Back to blogs

Best Descaler Kit for Tankless Water Heater: Our Top Picks

Most people have hard water in their area, which can negatively impact the performance of tankless water heaters. To prevent damage and extend the lifespan of your heater, it's important to use a descaler kit. In this article, we will discuss the top picks for descaler kits for tankless water heaters.

Key Takeaways:

  • Using a descaler kit is important for maintaining the efficiency and longevity of your tankless water heater.
  • A tankless water heater cleaning solution, also known as a descaler solution, is used to dissolve lime, rust, and other mineral deposits in the heat exchanger.
  • Isolation flush valves can make the process of flushing your tankless water heater more convenient.
  • The Whitlam Flush Kit is our top pick, offering an effective descaling solution and pump.
  • Other reliable options include the Rheem Flush Kit, Hercules Haymaker Flush Kit, My PlumbingStuff Flush Kit, and Eccotemp Flush Kit.

What is a Tankless Water Heater Cleaning Solution?

A tankless water heater cleaning solution, also known as a descaler solution, is a vital tool in maintaining the performance and longevity of your tankless water heater. This solution is specifically designed to dissolve mineral deposits such as lime and rust that can accumulate in the heat exchanger of the heater over time. These deposits can hinder the efficiency of your tankless water heater and lead to decreased performance and potential damage.

The tankless water heater cleaning solution is typically made with acidic substances like vinegar or citric acid, which effectively break down and dissolve the mineral deposits. By regularly using a descaling solution, you can prevent the buildup of these deposits and ensure that your tankless water heater continues to provide hot water efficiently.

It is important to note that using a tankless water heater cleaning solution should be done in accordance with the manufacturer's instructions and safety guidelines. Some solutions may require a specific ratio of solution to water or require the heater to be turned off during the cleaning process. Following the proper procedures will help you achieve the best results and avoid any potential risks.

https://www.youtube.com/watch?v=4RrvZqOEHWs

Why Should You Use a Tankless Water Heater Cleaning Solution?

Regular maintenance of your tankless water heater is essential to ensure its optimal performance and longevity. Using a descaling solution is a key part of this maintenance routine. Here are some reasons why you should incorporate a tankless water heater cleaning solution into your care routine:

  • Prevent Efficiency Loss: Mineral deposits can accumulate in the heat exchanger of your tankless water heater over time, causing reduced efficiency and decreased performance. Using a cleaning solution helps dissolve these deposits and restore the heater's efficiency.
  • Extend Lifespan: By regularly cleaning your tankless water heater, you can prevent the buildup of scale and mineral deposits that can lead to corrosion and damage. This ultimately extends the lifespan of your heater, saving you money on premature replacements.
  • Maintain Water Quality: Mineral deposits can affect the quality of your hot water, causing unpleasant odors or tastes. Using a descaling solution removes these deposits and helps maintain the quality of your hot water.

How to Use a Tankless Water Heater Cleaning Solution?

The process of using a tankless water heater cleaning solution may vary depending on the specific solution and manufacturer's instructions. However, here is a general guide on how to use a descaling solution for your tankless water heater:

  1. Turn off the power supply to the tankless water heater and close the water supply valve.
  2. Prepare the cleaning solution according to the manufacturer's instructions, ensuring the proper ratio of solution to water.
  3. Connect hoses to the heater's inlet and outlet ports, making sure they are securely attached.
  4. Place the other ends of the hoses into a bucket or drain to allow the solution to flow out.
  5. Open the water supply valve and allow the solution to circulate through the heater for the recommended period of time.
  6. After the designated time, close the water supply valve and disconnect the hoses.
  7. Flush the heater with clean water to remove any remaining solution.
  8. Follow any additional steps or recommendations provided by the manufacturer to ensure proper cleaning and safety.

Regularly using a tankless water heater cleaning solution as part of your maintenance routine will help keep your heater in optimal condition and ensure a continuous supply of hot water.

Do You Need Isolation Flush Valves?

While not necessary, isolation flush valves can make the process of flushing your tankless water heater much easier. These valves allow you to shut off the water flow to the heater without having to disassemble any parts. This eliminates the need for hiring a plumber and can save you time and effort. Investing in isolation flush valves is recommended as they make the flushing process more convenient.

If you're considering using a descaler kit for your tankless water heater, you might be wondering if you need isolation flush valves. The answer is no, isolation flush valves are not an absolute requirement. However, they can greatly simplify the process of flushing your heater, making it more efficient and convenient. Instead of having to disassemble various parts of your heater or hire a professional plumber, isolation flush valves allow you to easily shut off the water flow to the heater. This means you can perform the flushing process yourself without any hassle.

Isolation flush valves work by providing a dedicated shut-off point for the water supply to your tankless water heater. This means you don't have to shut off the entire water supply to your house. With isolation flush valves, you can isolate the water flow specifically to your heater, allowing you to flush it without any disruption to the rest of your household water usage. This can be particularly useful if you have multiple bathrooms or appliances that rely on a continuous water supply.

Benefits of Isolation Flush Valves:

  • Convenience: Isolation flush valves make the process of flushing your tankless water heater much easier and more convenient.
  • Time and cost savings: By using isolation flush valves, you can save time and money by not having to hire a professional plumber to perform the flushing process.
  • Minimal disruption: With isolation flush valves, you can flush your tankless water heater without interrupting the water supply to the rest of your house.

Overall, while isolation flush valves are not a necessity, they can provide significant benefits in terms of convenience, time, and cost savings. If you're planning to flush your tankless water heater yourself, investing in isolation flush valves is a worthwhile consideration.

Table: Pros and Cons of Isolation Flush Valves

Pros Cons Convenient and easy to use Additional cost to purchase and install Saves time and effort Not an absolute requirement Allows for independent flushing of the heater May require professional installation

By using isolation flush valves, you can simplify the flushing process for your tankless water heater and enjoy the benefits of convenience and time savings. While they are not mandatory, the added convenience they provide can make the flushing process more efficient and straightforward.

Our Top Pick - Whitlam Flush Kit

We recommend the Whitlam Flush Kit as our top pick for descaling tankless water heaters. This comprehensive kit includes everything you need for a thorough flush, ensuring optimal performance and longevity of your heater. The Whitlam Flush Kit comes with a quart of Flow Aide descaling solution, which effectively dissolves lime, rust, and other mineral deposits that can accumulate in the heat exchanger. The solution is non-toxic, making it safe and environmentally friendly. The kit also includes a powerful pump that can descale your heater in about 45 minutes, significantly reducing the time and effort required.

Although the Whitlam Flush Kit offers effective descaling, it's important to note that some reviewers have reported issues with the included hoses. To ensure a secure connection, it's recommended to double-check the hose connections during the descaling process. Despite this minor drawback, the Whitlam Flush Kit remains our top pick due to its efficient solution and convenient pump, making it an excellent choice for maintaining the performance and durability of your tankless water heater.

Whitlam Flush Kit - Product Details

Components Features Flow Aide Descaling Solution - Dissolves lime, rust, and mineral deposits- Non-toxic and environmentally friendly Pump - Powerful and efficient- Descales heater in approximately 45 minutes Hoses - Secure connections recommended- Some users reported issues Instructions - Detailed step-by-step guide included- Easy-to-follow process

Whitlam Flush Kit

The Whitlam Flush Kit provides a comprehensive solution for descaling your tankless water heater, ensuring optimal performance and longevity. With the included descaling solution, powerful pump, and detailed instructions, you can easily and effectively maintain your heater without the need for professional assistance. Regular descaling using the Whitlam Flush Kit will prevent the buildup of mineral deposits and extend the lifespan of your tankless water heater, saving you money on potential repairs or replacements in the future.

Tankless Water Heater Descaling Options: Rheem Flush Kit

When it comes to maintaining your tankless water heater, proper descaling is essential. The Rheem Flush Kit is a reliable option for those looking for an effective descaling solution. This kit offers convenience, compatibility, and the flexibility to choose your preferred descaling solution, whether it's a commercial descaler or a natural option like vinegar.

The Rheem Flush Kit comes with a durable and powerful pump that ensures the descaling solution circulates efficiently throughout your tankless water heater. This helps to dissolve mineral deposits and scale buildup, improving the performance and lifespan of your unit. The kit is designed to connect easily to isolation valves, making the descaling process hassle-free.

Although the Rheem Flush Kit is relatively expensive compared to other options on the market, its durability and effectiveness make it a worthy investment for tankless water heater maintenance. With proper use, this kit can help you keep your tankless water heater running smoothly for years to come.

Pros Cons Powerful pump for efficient descaling Relatively expensive Easy connection to isolation valves No descaling solution included Compatible with all tankless water heaters

Hercules Haymaker Flush Kit

https://www.youtube.com/watch?v=T4FaqGod3VU

The Hercules Haymaker Flush Kit is a top-quality option for cleaning and descaling tankless water heaters. This kit includes all the necessary components to effectively remove lime deposits, scale, rust, and even sulfates. With its citric acid-based cleaning solution, the Hercules Haymaker Flush Kit ensures thorough maintenance of your tankless water heater.

One of the standout features of this kit is its comprehensive package. It includes hoses, a pump, a cleaning solution, and even a bucket, offering everything you need in one convenient bundle. The citric acid-based solution is tough on mineral deposits while maintaining the safety of your tankless water heater.

While the Hercules Haymaker Flush Kit may be slightly more expensive compared to other options, its effectiveness in removing stubborn deposits justifies the cost. If you're looking for a reliable and high-quality kit for descaling your tankless water heater, the Hercules Haymaker Flush Kit is a great choice.

Tankless Water Heater Flush Kits: A Comprehensive Review

When it comes to maintaining the performance and longevity of your tankless water heater, regular flushing is essential. Using a flush kit specifically designed for tankless water heaters can make this task easier and more effective. In this section, we will review the My PlumbingStuff Flush Kit, a top-quality option for descaling tankless water heaters.

tankless water heater flush kit

My PlumbingStuff Flush Kit Features

  • Curated components: The My PlumbingStuff Flush Kit includes carefully selected items from various brands, ensuring superior quality and performance.
  • High-performance pump: This kit comes with a powerful pump that provides sufficient pressure to effectively circulate the descaling solution through your tankless water heater.
  • Whitlam Flow Aide descaling solution: The included descaling solution, known for its efficiency, will effectively remove scale and mineral deposits from your tankless water heater.
  • Stainless steel hoses: The kit includes durable stainless steel hoses that are resistant to corrosion and withstand high water pressure.

Comparison with Other Flush Kits

To help you make an informed purchasing decision, we have compared the My PlumbingStuff Flush Kit with other popular flush kits in the market. The following table provides a brief overview of the key features and highlights the unique benefits of the My PlumbingStuff Flush Kit:

Flush Kit Main Features Price Our Recommendation Rheem Flush Kit Powerful pump, compatible with any tankless water heater $$ Great alternative Hercules Haymaker Flush Kit Citric acid-based solution, effective against tough deposits $$$ Best for heavily scaled heaters Eccotemp Flush Kit Convenient all-in-one design, affordable price $ Best budget option My PlumbingStuff Flush Kit Curated components, high-performance pump, Whitlam Flow Aide descaling solution, stainless steel hoses $$$ Our top recommendation

Based on our analysis, the My PlumbingStuff Flush Kit offers a comprehensive and reliable solution for descaling tankless water heaters. The curated components, high-performance pump, and top-quality descaling solution make it our top recommendation. While it may be on the pricier side, the effectiveness and durability of the kit justify its cost.

Eccotemp Flush Kit

The Eccotemp Flush Kit offers a unique and convenient design for effectively flushing tankless water heaters. This kit is an ideal solution for homeowners looking for an affordable option without compromising on quality.

The Eccotemp Flush Kit is equipped with a built-in pump, eliminating the need for a separate pump and bucket. It simplifies the flushing process by allowing you to add the descaling solution and water directly into the unit. Connect the hoses, turn it on, and let the kit do the work for you.

With its compact and portable design, the Eccotemp Flush Kit is easy to use and store. It provides a cost-effective solution for regular maintenance of your tankless water heater, helping to prevent mineral buildup and ensure optimal performance.

Key Features:

  • Built-in pump for easy and efficient flushing
  • Compact and portable design
  • Cost-effective solution for regular maintenance

Pros:

  • Affordable option
  • Convenient and user-friendly
  • Eliminates the need for additional equipment

Cons:

  • May not be suitable for heavy or stubborn mineral deposits
  • Limited capacity compared to larger flush kits

Factors Affecting Frequency of Tankless Water Heater Flushing

Flushing your tankless water heater regularly is crucial for its maintenance and optimal performance. The frequency of flushing depends on several factors, which we will discuss in this section.

Water Hardness

One major factor that affects the frequency of tankless water heater flushing is the hardness of your water. Hard water contains high levels of minerals, such as calcium and magnesium. Over time, these minerals can accumulate in the heat exchanger of your heater, reducing its efficiency and potentially causing damage. If you live in an area with hard water, you may need to flush your tankless water heater more frequently, such as every 6-12 months.

Water Usage

The amount of water used in your household also plays a role in determining how often you should flush your tankless water heater. If you have a large family or use a significant amount of hot water, your heater may accumulate more deposits and require more frequent flushing. On the other hand, if you have a smaller household or limited hot water usage, you may be able to flush your heater less frequently.

Manufacturer Recommendations

It's important to refer to the manufacturer's recommendations for your specific tankless water heater model. Different manufacturers may have different guidelines for flushing frequency based on their product specifications. Following the manufacturer's recommendations will help ensure that you maintain your warranty and keep your tankless water heater in optimal condition.

In summary, factors such as water hardness, water usage, and manufacturer recommendations should be taken into consideration when determining how often to flush your tankless water heater. Regular maintenance and flushing will help prevent mineral buildup, extend the lifespan of your heater, and ensure its efficiency.

https://www.youtube.com/watch?v=Ov72cEwhAFQ

Should You Hire a Professional or Use a DIY Kit?

When it comes to maintaining your tankless water heater, you have two options: hiring a professional plumber or using a DIY descaling kit. Both approaches have their pros and cons, so it's important to consider your specific situation and needs.

Hiring a professional plumber for tankless water heater servicing ensures that the task is done correctly. Professionals have the expertise and equipment to thoroughly flush and descale your heater, ensuring optimal performance and prolonging its lifespan. However, this option can be more expensive, as you'll need to pay for the plumber's services.

Using a DIY descaling kit offers a cost-effective solution for tankless water heater maintenance. These kits typically include all the necessary components and instructions for flushing and descaling your heater. While DIY kits can be more affordable, it's important to do proper research and follow the instructions carefully to avoid any potential issues. Keep in mind that using a DIY kit may require more time and effort on your part compared to hiring a professional.

Factors to consider:

  • Your budget: If you have a limited budget, a DIY descaling kit may be a more practical choice.
  • Your comfort with DIY projects: If you enjoy tackling home maintenance tasks on your own and have some basic plumbing knowledge, using a DIY kit can be a rewarding experience.
  • The complexity of your tankless water heater: If your heater has intricate components or if you're unsure about how to safely flush it, hiring a professional is the safer option.
  • Time constraints: Hiring a professional can save you time and effort, especially if you have a busy schedule or lack the time to research and perform the DIY maintenance.

Ultimately, the decision to hire a professional or use a DIY descaling kit depends on your comfort level, budget, and the complexity of your tankless water heater. It's worth considering having your heater professionally serviced once every two years, even if you choose to use a DIY kit, to ensure it receives thorough maintenance and remains in optimal condition.

Conclusion

Descaling your tankless water heater is essential for maintaining its optimal performance and prolonging its lifespan. Choosing the right descaler kit is crucial to ensure effective descaling and prevent damage caused by mineral deposits. After thorough research, we have identified some top options for descaler kits for tankless water heaters.

Our top pick is the Whitlam Flush Kit, which includes a quart of Flow Aide descaling solution and a pump for a thorough and efficient flush. The non-toxic solution is safe to use and the pump facilitates the descaling process, saving you time and effort. However, the included hoses may require careful connection to ensure a secure fit.

Other reliable options include the Rheem Flush Kit, Hercules Haymaker Flush Kit, My PlumbingStuff Flush Kit, and Eccotemp Flush Kit. Each kit offers unique features and components that cater to various needs and budgets. Consider factors such as water hardness and budget when selecting a descaler kit for your tankless water heater.

Regular maintenance and flushing, using a high-quality descaler kit, will help keep your tankless water heater in optimal condition. By preventing the build-up of mineral deposits, you can ensure that your heater operates efficiently and lasts for years to come.

FAQ

What is a tankless water heater cleaning solution?

A tankless water heater cleaning solution, also known as a descaler solution, is used to dissolve lime, rust, and other mineral deposits that can accumulate in the heat exchanger of a tankless water heater. These solutions are usually made with acids like vinegar or citric acid, which effectively dissolve the deposits.

Do you need isolation flush valves?

While not necessary, isolation flush valves can make the process of flushing your tankless water heater much easier. These valves allow you to shut off the water flow to the heater without having to disassemble any parts. This eliminates the need for hiring a plumber and can save you time and effort.

What is our top pick for descaling tankless water heaters?

We recommend the Whitlam Flush Kit as our top pick for descaling tankless water heaters. This kit includes everything you need for a thorough flush, including a quart of Flow Aide descaling solution and a pump that can descale your heater in about 45 minutes. The solution is effective and non-toxic, making it safe to use.

What is the Rheem Flush Kit?

The Rheem Flush kit is another option for descaling tankless water heaters. While it is relatively expensive, it comes with a durable and powerful pump that can circulate the descaling solution quickly. This kit does not include the solution, allowing you to choose your preferred brand or use vinegar. It can be used with any tankless water heater and connects easily to isolation valves.

What is the Hercules Haymaker Flush Kit?

The Hercules Haymaker Flush Kit is a high-quality option for descaling tankless water heaters. Its citric acid-based solution is tough on lime deposits, scale, rust, and even sulfates. The kit includes all the necessary components, including hoses, a pump, a cleaning solution, and a bucket. While the price may be higher compared to other kits, the effectiveness of the solution justifies the cost.

What is the My PlumbingStuff Flush Kit?

The My PlumbingStuff Flush Kit is a curated descaler kit that combines the best items from various brands. It includes a high-performance pump, the Whitlam Flow Aide descaling solution, and stainless steel hoses. This kit is on the pricier side, but it offers top-quality components that ensure effective descaling of tankless water heaters.

What is the Eccotemp Flush Kit?

The Eccotemp Flush Kit offers a unique and convenient design. The kit itself acts as a pump, eliminating the need for a separate pump and bucket. Simply add the descaling solution and water to the unit, connect the hoses, and turn it on. This kit is the most affordable option reviewed here, making it a budget-friendly choice for tankless water heater flushing.

How often should I flush my tankless water heater?

The frequency of tankless water heater flushing depends on several factors, including the hardness of your water. Hard water tends to cause more mineral deposits to accumulate in the heater, requiring more frequent flushing. The general recommendation is to flush your tankless water heater once a year, but this can vary depending on your location and water hardness.

Should I hire a professional or use a DIY descaling kit?

When it comes to servicing your tankless water heater, you have the option to hire a professional plumber or use a DIY descaling kit. Hiring a professional can be more expensive, but it ensures that the task is done correctly. DIY kits offer a cost-effective way to flush your tankless water heater, but proper research and following instructions are necessary to avoid any potential issues.

How often should I have my tankless water heater professionally serviced?

It's recommended to have your tankless water heater professionally serviced once every two years, even if you choose to use a DIY descaling kit.

Lightning fast quotes.

Our water heater experts are standing by to help. Complete our form or call to schedule service.

Get a quoteA picture of a water heaters now technician.