following the manufacturer’s guidelines and using a descaling solution to remove mineral deposits.

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