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Home » Best Recirculating Pump For Tankless Water Heater 2022

Best Recirculating Pump For Tankless Water Heater 2023

December 18, 2022 by Editorial Team

If you have a tankless water heater, you may be wondering how you can best ensure that water flows smoothly throughout your home. One way to do this is to install a recirculating pump. A recirculating pump recirculates water continuously through your hot water heater and throughout your home, which means it has a constant flow of hot water, eliminating the need for you to turn on your hot water heater every time you turn on a faucet. Because you don’t have to turn on your tankless water heater to get hot water, you can use it less frequently.

Here are some features to look for when shopping for a recirculating pump for your tankless water heater.

# Preview Product Price
1 Watts Premier Instant Hot Water Recirculating Pump System with Built-In Timer 6 Watts Premier Instant Hot Water Recirculating Pump System with Built-In Timer 6″ X 6″ $180.00 Buy on Amazon
2 APCOM TV1 Instant Hot Water Recirculating Pump for Tankless Water Heaters APCOM TV1 Instant Hot Water Recirculating Pump for Tankless Water Heaters Price not available Buy on Amazon
3 KOLERFLO Water Recirculating Pump 3/4 Inch Circulating Water Pump for Water Heater System (RS15-6 SS Green) KOLERFLO Water Recirculating Pump 3/4 Inch Circulating Water Pump for Water Heater System (RS15-6 SS Green) $98.99 Buy on Amazon
4 Happybuy Recirculating Pump, 93W 110V Water Circulator Circulating Pump NPT 3/4 Happybuy Recirculating Pump, 93W 110V Water Circulator Circulating Pump NPT 3/4″ w/Brass Fittings, 3-speed Control Recirculation 9.5 Gpm RS15-6 for Electric Water Heater System $45.99 Buy on Amazon
5 POWERENG 115V Hot Water Circulating Pump 3/4 POWERENG 115V Hot Water Circulating Pump 3/4″ NPT 3-Speed Hot Water Recirculating Pump for Solar Heater/Faucet (Green) $59.99 Buy on Amazon
6 Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built in Recirculation 11.0 GPM - RTGH-RH11DVLP Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built in Recirculation 11.0 GPM – RTGH-RH11DVLP $1,754.00 Buy on Amazon
7 Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built-in Recirculation 10.0 GPM - RTGH-RH10DVLP Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built-in Recirculation 10.0 GPM – RTGH-RH10DVLP $1,543.27 Buy on Amazon
8 EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1 EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW – Quantity 1 $433.26 Buy on Amazon
9 PROZRTED Smart Instant Hot Water Recirculating Pump System 3 speed with Bulit-in Thermostat HBS24-12 PROZRTED Smart Instant Hot Water Recirculating Pump System 3 speed with Bulit-in Thermostat HBS24-12 $179.99 Buy on Amazon
10 Grundfos GRU-595916 595916 Grundfos GRU-595916 595916 $268.98 Buy on Amazon

Our Editor’s Best Recirculating Pump For Tankless Water Heater Reviews


Watts Premier Instant Hot Water Recirculating Pump System with Built-In Timer 6″ X 6″

 Watts Premier Instant Hot Water Recirculating Pump System with Built-In Timer 6

Key Features:

  • This recirculating pump for tankless water heater includes a pump with timer, two adapters with rubber washers, valve mounting screws, sensor valve, and two 12-inch supply lines.

  • This recirculating pump is designed for use with tankless water heaters. It is rated for 120 volts and has a weight of 8.5 pounds. The overall dimensions are 6.2 x 6 x 5 inches.

  • This recirculating pump for tankless water heater provides hot water at every faucet or shower when needed and helps eliminate wasted water.

  • This is a recirculating pump for a tankless water heater that is easy to install and does not require any maintenance.

  • This is a recirculating pump for a tankless water heater that has a 24-hour programmable timer. This means that you can set the pump to turn on at a certain time, and it will activate the pump when you need it.

$180.00 Buy on Amazon


APCOM TV1 Instant Hot Water Recirculating Pump for Tankless Water Heaters

 APCOM TV1 Instant Hot Water Recirculating Pump for Tankless Water Heaters

Key Features:

  • This recirculating pump is designed to provide instant hot water to any water source in your home, without the need to wait for the water to heat up. Enjoy the comfort and convenience of having hot water available whenever you need it.

  • This recirculating pump is designed to be energy efficient, reducing waste and costs associated with the consumption of water.

  • The recirculating pump for tankless water heater is a fully automatic operation that uses a built-in programmable timer to save time, money and energy.

  • This recirculating pump is designed for tankless water heaters and comes with a built-in programmable timer, braided hose, stainless/brass bypass valve, tee, and all necessary fittings. The pump installs at the water heater and the large bypass valve installs under the sink on the cold water line. The pump is for indoor installation only.

  • This recirculating pump is for tankless water heaters that don’t have a dedicated return line. You’ll need to get a professional to install it if the water line needs to be cut for the pump.

Price not available Buy on Amazon


KOLERFLO Water Recirculating Pump 3/4 Inch Circulating Water Pump for Water Heater System (RS15-6 SS Green)

 KOLERFLO Water Recirculating Pump 3/4 Inch Circulating Water Pump for Water Heater System (RS15-6 SS Green)

Key Features:

  • This recirculating pump is designed for tankless water heaters. It has a rated power of 93/67/46 W and an NPT 3/4 inch (19.05 mm) inlet/outlet. The voltage/frequency is 110-120V, 60Hz. The max pressure is 145 psi (10 bar), and the circulation pump has three-speed control. The flow is 36/29/20 LPM (9.5/7.66/5.28 GPM). The max head is 6/4.9/4 m (20/16/13 ft). The pump housing is made of aluminum, and the impeller is made of corrosion-resistant, composite, PES.

  • This recirculating pump for tankless water heater is easy to install, only requiring a wrench to connect the pump to the pipeline. It provides instant hot water, reducing the wait time from 2-3 minutes to only 15 seconds.

  • This recirculating pump is designed to prevent pipes from freezing in winter, especially in cold winter areas. If your pipes pass through the floor, the floor will also become warm.

  • The recirculating pump is designed to be high efficiency with low consumption. It is also high temperature resistant and features anti-fraying. The pump is also super silent and environmentally friendly. It is also designed to save energy and reduce the waste of cold water.

  • This is a recirculating pump for a tankless water heater. It is used to circulate water in city buildings, suburban villas, houses, and industrial equipment. It can also be used for air conditioning, boilers, solar circulating water, and hot water circulating warm.

$98.99 Buy on Amazon


Happybuy Recirculating Pump, 93W 110V Water Circulator Circulating Pump NPT 3/4″ w/Brass Fittings, 3-speed Control Recirculation 9.5 Gpm RS15-6 for Electric Water Heater System

 Happybuy Recirculating Pump, 93W 110V Water Circulator Circulating Pump NPT 3/4

Key Features:

  • This recirculating pump is designed for use with tankless water heaters. It has a 3/4 inch inlet and outlet, and features three-speed control. The pump housing is made of aluminum, and the impeller is made of corrosion-resistant composite. The shaft is made of 45# steel, and the bearing is made of carbon axia.

  • This recirculating pump is easy to install, and will save you the cost of a plumber. It will also provide instant hot water, instead of the 2-3 minutes it would normally take.

  • This recirculating pump is designed to prevent pipes from freezing in winter, and also to keep the floor warm if the pipes pass through it.

  • This recirculating pump is designed for tankless water heaters. It is high efficiency with low consumption. It is also high temperature resistant and features anti-fraying. High flow and leak-tightness make this pump super silent and environmental friendly.

  • This is a recirculating pump for a tankless water heater that can be used for a variety of applications. It is suitable for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on.

$45.99 Buy on Amazon


POWERENG 115V Hot Water Circulating Pump 3/4″ NPT 3-Speed Hot Water Recirculating Pump for Solar Heater/Faucet (Green)

 POWERENG 115V Hot Water Circulating Pump 3/4

Key Features:

  • This is a recirculating pump for a tankless water heater. It has a rated power of 93/67/46 W, and an NPT 3/4 inch (19.05 mm) inlet/outlet. The voltage/frequency is 110-120V, 60Hz. The max pressure is 145 psi (10 bar), and the pump has three-speed control. The flow is 36/29/20 LPM (9.5/7.66/5.28 GPM). The max head is 6/4.9/4 m (20/16/13 ft). The pump housing is made of aluminum, and the impeller is made of corrosion-resistant, composite, PES.

  • This recirculating pump is easy to install, and only requires a wrench to connect to the pipeline. It provides instant hot water, and only takes 15 seconds to get hot water.

  • This recirculating pump is designed to prevent pipes from freezing in winter, and also to keep the floor warm if the pipes pass through it.

  • This recirculating pump for tankless water heater is high efficiency with low consumption. High temperature resistance, anti-fraying, high flow and leak-tightness. Super silent, environmental friendly,saving energy, running power, reducing the waste of cold water and waiting time, suitable for water scarce areas, such as desert areas.

  • This recirculating pump is used for circulating water in city buildings, suburban villas, houses, and industrial equipment. It is also suitable for air conditioning, boilers, solar circulating water, and hot water circulating warm.

$59.99 Buy on Amazon


Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built in Recirculation 11.0 GPM – RTGH-RH11DVLP

 Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built in Recirculation 11.0 GPM - RTGH-RH11DVLP

Key Features:

  • This pump circulates hot water from your tankless water heater to your fixtures, so you don’t have to wait for the water to heat up. It also saves water by circulating it back into the tankless water heater instead of letting it go down the drain.

  • This recirculating pump is designed for tankless water heaters and is intended to help save on water and energy costs.

  • The recirculating pump for tankless water heater is a compact, space-saving design that is perfect for a tank replacement.

  • This is a recirculating pump for a tankless water heater that will shut down the unit and provide an error code if it detects a water or gas leak.

  • This recirculating pump is designed to help a tankless water heater meet hot water needs during peak times by automatically learning and adjusting its programming to match the water usage over time.

$1,754.00 Buy on Amazon


Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built-in Recirculation 10.0 GPM – RTGH-RH10DVLP

 Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built-in Recirculation 10.0 GPM - RTGH-RH10DVLP

Key Features:

  • A recirculating pump for tankless water heater is a device that helps to circulate hot water in your home without having to wait for the water to heat up or wasting water that is already hot.

  • This is a recirculating pump for a tankless water heater. It is high energy efficient and can save water, making it a low operating cost option.

  • This pump is designed to be compact and save space. It is perfect for replacing an old tank.

  • This pump is designed to detect leaks in your tankless water heater and shut the unit down to prevent further damage. It will also provide an error code to help you troubleshoot the problem.

  • This recirculating pump is designed to make sure that your tankless water heater always has enough hot water to meet your needs, even during peak times. It does this by tracking your water usage over time and automatically adjusting its programming to meet your needs.

$1,543.27 Buy on Amazon


EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW – Quantity 1

 EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1

Key Features:

  • A recirculating pump for tankless water heater is a device that helps to heat water on demand and maintain a consistent temperature. It continuously monitors water temperature and flow rates to ensure efficient and consistent performance.

  • This recirculating pump for tankless water heater is small and can be installed on the wall or at point of use.

  • This recirculating pump for a tankless water heater is designed to be more energy efficient than a traditional tank heater. It will only heat water when it is called for, rather than maintaining a constant temperature, which can save up to 50% in water heating costs according to the Department of Energy.

  • This recirculating pump is designed for use with a tankless water heater. It is ideal for providing hot water for whole home applications and can provide between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature.

  • This recirculating pump for tankless water heater has a limited lifetime warranty on electronics, exchanger and element. It is UL-499 certified and ETL Listed.

  • A recirculating pump for a tankless water heater requires three 40-amp double-pole breakers.

  • This recirculating pump is designed for tankless water heaters and requires a 200 amp electrical panel.

  • The ECOSMART tankless water heater is a recirculating pump that ensures you never run out of hot water. It is a highly efficient and compact unit that can be installed in any home.

  • A recirculating pump for tankless water heater can save up to 12 cubic feet of storage space by circulating hot water through your plumbing system so you always have hot water when you need it.

  • This recirculating pump for tankless water heater has digital temperature control in 1-degree increments, giving users complete control of hot water.

$433.26 Buy on Amazon


PROZRTED Smart Instant Hot Water Recirculating Pump System 3 speed with Bulit-in Thermostat HBS24-12

 PROZRTED Smart Instant Hot Water Recirculating Pump System 3 speed with Bulit-in Thermostat HBS24-12

Key Features:

  • This recirculating pump is designed to work with a tankless water heater. It has three modes: smart mode, energy-saving mode, and manual mode. The smart mode keeps the water heater at a constant temperature, while the energy-saving mode decreases the temperature when the hot water is not in use. The manual mode is the most energy-saving mode, and only starts the pump a few minutes before hot water is needed. It has three running speeds and a smart memory function that remembers the last settings when it was powered off.

  • This recirculating pump is designed to work with both tankless and tanked water heaters, and is said to be energy-saving. It is recommended that the pump be set to “manual mode” and started with the remote control. The pump will shut off automatically after 60 minutes.

  • This recirculating pump is designed for tankless water heaters. It is a high-speed pump with a high flow rate and lift. It is made of lead-free copper and is NSF certified. It is maintenance-free and easy to install.

  • This recirculating pump is designed for tankless water heaters and is more powerful and durable than traditional pumps. It is also super quiet, so you almost won’t hear it running. The pump comes with a 12 inch connection hose and can save you up to 10% on your water bill.

  • This recirculating pump is for a tankless water heater and has a built in check valve. The pump default temperature is 38 degrees Celsius off and 33 degrees Celsius on. When the water temperature in the pump is below 33 degrees Celsius, the pump will push the cold water back to the water heater. As the temperature hits 38 degrees Celsius, the pump will shut off automatically. A remote controller can be used to set a higher or lower water temperature (from 32 to 42 degrees Celsius). This remote controller is not included in this package and needs to be purchased separately.

  • This recirculating pump for tankless water heater has two advanced built-in high-accurate temperature sensors, one to measure the pipe water temperature and the other one to measure pump ambient air temperature. It protects your pipe from freezing and makes your installation easier. To avoid any water leaking, please make sure the plastic washers were not damaged and were installed correctly. Max. liquid temperature is 158 ℉(70℃).

  • This recirculating pump for a tankless water heater has a 2 year limited warranty. If the customer is not completely satisfied with the product, they can contact the customer service team for a satisfactory solution.

$179.99 Buy on Amazon


Grundfos GRU-595916 595916

 Grundfos GRU-595916 595916

Key Features:

  • This recirculating pump for tankless water heater features a timer, line cord, and 6-foot power cord.

  • This recirculating pump is for a tankless water heater and has a flow range of 0 to 9 U.S. gallons per minute and a head range of 0 to 6 feet.

  • This pump is designed to circulate water in a tankless water heater. It has a single phase motor that runs on 115-120 VAC, 60 hertz. The pump is rated for 16 amps.

  • The recirculating pump is a maintenance-free, low energy consumption, easy to install, and quiet running pump that is used for tankless water heaters. It has a 3/4-Inch M by 3/4-Inch FNPT connection.

  • This recirculating pump is designed for heating systems, and can also be used for circulating hot water and cooling and air conditioning systems.

$268.98 Buy on Amazon


Best Recirculating Pump For Tankless Water Heater Buying Guide

Before choosing the best recirculating pump you should consider following options:

1. Size: Don’t overlook the size of the pump you need. The pipe and fittings you use will dictate the size of the pump you need.

2. Speed: Different pumps are available with different speeds. Some pumps are single speed while others are variable speed.

3. Power: The horsepower of a pump is of prime importance. The higher the horsepower, the more efficient the pump is.

4. Suction Lift: Suction lift is the vertical distance from the point of suction to the center of the pump.

5. Discharge Lift: Discharge lift is the vertical distance from the point of discharge to the center of the pump.

6. Noise Level: Some pumps are noise-free while others are extremely noisy. Check the noise levels of the pump before you buy it.

7. Flow Rate: The flow rate is calculated by multiplying the discharge head by the speed of the pump.

8. Power Consumption: The higher the power consumption, the higher the cost of operation. Look for a pump that has the lowest power consumption.

9. Cost of Installation: The cost of installation will vary from one pump to the other. Choose a pump that has the lowest installation cost.

10. Lifespan: Over the lifespan of the pump, you will incur significant savings. Choose a pump that has the longest lifespan.

11. Warranty: The warranty that a pump offers will indicate the quality of the pump. Choose a pump that offers a warranty that is in-line with the industry standards.

12. Noise Reduction: It is important to get a pump that offers noise reduction. You can get such a pump by looking for one with a noise reducing casing.

13. Maintenance: Maintenance is an important part of owning a pump. You have to regularly maintain the pump you purchase.

14. Cost of Operation: The total cost of operation for a pump includes the installation cost, maintenance cost, and energy cost.


Recirculating Pump For Tankless Water Heater FAQs

1. What are the benefits of using a recirculating pump for a tankless water heater?

There are several benefits to using a recirculating pump with a tankless water heater. One is that it can help to reduce the amount of time that it takes for hot water to reach the fixtures in your home. This is because the pump will circulate the hot water from the heater to the fixtures, rather than just letting it sit in the heater. Additionally, a recirculating pump can help to reduce the amount of water that is wasted when you are waiting for hot water. Finally, a recirculating pump can also help to improve the overall efficiency of your tankless water heater by keeping the water in the heater hot and ready to use.

2. What are the different types of recirculating pumps available?

Pump types include centrifugal, jet, and submersible. Centrifugal pumps are the most common type of recirculating pump. Jet pumps use a high-pressure jet of water to draw water from a lower-pressure source. Submersible pumps are designed to operate underwater.

3. How do you properly install a recirculating pump for a tankless water heater?

There is no definitive answer to this question as it depends on the specific recirculating pump and tankless water heater model. However, in general, you will need to connect the recirculating pump to the cold water inlet and the hot water outlet of the tankless water heater. You will also need to connect the recirculating pump to the city water supply and the return line back to the tankless water heater.

4. What are the most common issues that can occur with recirculating pumps for tankless water heaters?

The most common issues that can occur with recirculating pumps for tankless water heaters include leaks, noisy operation, and loss of water pressure.

5. How can you troubleshoot and resolve issues with a recirculating pump for a tankless water heater?

There are a few things you can do to troubleshoot and resolve issues with a recirculating pump for a tankless water heater:1. Check the power supply to the pump. Make sure the pump is plugged in and that the circuit breaker has not tripped.2. Check the water supply to the pump. Make sure the water shut-off valve is open and that there is enough water pressure.3. Check the pump itself. Make sure the inlet and outlet valves are open and that there is no blockage in the pump.4. If the pump is still not working, you may need to replace it.


Conclusion

There are many great recirculating pump for tankless water heater on the market. Our list of the best recirculating pump for tankless water heater will help you save time researching and choosing the best one for you.

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