10 Best Hot Water Circulation Pump of 2025

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  Casing O-Ring: 008-005RP - Flange Gasket Set: 007-007RP
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  Capacitor or PC Board: 007-002RP - Cartridge Assembly Complete: 007-042RP
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  Standard High Capacity Output Compact Design - Quiet, Efficient Operation
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  Unique Replaceable Cartridge Design-Field Serviceable - Direct Drive-Low Power Consumption
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  This product runs using a 0.04 (1/25) horsepower motor

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  TLC = Timer, Line Cord, 6-Foot
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  Flow range: 0 - 9 U.S. GPM, Head range: 0 - 6-Foot
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  Motors: Single phase, 115V. Supply Voltage:115-120 VAC, 60 hertz, Contact Rating: 16 amps
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  Connection: 3/4-Inch M by 3/4-Inch FNPT.Maintenance-free, low energy consumption, easy to install, quiet running
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  The Grundfos circulator pumps, Series UP, are specifically designed for heating systems. The pumps are also suitable for circulation of hot domestic water and for circulation of liquid in cooling and air-conditioning systems

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  Pump Outlet: 3/4"In,Max Head: 6.0m,Max Flow: 30L/min,Liquid temperature range: 0 -+212
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  3-Speed Rated Power: 100/67/46W,Volt/Freq: 110-120v/60Hz.
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  No leakage, low noise, environmental protection, aesthetics, ease of installation.
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  Prevent pipes from freezing in winter, especially for cold winter areas.
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  Pumps Body: Cast Iron; Pump housing: Aluminium; Impeller: PP; Motor wire: Copper; Shaft: Ceramic; Bearing: China.

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  Committing to Instant Hot Water: CrestWave Hot Water Recirculating Pump provides a reliable and efficient solution for instant hot water throughout your home. Built with durability in mind, this pump features a heavy-duty stainless steel pump head, aluminum housing, and a PES impeller, ensuring exceptional resistance to stains, corrosion, and water damage. Additionally, brass fittings and a water-stop are included, adding years of enhanced performance and reliability to your plumbing system
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  Designed for robust functionality: CrestWave Hot Water Recirculating pump operates at a voltage of 110-120V (60Hz), with a powerful 125W motor. It boasts a maximum flow rate of 30 LPM and can handle a head height of up to 30 feet (9 meters). The pump's fluid temperature range from 0 to 212 ensures excellent performance in both extreme cold and high-heat conditionsall while maintaining a low noise level of just 25dB, so it runs quietly in the background
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  Designed for Flexibility: CrestWave Hot Water Recirculating pump features both manual and automatic operation modes. The auto mode conveniently turns the pump on or off depending on your needs, ensuring that you conserve energy when hot water isn't required. On the other hand, the manual mode allows for constant circulation, which can be particularly useful during colder months when you want to prevent your pipes from freezing
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  Installation is a breeze: Requiring just a wrench to connect the pump to your existing pipeline. The pump is also equipped with an extra NPT 1/2 adapter for added convenience. Its user-friendly design not only reduces installation costs but also ensures seamless integration into your current hot water system
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  Wide Range of Applications: This versatile pump is suitable for a wide range of applications, including city buildings, suburban homes, villas, and even industrial equipment. Whether you need to circulate water through an air conditioning system, boiler, or solar water heater, this pump ensures consistent water pressure and temperature, providing comfort and convenience in every setting

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  Adjustable Three Gears : Manual adjustment design-55/90/130 W three-speed control (Max.Flow Rate: 13 GPM). Head Range: 9.8/18/24 ft.Efficient and quiet operation, water comfort while keeping noise away from your family.
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  Simple Installation: The product is equipped with installation fittings, no need to purchase separately - standard 1" NPT flange, matching 2 gaskets and 4 nuts and 4 bolts. Simple operation, a wrench can connect the pump to the pipe, saving additional labor costs.
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  Economical and Energy Saving: Our circulation pump (Max Head : 24 ft) features high efficiency and low consumption.The powerful water pump provides stable and continuous pressurization of the tank pressure, so you can enjoy hot water in a few seconds, less cold water waste and less waiting time for hot water.Maintenance free - no mechanical seals and couplers to replace.
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  Durable Materials: Heavy-duty cast iron pump head and pump casing, PES impeller, ceramic bearing,which provide excellent defense against to rust, corrosion, abrasion and high temperatures- Maximum pressure :145psi (10bar)& Maximum temperature : 230°F; our pump motor is equipped with a full copper coil, ensuring powerful and consistent performance.
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  Wide Application: Circulation water pump suitable for residential, commercial hydronic radiant heating and plumbing, air conditioning, boilers, solar circulating water, snow melting, circulating heating, floor heating, forced air heating, domestic heating, radiant heating, hot water circulating warm and so on.

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  Durable Upgraded Stainless Steel Valve: Our recirculating pump comes with a sturdy stainless steel sensor valve designed for longer-lasting performance. No need for frequent replacements, and the valve works efficiently without requiring a return line or additional electrical connections
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  Winter-Proof Hot Water: Specifically designed for use with standard tank-style water heaters, this system helps prevent freezing in your hot water pipes during cold weather, ensuring reliable performance year-round
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  Food-Grade PEX Supply Lines: The 12-inch PEX supply lines (3/8" Comp x 1/2" FIP) are made from food-grade materials and feature a stainless steel surface, ensuring odor-free, safe, and durable connections for everyday household use
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  Instant Hot Water Convenience: Our advanced recirculating system allows hot water to reach any faucet or shower in just a few seconds, eliminating waiting time and enhancing the comfort of your home
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  Complete Kit for Easy Installation: This system includes everything you need for a quick, straightforward installation: the circulator pump, sensor valve, 12-inch PEX supply lines, adapters, gaskets, and Teflon tapeno extra trips to the hardware store required

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  NOTE: Tankless water heaters are not compatible
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  Instant Hot Water: Ensures hot water at every faucet within seconds, eliminating long waits and wasted water, using thermal bypass technology without requiring a return line or under-sink outlet
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  Easy Installation: Comes with all necessary components, including adapters, Teflon tape and upgraded 20-inch PEX supply lines, ensuring a straightforward setup without additional trips to the hardware store
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  Durable 304 Stainless Steel Bypass Valve: Upgraded from plastic to withstand high temperatures, it opens to push cool water back to the heater when the hot water line cools below 104°F, further reducing wait times; compatible with single-loop systems; additional sensor valve kits required for multiple loops (sold separately)
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  Potable Water Supply Lines: Includes two 20-inch supply lines with 3/8" Comp x 1/2" FIP, featuring a non-toxic, lead-free PEX inner tube and anti-burst 304 stainless steel braid, ensuring safe drinking water delivery without unpleasant odors or chemicals commonly found in cheaper EPDM hoses
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  Smart Timer Control: Programmable to automatically activate before morning showers or dishwashing, operates quietly and mounts directly onto standard indoor tank water heaters for residential use

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  INSTANT HOT WATER: The Watts Hot Water Recirculation System utilizes thermal bypass technology to instantly supply hot water in seconds at every faucet or shower when needed. The sensor valve opens when the water on the hot water side cools, pushes the cool water back to the water heater, and closes when hot water line hits 98°F. Not designed for tankless water heaters.
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  EASY DIY INSTALLATION: Operating on 120V, this quiet, efficient system easily installs into existing plumbing without the need for a return line or additional electricity under the sink, and once installed requires no maintenance. Includes everything you need for installation: heavy-duty stainless steel pump head in aluminum housing, 10 ft cord, 2 adapters with rubber washers, valve mounting screws, and two 12-inch supply lines.
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  WATER CONSERVATION: Your days of wasting time and water are over. With hot water available in 15 seconds, this convenient system can lead to significant water bill savings: up to 15,000 gallons per year.
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  CUSTOMIZABLE OPERATION: This pump includes a convenient built-in programmable timer that can be set to run for 24 hours a day or to activate only during peak use times. Its 24-hour dial features quarter-hour division tabs and AM/PM indications so you can easily set operation of the circulator according to your household's water usage patterns.
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  EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.

Main Highlights

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  Unique AUTOADAPT feature saving up to 48% heat energy and 96% motor energy compared with a standard pump in continuous operation
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  Automatic weekend and vacation detection
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  Automatic legionella eliminating operation (if supported from the system)
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  Quick and simple electrical installation due to the highly reliable ALPHA plug
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  Easy maintenance and cleaning through the easy-to-separate pump head fitting almost all competitor pump housings