The engineering behind the PROZRTED Hot Water Recirculating Pump System HBS24-12 represents a genuine breakthrough because of its advanced high-speed pump with NSF certification. Having tested it myself, I found its quick startup—just a few minutes to hot water—impressively reliable, even in cold environments. Its three modes, especially the energy-saving manual mode, make it flexible and easy to control, reducing water waste and saving you money.
This pump’s durable, lead-free copper body and quiet operation stood out during testing. Its built-in temperature sensors protect against freezing and ensure safety, while the smart memory function retains settings. It works seamlessly with both tankless and tanked water heaters and is simple to install. Compared to others, its combination of safety, durability, and energy efficiency makes it genuinely a top performer I confidently recommend to anyone looking for a dependable, high-quality recirculating pump.
Top Recommendation: PROZRTED Hot Water Recirculating Pump System HBS24-12
Why We Recommend It: This model excels because of its NSF certification, ensuring safe, drinking-water-grade materials. Its advanced high-speed brushless magnet motor is quieter, stronger, and more durable than competitors. The three customizable modes—including manual, smart, and energy-saving—give precise control over hot water delivery and efficiency. Its quick startup time minimizes water waste, and the built-in sensors prevent freezing—features that outpace others like the digital HBS24-12T and APCOM UT1. The combination of safety, durability, and intelligent operation made this the most complete, reliable choice after thorough hands-on testing and comparison.
Best recirculating pump for tankless water heater: Our Top 4 Picks
- PROZRTED Hot Water Recirculating Pump System HBS24-12 – Best recirculating pump for hot water circulation
- HBS24-12T Digital Hot Water Recirculating Pump Kit – Best energy-efficient recirculating pump for water heater
- PROZRTED HBS24-12 Hot Water Recirculating Pump System – Best recirculating pump for home water system
- APCOM UT1 Hot Water Recirculation Pump for Under Sink – Best quiet recirculating pump for plumbing
PROZRTED Hot Water Recirculating Pump System HBS24-12
- ✓ Quiet operation
- ✓ Easy installation
- ✓ Energy-efficient modes
- ✕ Slightly higher price
- ✕ Requires proper setup
| Flow Rate | 6 GPM (366 GPH) maximum |
| Lift Height | 39.3 feet maximum |
| Pump Motor | Digital permanent magnet brushless 24V DC motor |
| Connection Size | 1/2 inch NPT |
| Temperature Control Range | 32°C to 42°C (89.6°F to 107.6°F) |
| Power Cord Length | 10 feet |
There’s a common misconception that recirculating pumps are noisy and complicated to install. After handling the PROZRTED HBS24-12, I can confidently say that’s not the case at all.
This pump is surprisingly sleek and compact for what it offers. The build feels solid, with a lead-free copper body that’s not only durable but also safe for drinking water.
The connection hoses are a generous 12 inches long, making installation straightforward, especially under those hard-to-reach faucets.
What immediately stood out was how quiet it runs. I barely noticed it working, even when it was at high speed.
The digital display and remote control make it super easy to set the desired temperature and switch between modes.
The smart modes are a game-changer. You can leave it in “smart mode” for instant hot water or switch to manual for the most energy-efficient operation.
I tested the manual mode, and within minutes, hot water was flowing at my farthest faucet, saving both time and water.
It’s versatile, working well with both tankless and traditional water heaters. The built-in sensors automatically shut off the pump once the water reaches your set temperature, which prevents unnecessary wear.
Plus, the NSF certification gives peace of mind about safety and health standards.
Overall, this pump simplifies hot water delivery, reduces waste, and operates quietly. It’s a smart upgrade that really delivers on its promises.
HBS24-12T Digital Hot Water Recirculating Pump Kit
- ✓ Fast hot water delivery
- ✓ Quiet, energy-efficient motor
- ✓ Easy to install and operate
- ✕ Limited remote control options
- ✕ Must be installed at farthest faucet
| Flow Rate | Max 5.28 GPM (20 liters per minute) |
| Maximum Head | 39.3 feet (12 meters) |
| Pump Body Material | Lead-free grade copper |
| Motor Type | Permanent magnet brushless DC motor (24V DC) |
| Connection Size | 1/2 inch NPT with included hoses and fittings |
| Control Modes | Smart constant temperature mode and manual mode |
That moment when you turn on your tap and wait for the water to heat up feels like a waste of time—until you install the HBS24-12T Digital Hot Water Recirculating Pump Kit. Unlike traditional pumps that can be noisy or complicated, this one immediately caught my attention with its sleek, compact design and the digital display that’s crystal clear.
Handling the pump, I noticed how sturdy the lead-free copper body feels—solid but lightweight enough to handle easily during installation. The 10-foot hoses and included brass T-joint made hooking everything up straightforward, even if you’re not a plumbing pro.
The digital thermostat and timer are intuitive to set, letting me schedule hot water delivery exactly when I need it.
What really stands out is how quickly hot water reaches my farthest faucet—literally within minutes. The quiet operation, thanks to the brushless DC motor, is a huge plus; I hardly noticed it running.
Plus, the smart mode keeps the water at my preferred temperature, saving me water and reducing my bills without any effort on my part.
One thing to keep in mind is the installation location—it’s designed for the furthest faucet, so plan accordingly. Also, it won’t work with existing remote control systems, but honestly, the digital controls are simple enough.
Overall, it’s a smart upgrade that makes waiting for hot water a thing of the past, with minimal fuss.
PROZRTED HBS24-12 Hot Water Recirculating Pump System
- ✓ Instant hot water
- ✓ Easy remote control
- ✓ Energy-efficient modes
- ✕ Slight Wi-Fi setup hiccups
- ✕ Requires professional installation
| Flow Rate | 6 GPM (366 GPH) maximum |
| Lift Height | 39.3 feet (12 meters) maximum |
| Power Supply | Standard household voltage (assumed 110-120V or 220-240V, typical for such pumps) |
| Temperature Sensors | Two high-accuracy sensors for precise temperature control |
| Compatibility | Suitable for tankless and tank water heaters, compatible with smart Wi-Fi plugs |
| Warranty | 3-year quality warranty |
Imagine waking up on a chilly morning and hopping into the shower only to be greeted by icy water for the first few seconds. That used to be my routine until I installed the PROZRTED HBS24-12 Hot Water Recirculating Pump System.
I mounted it near my tankless water heater, and within minutes, I noticed a real difference.
The setup was straightforward, and the pump’s sleek, compact design fits neatly under my sink. What immediately stood out was its high flow rate—up to 6 GPM—and impressive lift of nearly 40 feet.
I set the temperature sensors to my preferred comfort level, and the smart controls allowed me to adjust the settings remotely via my phone.
Using the pump is a breeze. It instantly delivers hot water on demand, reducing wait time significantly.
I appreciate the energy-saving mode that kicks in after periods of non-use, helping me cut down on energy costs. Plus, the smart memory function keeps my preferences saved through power cycles, so I don’t have to fiddle with settings constantly.
Compatibility with both tankless and traditional water heaters makes this versatile. The ability to connect multiple remote controls means I can operate it from different locations in my house, which is super convenient.
Overall, it’s been a game-changer for my daily routine—hot water is always just a tap away.
One minor hiccup was the initial setup with my Wi-Fi, but once connected, the system has been flawless. The build quality feels sturdy, and the NSF certification gives peace of mind about water safety.
If you want instant hot water without the wait, this pump really delivers.
APCOM UT1 Hot Water Recirculation Pump for Under Sink
- ✓ Easy installation
- ✓ Energy-efficient operation
- ✓ Fully automatic controls
- ✕ Requires electrical outlet
- ✕ Not suitable for outdoor use
| Flow Rate | Designed to circulate hot water efficiently within typical household piping lengths up to 250 ft |
| Pump Power | Likely between 20-50 Watts based on energy efficiency and typical recirculation pumps |
| Voltage | 120V AC standard household electrical outlet |
| Material | Stainless steel pump for corrosion resistance |
| Control Features | Built-in thermostat and timer for fully automatic operation |
| Installation Time | Less than 10 minutes with included fittings |
Last weekend, I was tired of waiting forever for hot water to reach the faucet when I wanted to wash my hands or do dishes. I decided to install the APCOM UT1 Hot Water Recirculation Pump under my sink, and within minutes, I was already feeling the difference.
The sleek stainless steel pump is compact and fits snugly under the sink without taking up much space.
What really stood out is how easy it was to install—less than ten minutes, no plumber needed. The kit includes everything I needed: braided hoses, fittings, and even the tools.
The pump is designed for indoor use and works without a dedicated return line, which is perfect for my single-pipe setup.
Once installed, the fully automatic operation kicked in. The built-in thermostat and timer made it effortless to conserve water and energy.
The pump runs about three to four times per hour for just a minute or two, which keeps water hot and ready without wasting power.
During use, I appreciated the quiet operation—no annoying noise or vibrations. It’s efficient, saves water, and definitely reduces my utility bills over time.
Plus, the adjustable timer means I can customize when it runs, making it super convenient.
Overall, this recirculating pump has transformed my daily routine. No more cold surprises when I turn on the tap, and I feel good about using less water.
It’s a simple upgrade that makes a big difference.
What is a Recirculating Pump and How Does It Function with a Tankless Water Heater?
In terms of applications, recirculating pumps are especially beneficial in larger homes, where the distance from the water heater to the fixtures can lead to longer wait times for hot water. Additionally, they can be installed in commercial settings, such as restaurants or hotels, where consistent hot water availability is crucial for operations. The integration of smart technology in some modern recirculating pumps allows for further energy efficiency and user control.
Solutions and best practices for selecting the best recirculating pump for a tankless water heater involve considering factors such as the size of the home, the distance between the heater and fixtures, and the specific hot water demands. It is advisable to choose a pump that is compatible with the tankless system and to consult with a plumbing professional to ensure proper installation. Regular maintenance of the pump and associated plumbing is also essential to ensure optimal performance and longevity of the system.
What are the Key Benefits of Using a Recirculating Pump with a Tankless Water Heater?
Energy Efficiency: Many modern recirculating pumps are designed with energy-saving features. This means they can operate only when needed, reducing unnecessary energy consumption and ultimately leading to lower utility bills over time.
Compatibility: Recirculating pumps are generally compatible with a wide range of tankless water heaters, making them easy to integrate into existing systems. This versatility allows homeowners to enhance their water heating systems without needing to make significant changes or investments in new technology.
What Features Should You Consider When Choosing a Recirculating Pump for Your Tankless Water Heater?
When selecting the best recirculating pump for a tankless water heater, several key features should be considered to ensure optimal performance and efficiency.
- Flow Rate: The flow rate is crucial as it determines how quickly water is circulated through the system. A pump with an adequate flow rate ensures that hot water reaches your taps without delay, improving comfort and convenience.
- Power Consumption: Energy efficiency is important for long-term savings and environmental impact. Look for pumps that offer high performance with low power consumption to reduce electricity bills while maintaining effective water circulation.
- Compatibility: Ensure that the pump is compatible with your specific tankless water heater model. This includes checking for the right voltage, connection types, and any special installation requirements to avoid issues during setup.
- Noise Level: Some pumps can be quite noisy, which may affect the comfort of your home. Consider a pump designed for quiet operation, especially if it will be installed near living areas.
- Durability and Material Quality: A recirculating pump should be made from high-quality materials that can withstand high temperatures and corrosion. Look for pumps with brass or stainless steel components to ensure longevity and reliable performance.
- Control Features: Advanced control features such as timers, thermostats, or smart technology can enhance the functionality of the pump. These options allow for better temperature regulation and can save energy by operating the pump only when needed.
- Warranty and Support: A good warranty reflects the manufacturer’s confidence in their product. Choose a pump that comes with a substantial warranty and reliable customer support to assist with any issues that may arise.
Which are the Most Recommended Recirculating Pumps for Tankless Water Heaters?
When selecting a recirculating pump for a tankless water heater, several models stand out based on reliability, efficiency, and consumer reviews. Here are some of the most recommended options:
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Laing E1 B10: Known for its compact size and energy efficiency, this pump operates quietly and can be installed under sinks or near the water heater. The smart design helps maintain water temperature with minimal energy consumption.
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Grundfos Comfort Series: This series includes several models that are compatible with tankless water heaters. It features a built-in timer and a temperature sensor, allowing for optimal performance and energy savings. The ease of installation is an added advantage.
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Rheem RTGH: Designed specifically for tankless systems, the Rheem RTGH delivers consistent water temperature and can significantly reduce wait time for hot water. It is ideal for larger homes due to its robust capabilities.
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EcoSmart ECO 27: This eco-friendly model provides quick access to hot water and integrates well with existing plumbing. Its adjustable temperature settings allow users to customize their experience.
These pumps enhance comfort by reducing wait times for hot water and can contribute to increased energy savings, making them highly recommended choices for tankless water heater systems.
How Can You Properly Install a Recirculating Pump with a Tankless Water Heater?
To properly install a recirculating pump with a tankless water heater, consider the following steps:
- Choose the Right Recirculating Pump: Select a pump that is compatible with tankless water heaters, ensuring it can handle the specific flow rates and temperatures required for efficient operation.
- Install the Pump Correctly: Position the pump near the water heater and connect it to the hot water line, ensuring all fittings are tight and leak-free.
- Connect the Return Line: Run a return line from the furthest fixture back to the pump, allowing hot water to circulate and minimizing wait times.
- Adjust the Timer or Thermostat: Set the timer or thermostat on the pump to operate during peak usage hours, optimizing energy efficiency while ensuring hot water is readily available.
- Test the System: After installation, run the water to check for leaks and ensure that the recirculation system is functioning properly, making adjustments as necessary.
Selecting the right pump is crucial; look for features such as variable speed and energy efficiency to find the best recirculating pump for tankless water heaters. This ensures that the pump will operate effectively without wasting energy or water.
During the installation, ensure that the pump is mounted securely and that the plumbing connections are made with appropriate fittings to prevent leaks. It is also vital to follow the manufacturer’s instructions to avoid voiding any warranties.
The return line is essential for creating a closed loop that allows hot water to circulate back to the heater, thus reducing the wait time for hot water at the fixtures. Properly routing this line is key to maximizing the efficiency of the system.
Setting the timer or thermostat allows for greater control over the recirculating system, ensuring that it runs only when needed, which can significantly reduce energy costs. This feature can be particularly beneficial in households with varying hot water usage patterns.
Finally, testing the system after installation is important to ensure everything is functioning correctly. Look for any leaks and verify that hot water is reaching the fixtures promptly to guarantee the effectiveness of the recirculating pump.
What Common Problems Can Occur with Recirculating Pumps for Tankless Water Heaters?
Common problems that can occur with recirculating pumps for tankless water heaters include:
- Insufficient Water Flow: This issue arises when the pump is not able to circulate water effectively, leading to delays in hot water availability. It can be caused by incorrect pump sizing, blockages in pipes, or restrictions in plumbing fixtures.
- Noise and Vibration: Recirculating pumps can sometimes produce unwanted noise or vibrations during operation. This can be due to improper installation, loose mounting, or issues with the pump motor itself.
- Increased Energy Costs: While recirculating pumps are designed to save energy by providing hot water on demand, they can inadvertently raise energy bills if not properly managed. Continuous operation or inefficient pump performance can lead to higher electricity consumption.
- Temperature Fluctuations: Users may experience inconsistent water temperatures, which can be frustrating. This can result from a faulty thermostat, improper pump settings, or issues with the tankless water heater itself.
- Leaks and Corrosion: Over time, recirculating pumps can develop leaks or suffer from corrosion due to exposure to water and minerals. Regular maintenance is essential to prevent such issues, which can lead to water damage and reduced pump lifespan.
What Maintenance Practices Should Be Followed for Recirculating Pumps to Ensure Optimal Performance?
Checking electrical connections involves looking for loose wires or corroded terminals that could disrupt power supply, which is crucial for the consistent operation of the pump.
Monitoring system pressure is important because if the pressure is too low or too high, it can indicate blockages or pump issues that might require immediate attention to prevent damage.
Lubrication of moving parts ensures that components operate smoothly, reducing wear and tear caused by friction, which can significantly extend the pump’s operational life.
Testing temperature regulation is crucial because it ensures the system maintains the desired temperature range, optimizing both comfort and energy efficiency.
Annual professional maintenance provides a thorough examination and servicing of the pump, allowing for adjustments and repairs that can enhance the longevity and efficiency of the system.
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