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20 Best Recirculating Pump For Tankless Water Heater (2022 Updated)

A recirculating pump is a device that helps circulate water in a tankless water heater system. The pump helps to evenly distribute hot water throughout the system, and it also helps to keep the water in the system hot.

The pump is typically located near the water heater, and it is connected to the water heater via a pipe.

20 Best Recirculating Pump For Tankless Water Heater

1. Grundfos 595916 Comfort System Hot Water Recirculation Pump (UP15-10SU7PTLC)

Grundfos 595916 Comfort System Hot Water Recirculation Pump (UP15-10SU7PTLC)

  • No return line required.
  • Installs in less than one hour.
  • No electricity needed under the sink.
  • Built-in timer & line cord.

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Product Details

Specifications

Details
Speed Number 1
Max flow 6.16 US gpm
Head max 5.25 ft
Approvals on nameplate UL,CSA
Maximum operating pressure 145.04 psi

Reviews From Real Customers

K.P.
Maurice M
randyk1ng

2. Grundfos UP15-10SU7P TLC 115V Comfort Hot Water Recirculation Pump

Grundfos UP15-10SU7P TLC 115V Comfort Hot Water Recirculation Pump

  • 1/25 HP Motor
  • Cast Iron Housing
  • With Line Cord and Timer

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Voomi Supply

Product Details

Specifications

Details
Flow Rate 0 to 6.3 GPM
Casing Material Stainless Steel
Shaft Material Ceramic
Power Rating 1/25 HP
Pressure Rating 145 PSI

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M.M.

3. Taco 005-SF2 Stainless Steel Circulator Pump

Taco 005-SF2 Stainless Steel Circulator Pump

  • 1/2″

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Product Details

Specifications

Details
Voltage 115V
Housing Material Stainless steel
Phase – Pumps 1
Phase 1
Inlet/Outlet Size 3/4 in to 1-1/2 in

Reviews From Real Customers

Steeeeve-o
1.
RiverbendNOLA

4. Watts 500800 Hot Water Recirculating System with Built-in Timer

Watts 500800 Hot Water Recirculating System with Built-in Timer

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Amazon.com

Product Details

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zenmaster318
Onewizard
Terrell P.

5. Taco 007-SF5 Circulator Pump

Taco 007-SF5 Circulator Pump

  • Stainless steel body (shown as cast iron).
  • Unique, 00 family replaceable cartridge contains all of the moving parts so you can service it easily instead of replacing the entire unit.
  • Standard High Capacity Output.
  • Compact Design.
  • Quiet, Efficient Operation.

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Product Details

Specifications

Details
Voltage 115V
Housing Material Stainless steel
Phase 1
Phase – Pumps 1
Inlet/Outlet Size 3/4 in to 1-1/2 in

Reviews From Real Customers

G.F.
otto5050
Leaf Eriksen

6. Taco Oncommand 006 Circulator Pump, 1/2 in. Male NPT with Plumbing Kit, 1/40 HP

Taco Oncommand 006 Circulator Pump, 1/2 in. Male NPT with Plumbing Kit, 1/40 HP

  • Runs only when activated by the user.
  • Is available 24 hours per day / 7 days a week.
  • Automatically senses when water is hot enough.
  • Saves water, energy and money.
  • Saves construction costs; No new return line needed and no need to drain the system.

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SupplyHouse.com
National Pump Supply

Product Details

Specifications

Details
Housing Material Steel
Amperage (amps) 0.52
Cord Length (ft.) 6
Impeller Material Noryl
Inlet Connection Threaded male

Reviews From Real Customers

Craftzman
George Construction
Bicycle Bill

7. Taco 0010-F3-1IFC Circulator Pump

Taco 0010-F3-1IFC Circulator Pump

  • Maintenance freeQuiet, efficient operationDirect drive
  • Low power consumptionSelf lubricating, No mechanical sealStandard high capacity output
  • Compact designWide range of applicationsCast Iron or Stainless Steel construction, Flanged connections

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Product Details

Specifications

Details
Voltage 115V
Housing Material Cast iron
Phase – Pumps 1
Phase 1
Inlet/Outlet Size 3/4 in to 1-1/2 in

Reviews From Real Customers

Wise Guy
Moneysaver
Mstrmac

8. Grundfos 98420222 Comfort PM AutoAdapt Recirculation Pump Sweat, 1/2-Inch

Grundfos 98420222 Comfort PM AutoAdapt Recirculation Pump Sweat, 1/2-Inch

  • Three modes: AutoAdapt, temperature, and 100%
  • AutoAdapt mode learns and adapts to consumption patterns
  • ECM permanent magnet motor
  • Head, max: 3.9-Feet
  • 115V, Auto, 1/2 Sweat, 6ft. line cord

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SupplyHouse.com

Product Details

Specifications

Details
Speed Number 1
Head max 5.25 ft
TF class 95
Approvals on nameplate UL,CSA
Maximum operating pressure 145.04 psi

Reviews From Real Customers

Erv.
PoisedPeacock-46896

9. Taco 008-CT-USK Pump with Under Sink Kit, 1/2″ Male NPT, 1/25 HP

Taco 008-CT-USK Pump with Under Sink Kit, 1/2

  • Runs only when activated by the user.
  • Is available 24 hours per day / 7 days a week.
  • Automatically senses when water is hot enough.
  • Saves water, energy and money.
  • Saves construction costs; No new return line needed and no need to drain the system.

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Supply Online

Product Details

Specifications

Details
Housing Material Steel
Amperage (amps) 0.52
Cord Length (ft.) 6
Impeller Material Noryl
Inlet Connection Threaded male

Reviews From Real Customers

Mike J P
Goose Bane
garrys.2013

10. Taco 006 ST4 Stainless Steel Circulator

Taco 006 ST4 Stainless Steel Circulator

  • Stainless steel
  • Max pressure: 125 psi
  • Connection type: threaded
  • Temperature range: 40 – 220 degrees F

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Product Details

Specifications

Details
Motor Type Single Speed
Connection Type NPT
DHW Compatible Yes
Maximum Head 9 Feet
Maximum Flow Rate 10 GPM

Reviews From Real Customers

G.M.
M.B.

11. Taco 0011-F4 Hydronic Circulating Pump,Flanged,1/8HP

Taco 0011-F4 Hydronic Circulating Pump,Flanged,1/8HP

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Product Details

Specifications

Details
Compatible Intake Pipe Size 1 1/2 in, 1 1/4 in, 1 in, 3/4 in
Connection Type Flange
Face to Face Dimension 6 1/2 in
Flange or Union Included No
For Use With Potable Systems Yes

Reviews From Real Customers

CFR
B.E.H.

12. Bell & Gossett Hot Water Circulator Pump Model NRF-22 115V

Bell & Gossett Hot Water Circulator Pump Model NRF-22 115V

  • 1/25 hp 115 Volts, 0.80 Amps.
  • Max. Temp. 240° F.
  • Max. Working Pressure 150 PSI.
  • Shut-Off 15 Ft.
  • Impedance Thermal Protection.

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Electric Motor Warehouse

Product Details

Specifications

Details
Product Dimensions 7 x 5.5 x 6.5 inches
Is Discontinued By Manufacturer No
Style Circulator Pump
Power Source Battery Powered
Voltage 115 Volts

Reviews From Real Customers

The Cheetah
Randy the hydronics guy
RD the Hydronics Guy

13. Taco 008-F6 Cast Iron Circulator, 1/25 HP

Taco 008-F6 Cast Iron Circulator, 1/25 HP

  • Quiet, Efficient Operation Unique Replaceable Cartridge Design-Field Serviceable.
  • Direct Drive-Low Power Consumption Self-Lubricating.
  • No Mechanical Seal.
  • Unmatched Reliability –Maintenance Free Universal Flange-to-Flange Dimensions.
  • Cast Iron This product runs using a 0.

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Newegg.com – zoro

Product Details

Specifications

Details
Voltage 115V
Housing Material Cast iron
Phase 1
Phase – Pumps 1
Inlet/Outlet Size 3/4 in to 1-1/2 in

Reviews From Real Customers

BillJrBoy
Esotericarl

14. Watts Brass Hot Water Recirculating System

Watts Brass Hot Water Recirculating System

  • Conserve Water
  • Save Money – Up to 10% of Your Water Bill
  • Maintenance Free
  • Install in Less than One Hour
  • 24 hour programmable timer activates pump only when you need it

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Product Details

Specifications

Details
Brand Name Watts
Product Type Hot Water Recirculating System
Number in Package 1 pk
Water Heater Type Electric or Gas
Height 8.1 in.

15. Watts 500800 Instant Hot Water Recirculating Pump System with Built-in Timer

Watts 500800 Instant Hot Water Recirculating Pump System with Built-in Timer

  • Provides Hot Water At Every Faucet Or Shower When Needed And Helps Eliminate Wasted Water
  • Voltage: 120 Volts, Item Weight: 8.5 Pounds. Overall Dimension: 6.2 X 6 X 5 Inches
  • Kit Includes A Pump With Timer With 10′ Cord, 2 Adapters With Rubber Washers, Valve Mounting Screws, Sensor Valve, And Two 12-inch Supply Lines
  • 24-hour Programmable Timer Activates Pump When You Need It
  • Easily Installs To Existing Plumbing And Is Maintenance-free

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litvon

Product Details

Specifications

Details
Voltage 120 volts
Overall Dimension 6.2 x 6 x 5 inches
RECIRCULATING PUMP WITH TIMER 24

16. Watts (500800) Instant Hot Water Recirculating System

Watts (500800) Instant Hot Water Recirculating System

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Sears
Bonanza – IsoPure Water

Product Details

Specifications

Details
Item traits 8.0
Weight Unit lb

17. Taco 007-F5 Cast Iron 1/25 HP Circulator Pump

Taco 007-F5 Cast Iron 1/25 HP Circulator Pump

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Product Details

Specifications

Details
Voltage 115V
Housing Material Cast iron
Phase 1
Phase – Pumps 1
Inlet/Outlet Size 3/4 in to 1-1/2 in
Pump Type In Line, Wet Rotor
Connection Style Flange
Max. GPM @ Head 22 gpm @ 1 ft
Min. GPM @ Head 4 gpm @ 9 ft
Shut-Off 10 ft
Shaft Material Ceramic
Voltage – Pumps 115V AC
Number of Speeds 1
Thermal Protection Impedance
Face to Face Dimension 6 3/8 in
RPM 3,250 RPM
Pump Mount In Line
HVAC Circulating Pump Type Hydronic Circulating Pump
Max. Temp. 240 Degrees F
Amps 0.7
Mechanical Seal No
Drive Type Direct
Best Efficiency GPM @ Head 12 gpm @ 7 ft
Standards UL-CUS
Housing Material – Pumps Cast Iron
Includes Flange Gaskets
Loop Configuration Closed
Max. Operating Pressure 125 psi
Flange/Union Included No
Impeller Material Polypropylene
Length 6 1/8 in
Overall Width 4.75 in
For Use With Potable Systems
Overall Length 6.13 in
Length (Straight Wireway) 6 1/8 in
For Use With Potable Systems Yes
Minimum Media Temperature 40 Degrees F
Maximum Flow Rate @ 15 Feet of Head 0 gpm
Maximum RPM 3,250 RPM
Maximum Flow Rate @ 5 Feet of Head 15 gpm
Series Family 00
Maximum Operating Pressure 125 psi
Brand and Connection Combo Broad Taco, Flanged
Maximum Flow Rate @ 50 Feet of Head DELETE
Phase and Brand TACO Single Phase
Rotor Type Wet
Pump Housing Material Cast Iron
Body Gasket Material EPDM
Compatible Intake Pipe Size 3/4 in, 1 in, 1 1/4 in, 1 1/2 in
Flange or Union Included No
Maximum Flow Rate @ 10 Feet of Head 0 gpm
Maximum Feet of Head 10 ft
Brand and Connection Combo TACO , Flange Connection
Connection Type Flange
Compatible Discharge Pipe Size 3/4 in, 1 in, 1 1/4 in, 1 1/2 in
Maximum Media Temperature 230 Degrees F
Horsepower 1/25
Nameplate Voltage 115V AC
Frequency 60 Hz
Maximum Flow Rate @ 1 Feet of Head 22 gpm
Country of Origin (subject to change) United States

Reviews From Real Customers

bossnme
Benjy
doug

18. Taco 006-ST4-1 Potable Circulating Pump,

Taco 006-ST4-1 Potable Circulating Pump,

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Zoro
National Pump Supply
Sears – SIM Supply

Product Details

Specifications

Details
Voltage 115V
Housing Material Stainless steel
Phase 1
Phase – Pumps 1
Inlet/Outlet Size 3/4 in

19. NPT 3/4” Hot Water Circulation Pump 3-Speed Domestic Circulator Pump 110-120V

NPT 3/4'' Hot Water Circulation Pump 3-Speed Domestic Circulator Pump 110-120V

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Details
Assembled Product Weight 5.51 lb

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dynamodan
tiner7329
brandtsfish

20. Grundfos 99412493 Comfort 10-16 T PM BU/LC Recirculating Domestic Hot Water Pump

Grundfos 99412493 Comfort 10-16 T PM BU/LC Recirculating Domestic Hot Water Pump

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SupplyHouse.com
ACWholesalers.com
Build.com

Product Details

Specifications

Details
Speed Number 1
Head max 5.25 ft
TF class 95
Approvals on nameplate UL,CSA
Maximum operating pressure 145.04 psi

Reviews From Real Customers

Sneaky
BIPI
V2 Skater

Conclusion

The recirculating pump for tankless water heater is a great way to ensure that your hot water is always available when you need it. It is a simple device that can be installed in your home in just a few minutes, and it will provide you with an endless supply of hot water.

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