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Grundfos UP15-10SU7P/TLC Comfort System

UP15-10SU7P/TLC Comfort System w/ Comfort Valve & Connectors, 3/4" NPT


Brand: Grundfos

Mfr Part#: 595916

Model: UP15-10SU7P/TLC

UPC#: 700394894807

Availability: In Stock
Usually ships: Today, if ordered by 3pm
Qty Price
$232.95 / each & Free Shipping
  • Description
  • Literature
  • Reviews (7)
  • FAQs (4)

Grundfos UP15-10SU7P/TLC (595916) Comfort System is an all-in-one, easy to install solution for domestic hot water recirculation needs. This system is well suited for existing construction and can be easily intergrated without the need for running a separate return line.

Grundfos UP15-10SU7P/TLC Comfort System also includes a Timer, Line Cord, Comfort Valve (SKU# 595926) and Flexible Connectors, thus eliminating the need for purchase and installation of addidtional components. Simply connect the lines, plug the pump into the electrical outlet and let the system do the rest.

This Grundfos Circulator Pump is for open systems with Maximum liquid temperature 150 F.


How it works:

The stainless steel circulator pump is installed directly onto the hot water discharge on the water heater. The comfort valve is installed at the fixture furthest from the water heater. The system uses the cold water line to return hot water to the water heater, thus saving on utility bills.


Grundfos UP15-10SU7P/TLC Features:

  • Built-in timer & line cord
  • Built-in motor protection for longer life
  • Designed to not require additional components for installation
  • Stainless steel body
  • Engineered to meet the needs of residential hot water and heating systems
  • UL/CSA listed



  • Most commonly used in domestic hot water recirculation.
  • Can also be used for various open and closed loop hydronic and radiant heating applications.


Technical Specifications of Grundfos UP15-10SU7P/TLC:

  • Voltage: 115V;
  • Amperage: 0.23 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts: 25W;
  • Max Pressure: 145 psi;
  • Max Temperature: 150F;
  • Min Temperature: 36F;
  • Flow Range: 0-6.3 GPM;
  • Head Range: 0-5.1 ft;
  • Horse Power: 1/25HP;
  • Body: Stainless Steel;
  • Connections: 3/4" Female NPT Inlet, 3/4" Male NPT Outlet;


Manufacturer's warranty:

2 years from the date of installation

UP15-10SU7P/TLC Comfort System w/ Comfort Valve & Connectors, 3/4" NPT has an average 5.0 out of 5 rating based on 7 user reviews.
2 of 2 people found this review helpful.
It works as advertised
By Al (from Chisago City, MN) on 5/9/2011
I live in a towmhome and all the water pipes are underground and it takes the hot water a long time to reach the tap. I now have hot water at the tap in a few seconds rather then minutes. It saves water and more importantly hot water.
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1 of 1 people found this review helpful.
It is a "No Brainer"
By Dennis Heck (from Redondo Beach, CA) on 8/24/2016
Our water heater is in the garage at one end of the house and our shower is upstairs and at the other end of the house. So we needed to run our shower for 3 minutes or so to get hot water. And since we were tired of dragging the 3 gal bucket of water back down stairs to water our plants, I decided to try this product.It was very easy to install and works great. The timer is a real plus. Since we both get up at 5am, we set the timer to go on at 4:30am and go off at 8am, and by the time we are ready for our showers, we have hot water in our shower. No more lugging buckets of water. We highly recommend this product, since our scarce water supply in Southern California will not end soon, but our water bills will increase. This Comfort System is really making a difference. And the quality of the product exceeded our expectations. We don't see any disadvantages to this product.
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1 of 1 people found this review helpful.
Nice Product!
By One Pleased Guy (from Bakersfield, CA) on 1/5/2016
This unit was rather easy to install and it works great! Because of the house layout, I installed three comfort valves, one at each bathroom. It is so nice to get up in the morning and have instant hot water at the tap. Before I installed the unit, we would have to dump several gallons of water down the drain before the hot water from the water heater arrived. I'm looking forward to a reduction in our expensive Cal Water bill!
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1 of 1 people found this review helpful.
Great Product
By Verified Buyer (from Maryville TN) on 9/2/2015
It will not provide hot water like a three pipe system, but having warm water immediately is so much better than having a long cold wait. I would highly recommend the product.
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1 of 1 people found this review helpful.
Terrific product that saves $$$
By Verified Buyer (from Bay Area, CA) on 7/14/2015
If you need a hot water re circulation line and absolutely do not want to open up walls, then this will do the trick.Note:Only works with regular water heaters.The maximum number of sensor valves on a system is 3.
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1 of 1 people found this review helpful.
Works fine
By William P. (from Cimarron, CO) on 10/18/2012
Bought this pump since an earlier one lasted over 8 years (warrantied for 2 years). More than satisfied with the quality and performance.
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1 of 1 people found this review helpful.
Great product
By Jeff (from Delray Beach, FL) on 6/7/2012
I own a house in Florida where the master bath is all the way on the opposite side of the house and the plumbing is in the slab. Adding a return line is not an option and we had to run the water for 5 minutes to get warm water. This package was easy to install and worked like a champ.
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Will this product prevent my pipes from freezing when outside temperatures occasionally reach -30F? No heat is available in the house while unoccupied for up to 30 days.
Read 1 answer
This pump is not intended for freeze protection purposes. While it may prevent freezing by re-circulating the water at pre-programmed intervals, there's no guarantee that water will not freeze in between these intervals. A better option might be to drain the water lines.
Answered on 9/15/2015 by PexUniverse Customer Service
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Can I install this pump if I have a close look, recirculation line?Thank you very much
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2 of 3 people found this answer helpful.
This pump does not require a return loop and is not designed for a system with return hot water line. If you already have a return line, you can use any circulator pump from Grundfos Comfort System Line except this one.
Answered on 6/3/2013 by PexUniverse Customer Service
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Like the price for combo. But I do not need or want the timer. Do you have a package without the timer.
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1 of 1 people found this answer helpful.
This is the only re-circulating pump that does not require return line and Grundfos makes no other variations of it.
Answered on 12/14/2012 by PexUniverse Customer Service
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Why would I pay for a stainless steel pump housing when I can get a cast iron housing cheaper? I intend to use the pump for hot water recirc with cold water line as return.Thanks!
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2 of 2 people found this answer helpful.
Cast iron circulator pumps are designed for use in closed-loop heating systems only, where there's no oxygen (air molecules) in the water. Oxygen-rich water quickly corrodes the circulator shortening it's lifespan and reducing system efficiency. Both stainless steel and bronze circulators are equally suitable for use with oxygen-rich water.
Answered on 12/5/2012 by PexUniverse Customer Service
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