Best Hot Water Recirculating Pump Reviews

Bring home the most effective and economical alternative to round-the-clock hot water with are circulating pump for instant hot water. It operates by circulating substances like liquids or gases in either a closed or loop circuit. Having a hot water recirculating pump installed in your home is usually unnecessary, but it can be quite the luxury if you don’t like having to wait for your hot water to start coming out of the faucet.

A recirculating pumps main job is to make sure that the hot water lines in a building are always getting a fresh stream of hot water pushed into it. When you don’t have a recirculating pump installed you may find that when you turn on the hot water you don’t actually get hot water for a few seconds or maybe even minutes. This is because the hot water that was in that pipe has left the water heater and has now cooled down towards room temperature. When you first turn on the hot water after the pipe has cooled down you will have to wait for the hot water from the heating tank to reach your faucet which takes some time.

The recirculating pump will make sure that you always have hot water ready for you to use right at the faucet.

This does not require much energy, unlike other water heating pumps. The installation procedure of such pumps is not complex and does not take more than an hour to set up. Since circulating pumps hardly take energy to run, these are designed for home usage and are, therefore, small in size so that they stand compatible with the modern plumbing systems. Considering a high-quality hot water recirculation pump is no doubt a smart idea for today’s apartments.


Best Hot Water Recirculating Pump

Comparison Chart

No.ImageNameTypeVoltageWarrantyWhere to buy
1Watts 500800Water Heater Mounted120 volts1 YearCheck Price
2Grundfos 595916Water Heater Mounted115 volts2 YearsCheck Price
3Laing AutocircUnder Sink115 volts1 YearCheck Price
4SHURFLO 4008-101Under Sink12 volts2 YearsCheck Price
5BACOENGWater Heater Mounted110 volts1 YearCheck Price

Watts 500800 Hot Water Recirculating System with Built-In Timer

On waking up one morning, you find that your hot water is ready and you don’t have to wait even for a second. Yes, such an assurance has been brought by Watts 500800 premier hot water recirculation pump that will now keep hot water ready all the time whenever required. Equipped with a timer within, you will be provided hot water at every shower or faucet. best hot water recirculating pumpSo, there is no chance of water getting wasted unnecessarily. What homeowners are loving about it is its easy installation process where no piping needs to be added and takes not even an hour to get the process done. Also, it can conserve up to 15,000 gallons of water on a yearly basis.

What has made it a showstopper is its unique design that takes almost no space to get installed. Moreover, who doesn’t love noiseless pumps at home? In fact, Watts 500800 is a new-age water heating pump that hardly requires any maintenance. Its user-friendliness also makes it stand out as it comes with a 24 x 7, dual setting programmable timer, built within. This activates the pump just when it is required. In terms of saving, this trendy recirculating pump clearly wins as it will let you save around 10% of your water bill.

So, if value for money is what you have been expecting from this recirculating pump, Watts 500800 is all yours.


  • It is very easy to install
  • It requires low maintenance
  • It is designed to last for years of regular use
  • It is built with a timer to become energy and cost-efficient
  • It can save thousands of gallons of water per year


  • It produces warm water right away rather than hot
  • Its hoses may be damaged sooner than its main pump
  • Its timer should be adjusted regularly

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Grundfos 595916 1/25 Horsepower Comfort Series Recirculator Pump

Every homeowner aims to install such appliances that can deliver world-class performance but emit meager electricity. Grundfos 595916 is super energy-efficient, hot water recirculation pump that will now keep both water and electricity in control. Belonging to the Comfort series, it comes with a line cord and a timer as well. Besides, its innovative Comfort Valve and UP15-10SU7/TLC circulator serve as a complete package. best hot water recirculation pumpThe 10-foot power cord along with the timer and the circulator is directly installed to the hot water discharge on the heater. What’s unique is that this recirculating pump has been manufactured with an internal by-pass and one-piece diaphragm. This has been done to lend durability and make it deliver unmatched performance.

No questions can be raised in regard to its flow capacity and low noise as it operates like there is no such device present. In fact, it eliminates the factor of rapid cycling and has, therefore, been called highly reliable by a fair percentage of users, mostly homeowners. With the flow rate of 3 gallons per minute, Grundfos recirculating pump enjoys thermal protection and has the potential to run absolutely dry. Even in case of installation, it is ready to be mounted anywhere and takes no effort or space to be set up. Being counted among the most dependable hot water recirculation pumps, this powerhouse from Grundfos is no doubt a winner.


  • It is available at an affordable price
  • It can be installed easily
  • Its flow rate can be adjusted according to your likes
  • It is made from high-quality materials and parts
  • It has a built-in timer to become energy-efficient
  • It only requires low maintenance


  • Its valve may tend to leak in some cases
  • Its other parts are not as durable as its other parts
  • It may make more noise when it is running when compared to other similar pumps

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Laing LHB08100092 AutoCirc Recirculation Pump with Timer

If you have a typical water heater, there is something far better, more advanced and extremely energy-saving waiting for you. Laing LHB08100092 is an advanced hot water recirculation pump that will now make you say goodbye to those pathetic waits for getting hot water. Equipped with a temperature sensor, this auto circulation pump is switched on automatically just when the temperature of the water cools to 85-degree Fahrenheit.

hot water recirculating pump reviewsThe good news is water will also be available at an instant for multiple faucets in the supply line in between the faucet and the water heater. So, while installing, what homeowners would be relieved to know that they do not require any return line. Moreover, the motor takes a compact spherical design and will, therefore, not take much space to install. In fact, while installing this recirculating pump, you can save up to 17,000 gallons of water. With this, a lot of users have been able to save a lot of energy as well as money simultaneously.

As far as its operation is concerned, it involves no sound and this calls for a perfect reason why it goes best for households. Requiring only 14 watts of power, it even comes equipped with a 24-hour timer that helps in choosing the time of operation. Laing hot water recirculating pump, in other words, is value for money that will certainly be worthy for apartments.


  • Can save up to 17,000 gallons of water
  • Operates with no noise at all
  • It does not require a return line to work
  • It only requires a small amount of energy
  • It can help you save gallons of water
  • It prevents blockage and is maintenance-free


  • Is not compatible with tankless heaters
  • Timer may cause problems
  • It is expensive
  • It only works for one point of entry

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SHURflo 4008-101-E65 3.0 Revolution Water Pump

If a groundbreaking recirculating hot water pump is what you have been hunting for, nothing can beat the uniqueness of SHURflo 4008 series water pumps. Found mostly with campers, fifth wheelers, motorhomes and travel trailers, these feature-rich pumps come with multi-feature RV flexible by-pass for easy installation. As it comes with three gallons per minute flow rate, it holds the ability to deliver solid steam. In fact, the supply of water is not drained out just as it happens in other water heating pumps.

hot water recirculation pump reviewsWhat also leaves homeowners happy is that it takes neither any hassle nor any effort to mount it. Just choose a suitable place, install it properly after checking all those necessary hookups and hoses, mount it well and the job gets done in a few minutes. Although it doesn’t bring hoses with it, you can manage well with the provided connectors and a mounting bracket. Well, as mentioned earlier, this mini powerhouse can give up to 3 gallons of water every minute to showers, toilets and even onboard sinks at 55 PSI. Assuring complete thermal protection, it draws a decent power of 7.5 Ampere from a 12 VDC power outlet. What also does a good job is its Flow Reaction Technology that cuts down the vibration, noise and extreme pump cycling.

SHURflo 4008 series water pump is of course under budget and can certainly be a smart deal if you get it for the industrial or domestic purpose.


  • It operates silently
  • It is made with a unibody construction
  • Its pressure switch can be fully adjusted
  • It is designed to produce gallons of water in just a minute
  • It has a thermal protection and runs dry without being damaged


  • Its motor speed is a little slower
  • It is not ideal for heavy-duty use
  • Its parts are not that durable and break down easily

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Grundfos 59896155 1/25 Horsepower SuperBrute Recirculator Pump

High on power and solid like steel, Grundfos hot water recirculation pump has made name and fame in terms of its versatility. What makes it super-efficient is its 3-speed motor, which means it can be operated in three varying speeds – Low, Medium and High. Ideally designed to stand compatible with almost every conventional heating appliance, this recirculating pump comes equipped with a detachable, built-in check valve. what is a recirculating pumpMoreover, when it comes to buying a pump, what one ensures is that it is noise-free, and this model from Grundfos smoothly takes away a point in this respect. What makes it operate with silence is its wet motor design that makes it a worthy water heating solution among its contemporaries. It is one of the best residential hot water recirculation pump which is available in the market at very competitive prices.

As far as its internal protection is concerned, its built-in motor is assured supreme protection that accounts for not only for its durability but also helps it perform with no glitches. Grundfos 59896155 has been designed for multiple applications right from fan coil heating, radiant heating, hydronic heating to solar systems. What makes its body strong and sturdy is its cast iron housing. Moreover, it comes with a flow range of 0 to 15.5 GPM that is quite decent.

So, where a recirculating pump hardly needs any maintenance, consumes low energy and easy to install, don’t you think it is worth every penny? Bring one home today to know its real value.


  • It can be installed without so much effort
  • Its flow rate can be adjusted according to your needs
  • It is made from high-quality materials for heavy-duty construction
  • Its designed only requires low maintenance
  • Its automatic sensor comes in handy all the time


  • Its other parts may break down sooner than its pump
  • Its pump can have rust inside which can mix into the water

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Watts Hot Water Recirculating Pump 500899

Needless to say, water is precious and should not be wasted, no matter what water type of heating pump you set up at home. But with Watts 500899, you are surely going to witness more pleasant days in the long-run. Believe it or not, this water pump can help one save up to 15,000 gallons or more on a yearly basis. This means you can make enough savings on your water bill and this is no less good news for all homeowners. watts hot water recirculating pump reviewBesides, it has operations that are quite easy to comprehend and therefore, leaves the user in no confusion. Nothing can also match up to its installation procedure as it does not take even an hour. Whether you take help of a professional or do it yourself, it hardly takes any effort to install it.

Watts 500899 is no doubt a cost-effective water pump and comes with a timer as well. So, when you are off to sleep, you just don’t need to think whether you can wake up once again to shut it off. Just set the time and simply doze off with pleasure. Well, some DIY homeowners have stated the necessity to make use of male adaptors on the water heater feeds so that installation gets easier.

So, there cannot be any reconsideration while deciding to buy this product. Get it today and feel the difference.


  • Comes with full Thermal protection
  • Runs on 7.5 Ampere motor that makes it powerful
  • Very easy to install


  • Not suitable for heavy-duty jobs
  • Not so long-lasting

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Taco 006-B4 Bronze Circulator Pump

Whether you are living in a hilly area or a place where summer rules, the one and only hot water recirculation pump that can be considered is Taco 006. What makes it a high-scoring appliance is its ability to circulate both hot and chilled water in not only open but closed loop applications. Besides, this versatile taco recirculation pump can be used for multiple applications like hydro air heating or cooling, hot water recirculation at apartments, hydronic heating, water source heat pumps, solar systems etc. how does a recirculating pump workThis cartridge is replaceable and comprises all the moving parts that would be required in times of service. Furthermore, it has a compact design that takes very little space to set up.

With a head range measuring 0 to 9 feet, Taco hot water recirculating pump comes with an impressive flow range of 0 to 10 GPM. Where its minimum Fluid Temperature is 40F, its maximum Fluid Temperature can go up to 220F. With a maximum working pressure of 125 PSI, it scores high on efficiency. What also makes it a great pick for homeowners is its ability to operate without any noise. So, no matter at what speed it runs, it will bring no unnecessary noise. Made of premium quality bronze, it weighs 4.5 pounds and has a dimension of 5 x 4 x 7 inches. Requiring only 115 volts, it will not consume much electricity and is, therefore, a great energy saver for all 21st-century apartments.


  • Gives both hot and chilled water
  • Made of bronze and quite sturdy


  • Water often leaks and spills out of the cartridge

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Types of Hot Water Recirculating Pumps

To help you decide on the best type of hot water recirculating pump to use, check out how each type differs from one another.

Traditional Hot Water Recirculating Pumps

The traditional hot water recirculating pump system has its own return line. This connects the hot water pipes to the bathrooms and faucets, and then back to the water heater. The recirculating pump pulls the water from the fixture and into the water heater in order to create a loop. The pump’s hot water loop keeps the hot water accessible in the tap whenever you need it since it is kept warm in the hot water pipe.

There are also some traditional hot water recirculating pumps that include a built-in timer. This way, you can customize the working hours of the pump to save energy costs.

Instant Hot Water Recirculating Pumps

Unlike the traditional hot water recirculating pump, the instant hot water recirculating pump does not need a dedicated line to make a loop. This makes this pump system more ideal for some households and buildings since it is easier to install. In fact, this type of hot water recirculating pump can be installed on any kind of house. It can come from an over the water heater, or from under the sink.

Over the water heater

The pump is installed above the water heater while the check valve is installed far from the hot water heater under the sink. This setup creates the needed pressure to push the hot water into the water pipes.

Under the sink

The pump is installed far from the water heater under the sink. It pushes the hot water to the cold line to be accessible in all water fixtures.

On-Demand Hot Water Recirculating Pumps

Quite similar to the instant hot water recirculating pump, the on-demand pump is activated by its user. Once activated, it pushes the cold water to the hot water pipes then back to the cold water pipe and into the water heater. This creates a temporary loop to heat the water and become accessible in the entire house. This can be really cost-efficient though you still have to wait for the water to heat up.

How to Choose the Best Hot Water Recirculating Pump

Whenever you proceed to buy something best in the market, chances are that you might either get spoilt for choice or might be left perplexed in identifying the right option. Such might be the case for choosing the best recirculating pump for hot water, which is a reason why you need to know the key considerations. A little bit of research, a little bit of knowledge and some comparative reviews will certainly give you an idea of the best product in the market. But before you delve deep into those, here are a few things you must look out into the best rated hot water recirculating pumps.

Check the sturdiness of the material

While choosing the recirculating pump, it is very important to consider how sturdy its material is. This largely depends on the construction as to how it has been made by the manufacturers. For instance, circulators made of bronze and stainless steel are majorly used for recirculation applications in residences. In other words, if the material is lead-free, it will last longer.

Check the connection system

You must always remember that the residential circulators are usually fixed to supply piping. This is done with the support of flanges having sizes from ¾ to 1-0.5 inch. Also, materials of the flange must match up to those used for the pump. By using threaded connections, circulators can also be connected.

Check the pump size and flow rate

For any hot water recirculation pump, one should calculate its flow rate required to overcome the loss of pressure. Besides, you must check the balancing valves, mixing valves, check valves, heat exchangers and other fittings while measuring the size of a recirculation pump.

Check the Horsepower

It is also quite vital to consider the motor strength of a recirculation pump. This motor strength is the horsepower of a circulator pump that affects not only the flow rate directly but also its head loss performance.

Check Temperature Settings

Be wise in choosing such a recirculation pump that would let you choose the exact temperature in regard to the hot water coming out. This would keep you assured of the fact that you are getting water as per the temperature you desired.

Check whether it is User-friendly

No matter how technologically updated is the pump, it must be extremely user-friendly. After knowing all its functions, you must be able to operate it without any hassle. The easier you are able to operate, the more convenient it will be. You must also know when it has gone out of power and when you should switch it off.

Check its required maintenance

There are some inferior hot water recirculation pumps that require a lot of maintenance. In short, if you don’t maintain them well, they might not last long. So, you can always talk to some professional and get to know which models require less maintenance but are high on performance.

How to Install a Hot Water Recirculating Pump

When all you want is to enjoy some hot water but you don’t have the time and strength to prepare it, fret no more. Perhaps it’s about time you embrace the innovation that a hot water recirculating pump can give. With a hot water recirculating pump in your house, you don’t have to bother heating up some water on your stove anymore.

  1. All you have to do is install one, activate it and enjoy a hot water in the kitchen or in the bathroom. So, we already prepared some tips below on how you can install one in your house.
  2. Turn off the cold water pipe that connects to the water heater which is commonly installed on top of the water heater. Then, turn on the hot water fixture to check if the flow really stopped.
  3. Cut the flexible hot water supply which is connected to the hot side of the water heater. Be prepared to catch the residual water that will spill out of the pipe when cut.
  4. Set up your pump on how many times you want it to run using a programmer. The timer will automatically set the pump to work when you needed it the most.
  5. Screw the hot water pump to the hot side of the water heater where the hose is located. Make sure that the timer faces the direction where you can adjust it easily. You can use a plumber’s tape to tighten it down unless there’s already a rubber gasket in the pump fitting’s female nut.
  6. Connect the hot water line on top of the recirculating pump then tighten it down with a channel-type plier. You can also loop the flexible lines if needed then open the cold water pipeline again.
  7. Now, proceed to the sink that is installed farthest from the water heater then install the check valve. Be sure to turn off the water supply on both the hot and cold water supply using the valves under the sink.
  8. Screw the two water supply tubes from the sink to the outlets on top of the check valve. Take note that the hot water is on the left and the cold water is on the right outlet. Now, run the water on both tubes from the check valve to check if you’ve got the right ones.
  9. Once you’ve tightened down all connected tubes, mount the check valve on the wall. Use the provided screws included in the installation kit.
  10. Run the water on both lines to remove all the air out and check them for leaks or loose connections.

Benefits of Good Quality Hot Water Recirculating Pump

Just imagine how good you feel when you will be provided instant hot water, especially when you need it right at that moment. Well, you too can take this advantage by installing a recirculation pump that frees you from those long delays of getting hot water. Since a hot water recirculation pump does not depend on low water pressure, it takes almost no time to move water to the fixtures from a water heater. In fact, these advanced water heating solutions have been serving top-notch restaurants and hotels for years. Now, plenty of homeowners have started considering its uses and benefits.

If you are new to recirculation pump, you must first know its benefits so that it becomes easier for you decide whether you are ready to install it. So, let’s get to know why installing a recirculation pump can be beneficial:

High on Convenience

A big advantage of a hot water recirculation pump is that it delivers hot water immediately once the faucet is unlocked. Believe it or not, you won’t even waste a minute in getting hot water then and there. As the pump impeller is powered up by the motor, it spins in order to draw hot water into the fixtures and removes cold water out from the heater.

No Wastage of Water

Since hot water is delivered with a wink of an eye, there is hardly any water wasted. Once a recirculation pump is installed, you do not have to depend on the water flow to achieve the desired temperature. Rather, it is super advantageous, especially in areas where there is a shortage of water. So, where a circulation pump saves water to a good extent, it saves a good deal of time and money as well.

Saves Energy to a good extent

When recirculation systems pump on a continuous basis, they have the potential to use a good deal of energy. Pumps of modest size can range between 400 and 800 Kilowatt Hour per year if the pump is made to run continuously. So, you can stay assured of keeping the electricity bills low every month.

Easy to install

One of the world’s easiest jobs is installing a hot water recirculation pump. In fact, you hardly need any space for installation. Moreover, you will already have the required tools with which it will be easier to get the installation done. So, it would not be like those pumps that are designed for ordinary home plumbing systems.

So, you have come across the major benefits to install a hot water recirculating pump that will not only give you hot water at an instant but will let you save a good deal of energy and money. Now get one for your home and enjoy using hot water throughout all seasons.

Advantages and Disadvantages to getting a recirculating pump

To give you an unbiased set of statements about installing a hot water recirculating pump, these are some helpful Pros and Cons you should check out:


  • High demand for hot water – Even if you don’t usually use hot water in taking a bath, it’s still nice to have it accessible when you needed it the most. In fact, it’s safe to say that the demand for hot water everywhere is pretty high.
  • Cost and energy efficient – Some hot water recirculating pumps work only after being activated. Thus, it can help you save a lot of costs when paying water and electricity bills. After all, everyone should know how to conserve water and electricity.
  • Affordable home improvement – Some people don’t realize right away that investing for a hot water recirculating pump is a great idea. It is very handy and affordable at the same time.
  • Easy to install even with DIY – You don’t really need to be a pro when installing a hot water recirculating pump. It would only take a few hours to install it even by yourself.
  • Compatible on most plumbing systems – Hot water recirculation pumps today are compatible with most plumbing house systems. Thus, the compatibility is not a really big issue.


  • Can be a little expensive – From the materials used up to installing and making the pump work, you have to spend a quite big amount. Not to mention if you have a hot water recirculating pump that runs 24/7 to consume water and electricity.
  • Uses electricity to pump hot water – Even a hot water recirculating pump also uses electricity so it’s better to consider one that is programmable. Your bills can still go up even if some pump’s power consumption is almost the same as powering a single light bulb.
  • Delays cold water supply – Since the hot water and cold water pipelines are both used to produce hot water in the fixture, the cold water supply may be affected. As a matter of fact, some hot water recirculating pump users complain about its delay due to the pump.


If you are going with the idea of installing a recirculating pump to ensure that you get hot water all the time, believe it or not, you are doing the right thing. With such a modernized water heating system, you are not only going to have hot water instantly all the time but you can save on water cost and energy costs a good amount. Just make sure that you are choosing the right hot water recirculating pump with a good flow capacity and horsepower. Also, ensure that the connection is strong enough to let the pump operate without any complications. Once you have assured these, get the best hot water recirculating pump, install it well and enjoy fetching hot water day and night, whenever you need.

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Bill is a DIY plumber, handyman, and homeowner with more than a decade of experience. He has replaced and repaired sump pumps, backup pumps, float switches, check valves, and many other things around his family home. An engineer and tinkerer at heart, he is always looking to see how things work and taking on new home projects that help him grow his skillsets. He is a husband and father of two boys, has a bachelors degree in Computer Engineer and minor in Mathematics and likes to make homebrew beer in his free time.

      Sump Pump Advisor