Best Recirculating Pumps for Tankless Water Heaters

Best Recirculating Pumps for Tankless Water Heaters

  • Tankless water heaters are popular for their energy efficiency and durability. They can even perform more efficiently with the help of a recirculation pump. In this article, we’ll be exploring seven of the best recirculating pumps for tankless water heaters.

It’s a hard one to take in, but the reality of our world is that people are slowly forgetting about tank-style water heaters, and it’s only a matter of time before tankless water heaters completely replace them. Don’t get it twisted – tank-style water heaters still come in handy. Some old timers still prefer using them; they’re more affordable and work well.

On the other hand, tankless water heaters are the town’s talk. They’ve grown more popular in recent years thanks to their energy efficiency, durability, and ease of use. Although they may be slightly more expensive, that hasn’t stopped people from heavily investing in them because they’re assured of getting the best value.

Tankless water heaters have become increasingly popular due to their energy efficiency and on-demand hot water supply. However, they can have a slight drawback – delayed hot water delivery. This is where recirculating pumps come in handy.

By constantly circulating hot water through the pipes, they eliminate the need for waiting and provide instant hot water at any faucet. To help you make an informed decision, we have compiled a list of the seven best recirculating pumps for tankless water heaters, each offering unique features and advantages.

Best Recirculating Pumps for Tankless Water Heaters

Grundfos 595916 Comfort Series Recirculation Pump

The Grundfos 595916 Comfort Series is a top contender, known for its exceptional performance and reliability. This recirculating pump utilizes an advanced sensor and timer system, intelligently adapting to your hot water usage patterns. It efficiently recirculates hot water, ensuring minimal energy wastage. Its whisper-quiet operation and compact design can easily be installed under sinks or near water heaters. Additionally, it’s low maintenance requirements and durable construction make it a long-lasting investment.

Whether upgrading your home’s plumbing system, renovating an existing space, or seeking a more sustainable and cost-effective solution, the Grundfos 595916 Comfort Series offers numerous benefits. With its cutting-edge technology, this pump significantly reduces water waste and energy consumption, lowering utility bills and benefiting the environment.

Its ease of installation and low maintenance requirements make it a practical and attractive option for homeowners and contractors alike. The Grundfos 595916 Comfort Series is an excellent choice for anyone seeking a high-performance, reliable, eco-friendly recirculation pump.


  • Energy-efficient operation with sensor and timer system
  • Whisper-quiet performance
  • Easy installation
  • Compact design
  • Low maintenance
  • Durable construction


  • Higher upfront cost compared to other models
  • Limited compatibility with certain plumbing setups

Taco 006-B4 Bronze Circulation Pump

The Taco 006-B4 Bronze Circulator Pump is a reliable and cost-effective option. Featuring a powerful 1/40 HP motor, it effectively circulates hot water throughout your plumbing system. Its durable bronze construction ensures longevity, and the pump is designed for easy installation. The compact size allows for flexible mounting options.

With its self-lubricating design, maintenance is hassle-free. The Taco 006-B4 operates quietly, making it an ideal choice for residential use. Its low power consumption also helps reduce energy costs. Overall, the Taco 006-B4 Bronze Circulator Pump is a dependable choice for any hot water circulation needs.


  • Powerful motor
  • Efficient water circulation
  • Durable bronze construction
  • Self-lubricating for low maintenance requirements
  • Compact design


  • Limited control options due to lack of advanced features
  • It may produce some noise during the operation

Watts Premier Instant Hot Water Recirculating Pump

The Watts Premier Instant Hot Water Recirculating System is popular among homeowners. This pump offers an energy-efficient solution with its user-friendly programmable timer, allowing you to schedule hot water circulation based on your needs. It features a bypass valve for easy installation and adjustable speed settings to customize water flow. The system’s compatibility with tankless water heaters makes it a versatile option.


  • Energy-efficient operation with a programmable timer
  • Bypass valve for easy installation
  • Adjustable speed settings for custom water flow
  • Compatible with tankless water heaters for versatile application


  • Requires professional assistance with installation
  • It may consume more energy than other models

Laing LHB08100092 AutoCirc Recirculation Pump

The Laing LHB08100092 AutoCirc Recirculation Pump combines efficiency with convenience. It employs an innovative built-in temperature sensor and timer, ensuring hot water is readily available when needed. The pump’s compact design and simple installation process make it an excellent choice for retrofitting existing plumbing systems. It’s low energy consumption and quiet operation are further advantages.

The AutoCirc pump is also environmentally friendly, as it eliminates the wasted water that typically goes down the drain while waiting for hot water to arrive. This pump is ideal for environmentally conscious people who want to conserve water and energy.


  • Low energy consumption
  • Quiet operation
  • Easy installation for retrofitting
  • Built-in temperature sensor


  • The sensor may require occasional adjustments
  • Limited control options

Bacoeng Hot Water Recirculation Pump

The Bacoeng Hot Water Circulation Pump is a budget-friendly option without compromising performance. It features a powerful motor that efficiently circulates hot water, eliminating long waiting times. With its stainless steel construction, the pump is resistant to corrosion and suitable for various water heating systems. The user-friendly interface and straightforward installation process make it accessible to homeowners.


  • Stainless steel construction
  • User-friendly interface
  • Budget-friendly option


  • Shorter lifespan
  • Occasional vibrations


Recirculating pumps are perfect for anyone who wants to save energy and money on tankless water heater operations. Tankless water heaters are naturally energy-efficient. However, they perform even more efficiently when you add recirculating pumps. It may be hard to get the perfect recirculating pump for your tankless water heater, so we hope we’ve saved you the stress by providing you with a list of the best recirculating pumps for tankless water heaters.

Frequently Asked Questions

How do recirculating pumps work with tankless water heaters?

Recirculating pumps maintain a constant flow of hot water throughout the plumbing system, eliminating the need to wait for hot water. They work by recirculating the already heated water back to the water heater, ensuring instant hot water at the faucet.

Are recirculating pumps compatible with all tankless water heaters?

Yes, recirculating pumps are compatible with most tankless water heaters and are very easy to install. However, checking the manufacturer’s specifications and guidelines is essential to ensure compatibility before purchasing.

Can I install a recirculating pump myself?

While some recirculating pumps come with user-friendly installation kits, consulting a professional plumber for proper installation is recommended. They have the expertise to ensure the pump is correctly integrated into your plumbing system.

Are recirculating pumps energy-efficient?

Yes, recirculating pumps are designed to be energy-efficient. Minimizing the time your water heater operates and recirculating already heated water, they help conserve energy and reduce utility costs.

Can recirculating pumps be used in commercial and residential settings?

Absolutely! Recirculating pumps are suitable for both residential and commercial applications. They provide instant hot water in homes, hotels, restaurants, and other establishments.