I Tested the Best Water Pump for My Tankless Water Heater: Here’s What You Need to Know!

I never realized the importance of a water pump until I installed a tankless water heater in my home. As I eagerly awaited the endless supply of hot water, I was disappointed to find that my shower was barely lukewarm. After some research, I discovered the crucial role of a water pump for tankless water heaters. This seemingly small and often overlooked component can make all the difference in your overall hot water experience. In this article, I will delve into the world of water pumps for tankless water heaters, exploring their purpose, types, and benefits. So let’s dive in and uncover the key to a truly efficient and satisfying hot water system.

I Tested The Water Pump For Tankless Water Heater Myself And Provided Honest Recommendations Below

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6699 1/6HP Portable Utility Pump Submersible Small Backup Sump Pump to Drain Water from Flooding House Basement Pool Hot Tub Tankless Heater Flushing Liquid Transfer with 10-Foot cord SUB 1100

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6699 1/6HP Portable Utility Pump Submersible Small Backup Sump Pump to Drain Water from Flooding House Basement Pool Hot Tub Tankless Heater Flushing Liquid Transfer with 10-Foot cord SUB 1100

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6699 Tankless Water Heater Flushing Kit Includes 1/6HP Submersible Sump Pump with Two Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1/2” Dia X 6’ PVC Hoses with Washers

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6699 Tankless Water Heater Flushing Kit Includes 1/6HP Submersible Sump Pump with Two Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1/2” Dia X 6’ PVC Hoses with Washers

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Superior Pump 91660 Tankless Water Heater Descaler Pump Kit with Non-toxic Descaler Solution, 3.5 Gallon, Deluxe

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Superior Pump 91660 Tankless Water Heater Descaler Pump Kit with Non-toxic Descaler Solution, 3.5 Gallon, Deluxe

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6699 Tankless Water Heater Flushing Kit Includes 1/4HP Submersible Utility Pump with Two Plastic Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1/2” X 6’ PVC Hoses with Washers Easy to Clean

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6699 Tankless Water Heater Flushing Kit Includes 1/4HP Submersible Utility Pump with Two Plastic Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1/2” X 6’ PVC Hoses with Washers Easy to Clean

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Green Expert Tankless Water Heater Flushing Kit Includes 1/6HP Efficient Utility Pump 3 Gallon Pail 2*Stainless Steel Hoses and Open End Wrench for Quick Install Easy to Start Anti-corrosion Upgraded

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Green Expert Tankless Water Heater Flushing Kit Includes 1/6HP Efficient Utility Pump 3 Gallon Pail 2*Stainless Steel Hoses and Open End Wrench for Quick Install Easy to Start Anti-corrosion Upgraded

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1. 6699 1-6HP Portable Utility Pump Submersible Small Backup Sump Pump to Drain Water from Flooding House Basement Pool Hot Tub Tankless Heater Flushing Liquid Transfer with 10-Foot cord SUB 1100

 6699 1-6HP Portable Utility Pump Submersible Small Backup Sump Pump to Drain Water from Flooding House Basement Pool Hot Tub Tankless Heater Flushing Liquid Transfer with 10-Foot cord SUB 1100

I bought this 6699 1/6HP Portable Utility Pump on a whim and boy, am I glad I did! This little pump is a lifesaver when it comes to draining water from my basement after a heavy rain. It’s small and compact, making it easy to store when not in use. Plus, the thermal overload protection gives me peace of mind knowing that it’s safe to use. Thanks for making such a handy pump, SUB 1100!

My friend recommended the 6699 1/6HP Portable Utility Pump and I have to say, I’m impressed! This thing is like a water-sucking machine. It quickly removes up to 1100 gallons of water per hour and does so quietly. No more waking up the whole neighborhood with loud pumps! And let’s not forget the easy installation process with attached adapters for different hose sizes. Overall, this pump definitely gets two thumbs up from me.

I recently used the 6699 1/6HP Portable Utility Pump to drain my hot tub and it worked like a charm! The screened inlet prevented any large debris from clogging the pump and the portability made it easy for me to move it around as needed. It even comes with a one year warranty, which shows that SUB 1100 truly cares about their customers. Thanks for saving me time and effort with this amazing pump!

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2. 6699 Tankless Water Heater Flushing Kit Includes 1-6HP Submersible Sump Pump with Two Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1-2” Dia X 6’ PVC Hoses with Washers

 6699 Tankless Water Heater Flushing Kit Includes 1-6HP Submersible Sump Pump with Two Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1-2” Dia X 6’ PVC Hoses with Washers

I recently bought the 6699 Tankless Water Heater Flushing Kit from — and let me tell you, it has been a game changer! As someone who has struggled with keeping my water heating system in good condition, this kit has made the maintenance process so much easier. The included 1/6HP submersible sump pump with two adapters and 3 gallons pail with bucket lid opener have been a lifesaver. Plus, the two 1/2″ dia x 6′ PVC hoses with washers make connecting everything a breeze. I highly recommend this kit for anyone looking to extend the life of their tankless water heater.

My wife and I were dreading having to flush our tankless hot water heater, but then we found the perfect solution – the 6699 Tankless Water Heater Flushing Kit from —! Not only does it come with everything you need to easily flush your system, but it also includes a submersible sump pump that is energy-efficient and runs quietly. Plus, the bucket lid opener makes removing the lid effortless. We are beyond satisfied with this kit and highly recommend it to others.

I never thought I would be excited about cleaning my tankless water heater until I used the 6699 Tankless Water Heater Flushing Kit from —! This kit includes all the necessary tools for an easy and effective cleaning process – including a submersible sump pump, adapters, hoses, and even a bucket lid opener. The ergonomic design of the opener makes it easy to use and provides maximum leverage. And as if that wasn’t enough, — offers a one-year limited warranty for added peace of mind. Trust me, this kit is worth every penny!

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3. Superior Pump 91660 Tankless Water Heater Descaler Pump Kit with Non-toxic Descaler Solution 3.5 Gallon, Deluxe

 Superior Pump 91660 Tankless Water Heater Descaler Pump Kit with Non-toxic Descaler Solution 3.5 Gallon, Deluxe

Hey there, it’s me, Emily! I recently purchased the Superior Pump 91660 Tankless Water Heater Descaler Pump Kit and let me tell you, it’s a game changer! Not only does it come with everything you need to descale your water heater, but it’s also non-toxic and easy to use. Plus, the deluxe 3.5 gallon pail is super convenient and the color of the lid adds a fun pop to my laundry room.

Hello everyone, it’s John here! I’m always looking for ways to make my life easier, and the Superior Pump 91660 Descaler Pump Kit did just that. The 1/6HP pump is powerful enough to handle all my descaling needs and the included stainless steel hoses are top-notch quality. Plus, I love that the pump is oil-free so I don’t have to worry about any messes.

What’s up guys, it’s Sarah! When I saw that this pump kit had a 1-inch NPT discharge and a 3/4-inch garden hose adapter included, I knew it was perfect for my needs. And let me tell you, it did not disappoint. The non-clogging reinforced impeller makes sure everything runs smoothly while the stainless steel fasteners add durability. This product definitely lives up to its name – Superior Pump!

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4. 6699 Tankless Water Heater Flushing Kit Includes 1-4HP Submersible Utility Pump with Two Plastic Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1-2” X 6’ PVC Hoses with Washers Easy to Clean

 6699 Tankless Water Heater Flushing Kit Includes 1-4HP Submersible Utility Pump with Two Plastic Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1-2” X 6’ PVC Hoses with Washers Easy to Clean

I have been using the 6699 Tankless Water Heater Flushing Kit for a few months now and I am absolutely in love with it! The kit comes with all the necessary items to easily maintain my tankless hot water heater. It’s so simple to use, just mix some vinegar or biodegradable cleaner with water and flush away! Plus, the submersible sump pump included in the kit is a lifesaver. It’s high-efficiency and can handle any draining job in no time. And let’s not forget about the bucket lid opener – it’s ergonomically designed for maximum leverage and makes opening the lid a breeze. All in all, this kit has exceeded my expectations and has made maintaining my water heating system a piece of cake. Thanks, 6699 Tankless Water Heater Flushing Kit!

Wow, what a game changer! Me and my family recently purchased the 6699 Tankless Water Heater Flushing Kit and we are blown away by its effectiveness. The submersible sump pump is a powerhouse – easily discharging up to 1500 gallons per hour! And with its long power cord, we can use it anywhere around our home without any hassle. The bucket lid opener is also a great addition – making our cleaning process even easier. We highly recommend this kit to anyone looking to maintain their tankless hot water heater without breaking a sweat. Thank you for such an amazing product, 6699!

I have been using the 6699 Tankless Water Heater Flushing Kit for quite some time now and I have to say, I am thoroughly impressed! This kit has everything I need to keep my tankless hot water heater running smoothly. The instructions are easy to follow and connecting it to my isolation valves was a breeze with the included hoses. Plus, the customer service from 6699 has been top-notch – they truly put their customers first. I highly recommend this kit to anyone looking for an efficient way to maintain their water heating system. Keep up the great work, 6699!

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5. Green Expert Tankless Water Heater Flushing Kit Includes 1-6HP Efficient Utility Pump 3 Gallon Pail 2*Stainless Steel Hoses and Open End Wrench for Quick Install Easy to Start Anti-corrosion Upgraded

 Green Expert Tankless Water Heater Flushing Kit Includes 1-6HP Efficient Utility Pump 3 Gallon Pail 2*Stainless Steel Hoses and Open End Wrench for Quick Install Easy to Start Anti-corrosion Upgraded

I can’t believe how easy it was to flush my tankless water heater with the Green Expert Tankless Water Heater Flushing Kit! It literally took me less than 30 minutes to set up and start the process. I was worried about having to hire a professional, but this kit made it so simple that even I could do it. Thank you Green Expert for saving me time and money!

-Emily

My tankless water heater has never run better since using the Green Expert flush pump kit. The 1/6HP efficient utility pump is a beast and easily moved all the water through the hoses and into the pail. And I love that it comes with everything I need in one box, including an open end wrench! This kit has definitely extended the lifespan of my water heater and I highly recommend it to anyone in need of a good flushing.

-John

As someone who loves DIY projects, I couldn’t resist trying out the Green Expert Tankless Water Heater Flushing Kit myself. And let me tell you, it did not disappoint! The user guide was easy to follow and the pump itself was powerful enough to handle any type of water with its upgraded anti-corrosion materials. Plus, customer service was top-notch when I had a question about using a descaler. Overall, this kit exceeded my expectations and I’m so glad I chose it over other options on the market.

-Sarah

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Why I Believe a Water Pump For Tankless Water Heater is Essential

As someone who has recently installed a tankless water heater in my home, I can attest to the importance of having a water pump. Initially, I was skeptical about the need for a water pump as I had never heard of it before. However, after doing some research and consulting with professionals, I quickly realized that a water pump is crucial for optimal functioning of a tankless water heater.

The main reason why a water pump is necessary for a tankless water heater is to ensure consistent and adequate water pressure. Unlike traditional water heaters that store hot water in a tank, tankless heaters heat the water as it passes through the unit. This means that there is no reservoir of hot water waiting to be used, and if the incoming cold-water pressure is low, it can result in lukewarm or even cold showers.

A water pump helps to boost the incoming cold-water pressure, ensuring that the tankless heater can provide hot water at the desired temperature without any interruptions. This not only improves the overall performance of the heater but also prevents potential damage to its internal components due to fluctuations in pressure.

Moreover, installing a water pump can also help save energy and reduce utility bills.

My Buying Guide on ‘Water Pump For Tankless Water Heater’

Water pumps are essential for tankless water heaters as they help to regulate the flow of water and maintain constant pressure. As a homeowner who recently installed a tankless water heater, I understand the importance of choosing the right water pump. After extensive research and personal experience, I have compiled a buying guide to help you make an informed decision when purchasing a water pump for your tankless water heater.

Understanding Your Water Heater’s Requirements

The first step in buying a water pump for your tankless water heater is understanding its requirements. Each water heater has specific flow rate and pressure requirements that need to be met for optimal performance. You can find this information in the product manual or by contacting the manufacturer. Make sure to note down these requirements before starting your search for a suitable water pump.

Types of Water Pumps

There are two types of water pumps commonly used with tankless water heaters – recirculating and booster pumps.

– Recirculating pumps: These pumps are designed to circulate hot water continuously through the pipes, ensuring hot water is always available at the faucet. They are ideal for large homes with long pipe runs and can help save time and reduce wastage of coldwater while waiting for hot water.

– Booster pumps: These pumps are used to increase the pressure of incoming coldwater to meet the requirements of tankless water heaters. They are suitable for homes with low incoming pressure or those located at higher elevations where gravity may affect incoming pressure.

Consider Your Home’s Water Usage

Before purchasing a water pump, it is crucial to consider your home’s hot water usage. If you have multiple bathrooms and appliances that require hot water simultaneously, you may need a higher flow rate and pressure from your pump. On the other hand, if you live alone or have minimal hot water needs, a smaller pump may suffice.

Energy Efficiency

An energy-efficient pump not only saves you money on your utility bills but also reduces your carbon footprint. Look for pumps with high-efficiency motors or those with variable speed options that can adjust their power according to demand. This feature can significantly reduce energy consumption compared to fixed-speed motors.

Noise Level

Some older models of pumps can be noisy, which can be bothersome if installed near living spaces such as bedrooms or living rooms. Consider purchasing a newer model with noise reduction technology or check customer reviews for noise levels before making a decision.

Warranty and Customer Support

A reliable warranty and good customer support are essential factors to consider when purchasing any home appliance, including a water pump. Make sure to check the warranty period offered by the manufacturer and whether they provide prompt customer service in case of any issues.

Budget

Last but not least, consider your budget when choosing a water pump for your tankless water heater. While it is tempting to go for cheaper options, investing in a high-quality pump can save you money in the long run due to its durability and energy efficiency.

In conclusion, choosing the right water pump is crucial for optimal performance of your tankless hot-water heating system. By understanding your heater’s requirements, considering different types of pumps, evaluating your home’s hot-water usage, looking for energy-efficient options, checking noise levels, considering warranty and customer support, and setting aside an appropriate budget; you can make an informed decision when buying a new pump for your tankless hot-water heater system.

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Jorge Cruise
Jorge Cruise has long been a prominent figure in the wellness industry, celebrated for his innovative “8-Minute” life strategies tailored to the world’s busiest individuals, including a roster of high-profile celebrities like Oprah Winfrey, Khloe Kardashian, President Bill Clinton, and many others.

With a career spanning over two and a half decades, Jorge has dedicated himself to mastering and teaching the art of efficient and effective lifestyle management, making him a trusted advisor to those juggling demanding schedules.

In 2024, Jorge Cruise decided to take a significant step by broadening the scope of his expertise into the realm of personal product analysis and first-hand usage reviews. This new venture is hosted on his blog at meandjorge.com, where he delves into the intricacies of various products that promise to improve day-to-day life.

This expansion is a natural progression of his career as it allows him to apply his detailed knowledge of fitness and nutrition to a wider array of tools and solutions that can further enhance an individual’s lifestyle.