Best on Demand Water Heater Recirculation Pump in 2025
Updated on August 2025
#1
Recommended
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- Control box, screws and wall anchors, insulation tape, manual, hardwired push button assembly, 55 series pump, flanges, bolts and nuts included in package.
- Under sink kit features stainless steel flex lines, a tee with plug, and a tee with threaded temperature sensor assembly.
- Provides instant hot water at any faucet, eliminating wait time for pipes to warm up.
- Compatible with any plumbing system, functioning with both dedicated return lines and standard plumbing; supports existing pumps up to 1/3HP.
- Reduces water and energy waste by recirculating hot water only when needed.
- Comprehensive package includes pump hardware, under-sink sensor valve kit, and all necessary fittings and accessories.
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- Control box, screws and wall anchors, insulation tape, manual, hardwired push button assembly, 55 series pump, flanges, bolts and nuts included in package.
- Under sink kit features stainless steel flex lines, a tee with plug, and a tee with threaded temperature sensor assembly.
- Provides instant hot water at any faucet, eliminating wait time for pipes to warm up.
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#2
Value for Money
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- Utilizes thermal bypass technology to provide hot water within seconds at any faucet or shower.
- Installs easily into existing plumbing without requiring a return line or additional electrical work, and requires no maintenance post-installation.
- Reduces water wastage with hot water available in 15 seconds, potentially saving up to 15,000 gallons annually.
- Features a programmable timer for customizable operation, allowing for daily use or activation during peak hours.
- Watts Water Technologies has over 140 years of experience in delivering innovative water solutions, focusing on quality and sustainability.
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- Utilizes thermal bypass technology to provide hot water within seconds at any faucet or shower.
- Installs easily into existing plumbing without requiring a return line or additional electrical work, and requires no maintenance post-installation.
- Reduces water wastage with hot water available in 15 seconds, potentially saving up to 15,000 gallons annually.
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#3
23% Off
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- NSF Certified for Safety: The pump meets NSF certification standards for safety and health, ensuring reliable performance and peace of mind.
- Three Operating Modes: Choose between Smart mode for instant hot water, Energy-saving mode for automatic temperature adjustment, or Manual mode for energy savings.
- Compatible with All Water Heaters: Works with both tankless and tanked water heaters, prolonging water heater life while conserving resources.
- High Efficiency: Advanced pump offers a flow rate of 6.1 GPM and delivers hot water quickly. Lead-free copper construction ensures safe drinking water.
- Quiet Operation: Features a brushless 24V DC motor for durability and reduced noise during operation.
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- NSF Certified for Safety: The pump meets NSF certification standards for safety and health, ensuring reliable performance and peace of mind.
- Three Operating Modes: Choose between Smart mode for instant hot water, Energy-saving mode for automatic temperature adjustment, or Manual mode for energy savings.
- Compatible with All Water Heaters: Works with both tankless and tanked water heaters, prolonging water heater life while conserving resources.
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#4
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- Compatible with tanked and tankless water heaters.
- Activates hot water in minutes by turning on the faucet for 2 seconds.
- NSF certified and made from lead-free copper, safe for drinking water.
- Three operating modes for energy efficiency: Smart, Energy-saving, and Manual.
- Built-in check valve with automatic temperature control.
- Supports multiple remote controls for convenient operation.
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- Compatible with tanked and tankless water heaters.
- Activates hot water in minutes by turning on the faucet for 2 seconds.
- NSF certified and made from lead-free copper, safe for drinking water.
- Three operating modes for energy efficiency: Smart, Energy-saving, and Manual.
- Built-in check valve with automatic temperature control.
- Supports multiple remote controls for convenient operation.
#5
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- Recirculating pump designed for water heater tanks to provide instant hot water throughout the home, minimizing wait times and water waste.
- Includes a stainless recirculating pump, 10 ft power cord, bronze bypass valve, braided water supply line, and tee for installation.
- Installation can be completed in 30 minutes; suitable for standard single-pipe plumbing systems up to 250 feet; requires an electrical outlet.
- Meets California Title 24 on-call requirements for efficiency.
- Can reduce water bills by up to 10% and save approximately 12,000 gallons of water annually.
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- Recirculating pump designed for water heater tanks to provide instant hot water throughout the home, minimizing wait times and water waste.
- Includes a stainless recirculating pump, 10 ft power cord, bronze bypass valve, braided water supply line, and tee for installation.
- Installation can be completed in 30 minutes; suitable for standard single-pipe plumbing systems up to 250 feet; requires an electrical outlet.
- Meets California Title 24 on-call requirements for efficiency.
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#6
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- Smart-Circ technology enhances energy efficiency by learning your water usage patterns and adjusting recirculation schedules accordingly.
- Compact design allows this tankless gas water heater to fit in smaller spaces while supplying hot water up to 6.1 GPM, sufficient for multiple fixtures simultaneously.
- Constructed for durability with varying warranty periods for the heat exchanger, labor, and parts. WiFi control is available with a separate Controlr module.
- Professional installation is recommended for optimal performance; locate a certified technician through the Rinnai website.
- Access product guides, manuals, and installation resources on our website to ensure the right fit for your home.
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- Smart-Circ technology enhances energy efficiency by learning your water usage patterns and adjusting recirculation schedules accordingly.
- Compact design allows this tankless gas water heater to fit in smaller spaces while supplying hot water up to 6.1 GPM, sufficient for multiple fixtures simultaneously.
- Constructed for durability with varying warranty periods for the heat exchanger, labor, and parts. WiFi control is available with a separate Controlr module.
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#7
- Provides instant hot water to any faucet, eliminating wait times.
- Highly energy-efficient, reducing water waste and lowering costs.
- Equipped with a programmable timer for automated operation, optimizing energy usage.
- Includes a stainless steel pump, braided hose, and necessary fittings for easy DIY installation.
- Designed for homes without a dedicated return line and compatible with indoor tankless water heaters.
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- Provides instant hot water to any faucet, eliminating wait times.
- Highly energy-efficient, reducing water waste and lowering costs.
- Equipped with a programmable timer for automated operation, optimizing energy usage.
- Includes a stainless steel pump, braided hose, and necessary fittings for easy DIY installation.
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#8
6% Off
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- Instant access to hot water at faucets and showers with the Crispaire Digital Smart Instant Hot Water Recirculating Pump Kit, eliminating waiting time.
- User-friendly touch screen control panel allows for easy customization of settings for a personalized experience.
- Compact under-sink installation conserves space and integrates seamlessly into existing setups, maintaining a clean look.
- Features a durable 20-inch PEX supply line that is safe for potable water and resistant to corrosion and scale buildup.
- Comes with a comprehensive installation kit, providing all necessary components for an easy and accessible DIY setup.
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- Instant access to hot water at faucets and showers with the Crispaire Digital Smart Instant Hot Water Recirculating Pump Kit, eliminating waiting time.
- User-friendly touch screen control panel allows for easy customization of settings for a personalized experience.
- Compact under-sink installation conserves space and integrates seamlessly into existing setups, maintaining a clean look.
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#9
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- AQUAMOTION HOT WATER RECIRCULATION PUMP: With this hot water recirculation pump, you'll always have instant access to hot water whenever you need it; fully automatic system installs under the sink and is not for use with tankless water heaters
- REDUCE WATER WASTE AND SAVE MONEY: The recirculation pump circulates hot water through your pipes, meaning less water is wasted and more energy is saved; with less water wasted and energy saved, you'll be able to save money on your energy bills
- DURABLE: This recirculating pump is made with high-quality, durable materials and designed to last; with a high-efficiency motor and a built-in timer, you can relax knowing that your energy and money are being saved
- EASY TO USE: This under-sink hot water recirculation pump is easy to install and maintain with a simple setup; provides a quiet performance without any annoying vibrations
- SPECS: This pump requires an electrical outlet at the sink and fluid temperature ranges from 40 degrees F to 176 degrees F
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- AQUAMOTION HOT WATER RECIRCULATION PUMP: With this hot water recirculation pump, you'll always have instant access to hot water whenever you need it; fully automatic system installs under the sink and is not for use with tankless water heaters
- REDUCE WATER WASTE AND SAVE MONEY: The recirculation pump circulates hot water through your pipes, meaning less water is wasted and more energy is saved; with less water wasted and energy saved, you'll be able to save money on your energy bills
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#10
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- Transforms tankless water heaters with integrated recirculation pumps into energy-efficient systems.
- Delivers hot water only when needed, significantly reducing energy consumption of the recirculation pump and heater.
- Compatible with most tankless water heaters with integrated pumps, including Rinnai, Navien, Rheem, Noritz, and AO Smith.
- Pairs with AutoHot Wireless Accessories, like Push Buttons and Motion Sensors, with a wireless range up to 1000 feet in open air.
- Complies with CA Title 24 and IECC energy code requirements for energy-efficient recirculation systems.
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- Transforms tankless water heaters with integrated recirculation pumps into energy-efficient systems.
- Delivers hot water only when needed, significantly reducing energy consumption of the recirculation pump and heater.
- Compatible with most tankless water heaters with integrated pumps, including Rinnai, Navien, Rheem, Noritz, and AO Smith.
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