Instant hot water.

The best thing since indoor plumbing.

It’s . Waiting for hot water is a thing of the past. End the waiting and the waste — give your customers the convenience and savings of instant hot water with affordable, quality Grundfos hot water recirculation pumps.

The convenience that sells itself.

Easy to want. Easy to install. Easy to love.

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Increased homeowner comfort
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Decreased water waste
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Easy and affordable installation

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Based on 2018 average combined water and wastewater bill of $97.00 USD per month for 12,000 gallons per month. A typical family of four uses approximately 12,000 gallons of water per month.

No matter the home, Grundfos makes installation easy.

Newer homes may already have a dedicated return line installed. Older homes may not. Grundfos offers the right pumps for all types of plumbing to deliver immediate hot water.

Homes without a dedicated return line

Most older homes were built without a dedicated return line. For these, a retrofit solution uses the cold water line to give you the convenience you want without having to change your plumbing. The Grundfos Comfort System includes all the components needed — the pump, hose kit, bypass valve and digital timer. Installation can be completed in less than two hours.

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Homes with a dedicated return line

Grundfos plug-and-pump solutions for systems with dedicated return lines make installation and operation easy, circulating hot water throughout the house and varying the flow based on time, temperature or usage. The versatile, intuitive UP 10-16 and the ALPHA2 — both powered by highly efficient permanent magnet motors — set the industry standard for excellence in operation no matter the size of the home.

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The Grundfos hot water recirculation pump line

Precision-engineered Grundfos pumps give people ready-when-you-are hot water — instant like it oughta be — with state-of-the-art efficiency. See the full range of products.

Grundfos Comfort System

Grundfos Comfort System

The Grundfos Comfort System provides all the components needed to retrofit a hot water recirculation system in a home under 2,500 square feet without a dedicated return line. Additional valves and hose kits are available for larger homes. Installed in less than two hours, the system uses a bypass valve and pump with a 24-hour programmable timer to keep hot water available in the lines for immediate use.

  • Includes pump, hose kit, bypass valve and digital timer
  • Certified NSF/ANSI 61 and 372
  • Wet rotor design for whisper-quiet and maintenance-free operation
  • Stainless steel rotor cladding and canister construction

Available Accessories:
99521972 — Programmable Digital Timer Kit With Battery Backup
595926 — Comfort Valve
599390 — Flex Hose Kit

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UP 10-16 Temp BU LC

UP 10-16 Temp BU LC

The UP 10-16 sets the standard for efficient, reliable operation. The Temperature model adds the use of an internal sensor to keep water temperature within an optimal range.

  • Reduced energy consumption to 5–8.5 W
  • Permanent magnet motor; silent operation
  • One-touch operation
  • Compact design

Available Accessories:
99521972 — Programmable Digital Timer Kit With Battery Backup
5519852 — GU 125 Union Isolation Valve — Bronze, ¾″ NPT Union Isolation Valve Fitting Set

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The ALPHA2 takes reliability in small domestic circulators to new heights. With seven speed and pressure settings, including AUTOADAPT, the ALPHA2 ensures long-lasting, trouble-free operation in larger homes with higher flow needs, challenging operational environments or tankless water heaters. Its versatile design means it can be used as a replacement for more than 30 competitor pump models.

  • Stainless steel construction
  • Robust startup to prevent blockages
  • Easy-to-use LED display
  • Compatible with tankless water heater systems

Available Accessories:
99521972 — Programmable Digital Timer Kit With Battery Backup
96806130 - Bronze 3/4" NPT GF 15/26 Flange Dielectric Isolation Valve Set

Download product brochure »

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Resource Library

Residential Buildings Brochure
Grundfos offers a robust portfolio of solutions for heating, hot water recirculation, pressure boosting and other critical applications in and around the home.
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UP 10-16 Installation
See how the UP 10-16 range sets a new standard for energy-efficient hot water recirculation in residential homes.
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Sustainable Development Goals
Learn how Grundfos pump and water solutions have the biggest impact on SDG #6 for water sustainability.
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Water Mission
Since 2007, Grundfos has invested in this engineering nonprofit, which provides safe water in developing countries and disaster areas.
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