Finding the best hot water recirculating pump for tankless systems can enhance your home's comfort and efficiency.
Imagine it's a chilly morning in San Francisco. You step into the shower, shivering, only to be greeted by ice-cold water for what seems like an eternity. You twist the faucet, hoping for warmth, but it feels like time stands still. This scenario is all too common when you have a traditional tankless water heater without a recirculating pump. Thankfully, hot water recirculating pumps for tankless systems can solve this problem, providing you with instant hot water at every faucet in your home.
In this comprehensive review, I'll explore some of the best hot water recirculating pumps available. I'll share insights into their features, benefits, and drawbacks to help you make an informed purchase. So, let’s dive in!
Table of Contents
Watts Heat H2O Hot Water Recirculation System
Price: $268.00
The Watts Hot Water Recirculation System is an innovative solution that utilizes thermal bypass technology to deliver hot water almost instantly. It ensures that you won’t have to wait long for hot water at any faucet or shower, significantly enhancing your comfort. The sensor valve opens when water cools down in the hot water line, pushing it back to the water heater until it reaches a temperature of 98°F. This system is not designed for tankless water heaters, so keep that in mind when considering your options.
Installation is a breeze, operating on 120V and requiring no additional electricity or return lines. Once set up, you can expect a maintenance-free experience. The system includes everything needed for installation, such as a heavy-duty stainless steel pump head and aluminum housing. Plus, it can save you significant amounts of water—up to 15,000 gallons a year—by providing hot water quickly, reducing wastage.
Pros:
- Instant hot water delivery.
- Easy DIY installation.
- Significant water savings.
- Programmable timer for customizable operation.
- Durable materials for longevity.
Cons:
- Not compatible with tankless water heaters.
- Higher initial investment.
- Requires some plumbing knowledge for installation.
- May need occasional adjustments.
- Limited to specific water systems.
Recommendation:
The Watts Heat H2O system is ideal for homeowners who want instant hot water at their faucets and value water conservation. Its ease of installation and durability makes it a smart investment for those seeking efficiency.
CrestWave Hot Water Recirculating Pump
Price: $61.99
The CrestWave Hot Water Recirculating Pump is a reliable option for those who need instant hot water throughout their home. With a powerful 125W motor, this pump is designed to last, boasting a heavy-duty stainless steel pump head and aluminum housing that resists corrosion and stains. The dual control modes—manual and automatic—allow for flexibility, making it suitable for various needs. Whether you want constant circulation during winter or energy conservation, this pump has you covered.
Operating at a voltage of 110-120V, the CrestWave can handle a maximum flow rate of 30 liters per minute, making it efficient for household use. Its quiet operation at just 25dB ensures that it won’t disturb your peace while providing consistent hot water. Installing this pump is straightforward, requiring only a wrench to connect it to your existing piping, making it a user-friendly choice for many homeowners.
Pros:
- Durable and corrosion-resistant materials.
- Dual control for energy savings.
- Quiet operation.
- Simple installation process.
- Versatile for different applications.
Cons:
- Limited to specific water heater systems.
- Lower flow rate compared to some competitors.
- Some users report difficulty in finding replacement parts.
- May require professional installation for optimal performance.
- Not compatible with all plumbing systems.
Recommendation:
The CrestWave is perfect for those who want flexibility and reliability in their water heating solution. Its affordability and ease of installation make it an attractive choice for budget-conscious homeowners.
VIVOSUN 800GPH Submersible Pump
Price: $24.99
The VIVOSUN Submersible Pump is an excellent budget-friendly option for those looking for an effective hot water recirculation solution. With a maximum flow rate of 800 GPH and a powerful 24W motor, it’s designed for a variety of applications, including aquariums and fountains. It features adjustable flow rates and a detachable design for easy cleaning, making it a practical choice for homeowners who want a hassle-free experience.
At just 4.33×3.5×4.1 inches, this pump is compact yet powerful, capable of handling a maximum lift height of 10 feet. Its energy-efficient operation and easy installation process make it suitable for users of all skill levels. The pump is versatile enough for use in hydroponic systems, irrigation, and more, catering to a wide range of needs.
Pros:
- Highly affordable.
- Adjustable flow rate for versatility.
- Compact and easy to hide.
- Detachable for easy cleaning.
- Low energy consumption.
Cons:
- Limited maximum flow rate.
- May not be suitable for large homes.
- Requires manual adjustments for optimal performance.
- Short power cord may limit placement options.
- Not specifically designed for hot water systems.
Recommendation:
The VIVOSUN Submersible Pump is ideal for budget-conscious individuals who need an efficient solution for smaller applications. Its versatility and compact design make it a valuable addition to any household.
PULACO 400GPH Submersible Water Pump
Price: $18.99
The PULACO Submersible Water Pump is a fantastic option for those who need a quiet yet effective water circulation solution. This pump operates smoothly and quietly, ensuring a serene environment. Its multi-functional design allows it to be used for various applications, from aquariums to small fountains and hydroponics. With a maximum flow rate of 400 GPH and a lift height of 6.6 feet, it’s suitable for smaller systems.
Installation and cleaning are straightforward, as it features a flexible structure design that can be disassembled without tools. The adjustable flow valve allows users to customize the water flow according to their specific needs. It’s a great choice for anyone looking to create a peaceful aquatic environment or enhance their garden’s aesthetics.
Pros:
- Extremely quiet operation.
- Multi-functional for various uses.
- Easy tool-free cleaning.
- Adjustable flow rates.
- Affordable price point.
Cons:
- Limited flow rate for larger applications.
- May struggle with high-temperature water.
- Could require additional fittings for some setups.
- Not designed for heavy-duty use.
- Short power cord may limit placement options.
Recommendation:
The PULACO Pump is perfect for individuals seeking a quiet, affordable solution for smaller applications. It’s great for aquariums and ornamental fountains, offering excellent value for its price.
Wassermann Instant Hot Water Recirculating Pump Kit
Price: $174.99
The Wassermann Instant Hot Water Recirculating Pump Kit is designed for those who want immediate access to hot water at every faucet. Its thermal bypass technology ensures hot water flows rapidly without the need for a return line or under-sink outlet. This convenience eliminates long waits for hot water, enhancing your daily routines.
Featuring an adjustable temperature sensing bypass valve, this system allows you to regulate water temperature easily. It includes all necessary components for installation, making it a user-friendly choice. Moreover, its ultra-quiet operation means you can enjoy the benefits without being disturbed by noise. This pump is perfect for anyone looking to improve their home’s hot water efficiency.
Pros:
- Instant hot water delivery.
- Adjustable temperature settings.
- Easy installation with all components included.
- Ultra-quiet operation.
- Durable design for long-lasting use.
Cons:
- Requires a specific setup for optimal performance.
- Higher price point compared to simpler models.
- May need professional installation.
- Limited to certain plumbing configurations.
- Could be overkill for smaller households.
Recommendation:
The Wassermann Instant Hot Water Recirculating Pump is ideal for homeowners who prioritize convenience and efficiency. Its advanced features and easy installation make it a great addition to any home.
TOPWAY 3/4" NPT 110V Hot Water Circulation Pump
Price: $59.99
The TOPWAY Hot Water Circulation Pump is an excellent choice for those looking for a reliable and efficient pump for their water heater system. It features a robust design with a maximum flow rate of 30 liters per minute and a liquid temperature range that accommodates a variety of hot water needs. The three-speed settings allow users to customize the pump’s power according to their preferences, making it a versatile option.
This pump is built with a cast iron body and aluminum housing, ensuring durability and resistance to wear. Its low noise levels and environmental protection features set it apart from other models in its category. Furthermore, easy installation means you can have hot water circulating in no time, making it a practical choice for many households.
Pros:
- Three-speed settings for customizable performance.
- Durable materials for long-lasting use.
- Low noise operation.
- Environmentally friendly design.
- Easy to install.
Cons:
- May require some plumbing knowledge.
- Limited to specific heating systems.
- Flow rate might not suffice for larger homes.
- Installation can be tricky without prior experience.
- Could benefit from more detailed instructions.
Recommendation:
The TOPWAY Hot Water Circulation Pump is great for those who want a flexible and efficient solution for their water heating needs. Its affordability and sturdy design make it a solid choice for many households.
GRUNDFOS UP15-29SU/LC Stainless Steel Circulator Pump
Price: $331.00
The GRUNDFOS UP15-29SU/LC is a high-end circulator pump designed for those who require exceptional performance and reliability. With a stainless steel construction, it is resistant to corrosion and built to last. This pump provides efficient hot water circulation for various heating systems, making it suitable for both residential and commercial use.
Its 1/8 HP motor ensures strong performance, while the 1-1/4″ union makes installation straightforward. This circulator pump is designed to operate quietly, ensuring that it won’t disturb your daily activities. For those who need a dependable solution for hot water needs, the GRUNDFOS UP15-29SU/LC is a fantastic choice.
Pros:
- High-quality stainless steel construction.
- Reliable performance for various applications.
- Quiet operation.
- Easy installation with included union.
- Suitable for residential and commercial use.
Cons:
- Higher price point than many competitors.
- May require professional installation.
- Not ideal for small applications.
- Some users may find it complex to operate.
- Limited compatibility with specific systems.
Recommendation:
The GRUNDFOS circulator pump is perfect for those needing a high-performance solution for larger households or commercial settings. Its durability and efficiency make it a worthwhile investment for serious users.
FAQs Of Hot Water Recirculating Pump For Tankless
How do hot water recirculating pumps work?
Hot water recirculating pumps work by creating a loop in your hot water system. They keep hot water flowing through the pipes, ensuring that hot water is instantly available at every faucet. When the temperature drops below a certain point, the pump activates to push water back to the heater, maintaining a constant supply of hot water.
Are these pumps compatible with all water heater systems?
Not all hot water recirculating pumps are compatible with every water heater system. For example, some pumps are designed specifically for tank-style heaters, while others may work with tankless heaters. Always check the specifications before purchasing to ensure compatibility.
Do hot water recirculating pumps save water?
Yes, hot water recirculating pumps can save a significant amount of water. By providing instant hot water, these pumps reduce the time you spend waiting for hot water to reach your faucet, which can lead to substantial water savings over time.
Is installation difficult for these pumps?
Installation difficulty varies by model. Some pumps, like the Watts Heat H2O, are designed for easy DIY installation, while others may require professional help. Always refer to the installation manual and consider your plumbing skills before deciding.
Can I use a hot water recirculating pump with a tankless water heater?
Most hot water recirculating pumps are not compatible with tankless water heaters. However, some models are specifically designed for use with tankless systems. Be sure to check the product specifications to determine compatibility.
Final Verdict: Which Should You Buy?
In conclusion, selecting the right hot water recirculating pump for your tankless system depends on your specific needs and budget.
The Watts Heat H2O Hot Water Recirculation System stands out for its instant hot water delivery and water-saving features, making it ideal for larger households. If you're looking for a reliable, cost-effective option, the CrestWave Hot Water Recirculating Pump offers excellent value and flexibility.
For those on a tighter budget, the VIVOSUN 800GPH Submersible Pump and PULACO 400GPH Submersible Water Pump provide affordable solutions for smaller applications. Meanwhile, the Wassermann Instant Hot Water Recirculating Pump Kit is perfect for homeowners seeking convenience and efficiency. Lastly, the GRUNDFOS UP15-29SU/LC is a premium choice for those requiring high performance in commercial settings.
Choose the pump that best fits your needs, and enjoy the comfort of instant hot water!
