Comfort Valve Zoom

Comfort Valve

SKU:595926

Brand: Grundfos

Grundfos
Qty Price
$46.95
/ each
$182.20 / box (4 units x $45.55)
In Stock! Ships in 24-48 Hours
(46 Available)

Specs

Application: Replacement Part

Description for Grundfos 595926

Replacement Comfort Valve for Grundfos UP15-10SU7P/TLC Comfort Series 1/25 HP Recirculator. The Comfort Valve is installed under the sink at the fixture furthest from the water heater.

Comfort Valve

REVIEW SNAPSHOT®

by PowerReviews
GrundfosComfort Valve
 
4.6

(based on 16 reviews)

Ratings Distribution

  • 5 Stars

     

    (12)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

88%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Saves time, water

Having read a number of online gripes about the Grundfos (sold also under the name Watts)recirculator, I was skeptical about this product. However, I am pleased to say that in my house...Read complete review

Having read a number of online gripes about the Grundfos (sold also under the name Watts)recirculator, I was skeptical about this product. However, I am pleased to say that in my house it just works. For years I watched untold thousands of gallons of water and who knows how much money go literally down the drain, waiting for hot water to reach the sink.

The genius of the recirculator is that when the fauctet is off, the recirculator keeps a small amount of hot water circulating from the hot into the cold line. When the hot water faucet is turned on, you get an immediate flow of water warm enough for washing, followed quickly by full-out hot water.

If your house has hot water fixtures running off different main lines or "trees," you will need a valve on the furthest fixture of each tree. Extra valves come as kits with the faucet coupling hoses. However, you can save quite a bit by buying just the valve as I did, and supply your own hoses. If you do this, be aware that only flexible faucet connector hoses with a one-half inch garden hose-type female connector containing a (normal) internal sealing washer will securely connect to the valve. If your faucet has a 3/8 inch female fitting, you will need a brass male-male adaptor(also available in the plumbing department) to make the connection between the 3/8" female faucet end of the connector hoses and the female connectors of the faucet. Discard the compression ring and fitting that come with the adaptors; you will not need them. Do not try to connect a brass 1/2 to 3/8 inch male-male adaptor to the valve; it will not thread properly and you will break the valve, especially, according to the company, if you try to use teflon pipe sealing tape. If you use the garden hose type connections I have described, everything will fit nicely witout any leaks.

Another tip: Set the temperature of your hot water heater to 120 degrees. Hotter water will eventually damage the valve, which is probably the reason some people have complained that the valves don't last very long. I have not had any durability problems with my valves.

VS

Most Liked Negative Review

 

Not a long term solution

These valves are good until they build up scale and then they are useless and no known way to repair or maintain. The timing is dependent of course on the water composition. So I...Read complete review

These valves are good until they build up scale and then they are useless and no known way to repair or maintain. The timing is dependent of course on the water composition. So I have to change out valves every 2 years or so, it gets a little expensive.

Reviewed by 16 customers

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Displaying reviews 1-10

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5.0

I would buy this product again.

By Bernie

from Sequim, WA

Verified Buyer

Comments about Comfort Valve:

This sensor switch was a comfort life saver. The existing one in our recirculating system stopped working this December and it was bad to not have instant warm water, Would hope this one might last longer than the previous one.

 
2.0

Not a long term solution

By gnx373

from Birmingham, AL

Verified Buyer

Comments about Comfort Valve:

These valves are good until they build up scale and then they are useless and no known way to repair or maintain. The timing is dependent of course on the water composition. So I have to change out valves every 2 years or so, it gets a little expensive.

(1 of 1 customers found this review helpful)

 
4.0

The valve does the job of recirculating

By Bob

from Indio, CA

Verified Buyer

Comments about Comfort Valve:

The valve does the job of recirculating hot water without the need for additional plumbing. The quick shiping was a big help.

 
3.0

Hot Water

By quarterd

from illinois

Verified Buyer

Comments about Comfort Valve:

It would be a good product if it would last longer than 6 months.

(1 of 1 customers found this review helpful)

 
5.0

WORKS GREAT!

By THRILL SEEKER

from CANTON, GA

Verified Buyer

Comments about Comfort Valve:

THIS PRODUCT ELIMINATES THE ISSUE WITH WAITING FOR HOT WATER TO RUN WHEN THE SINK HAS NOT BEEN USED IN A WHILE. MAKE SURE THAT YOU DON'T EXCEED THE 150 DEGREES MAX TEMP SETTING ON YOUR WATER HEATER. MOST WATER HEATERS ARE ABOUT 150 DEGREES ON THE NORMAL SETTING. I NORMALLY USE THE WARM OR (133 DEGREE) SETTING WHEN THE DEMAND IS LOW OR 2-3 SHOWERS ARE NEEDED IN THE MORNING ON MY 50 GAL WATER HEATER. I HAVE A 3.5 BATH HOUSE AND ONLY USED ONE VALVE FOR THE TWO BATHROOMS UPSTAIRS, ONE VALVE IN THE KITCHEN AND ONE VALVE FOR THE TWO SINKS IN THE MASTER BATH. BECAUSE I AM RETIRED (EMPTY NESTER), MY WATER COMFORT PUMP IS SET TO RUN DURING THE DAY ONLY AND GO OFF AT NIGHT WHEN WE SLEEP. I AM VERY HAPPY WITH THE SYSTEM. I RECOMEND THAT THE VALVES BE INSTALLED USING FOUR FLEX HOSES ATTACHED SO THAT A VALVE CAN EASILY BE REPLACED OR BYPASSED IF NEEDED. THE VALVE HAS FAILED WHEN EXCESSIVE HOT WATER STARTS COMING OUT ON THE COLD WATER SIDE OR SOMETIMES THE COLD WATER SIDE STOPS FLOWING ALL TOGETHER. REPLACE THE VALVE WHEN THAT HAPPENS RATHER THAN CALLING A PLUMBER.

(1 of 1 customers found this review helpful)

 
5.0

Saves time, water

By Larry

from Louisville, KY

Verified Buyer

Comments about Comfort Valve:

Having read a number of online gripes about the Grundfos (sold also under the name Watts)recirculator, I was skeptical about this product. However, I am pleased to say that in my house it just works. For years I watched untold thousands of gallons of water and who knows how much money go literally down the drain, waiting for hot water to reach the sink.

The genius of the recirculator is that when the fauctet is off, the recirculator keeps a small amount of hot water circulating from the hot into the cold line. When the hot water faucet is turned on, you get an immediate flow of water warm enough for washing, followed quickly by full-out hot water.

If your house has hot water fixtures running off different main lines or "trees," you will need a valve on the furthest fixture of each tree. Extra valves come as kits with the faucet coupling hoses. However, you can save quite a bit by buying just the valve as I did, and supply your own hoses. If you do this, be aware that only flexible faucet connector hoses with a one-half inch garden hose-type female connector containing a (normal) internal sealing washer will securely connect to the valve. If your faucet has a 3/8 inch female fitting, you will need a brass male-male adaptor(also available in the plumbing department) to make the connection between the 3/8" female faucet end of the connector hoses and the female connectors of the faucet. Discard the compression ring and fitting that come with the adaptors; you will not need them. Do not try to connect a brass 1/2 to 3/8 inch male-male adaptor to the valve; it will not thread properly and you will break the valve, especially, according to the company, if you try to use teflon pipe sealing tape. If you use the garden hose type connections I have described, everything will fit nicely witout any leaks.

Another tip: Set the temperature of your hot water heater to 120 degrees. Hotter water will eventually damage the valve, which is probably the reason some people have complained that the valves don't last very long. I have not had any durability problems with my valves.

 
5.0

Save Big! Simple DIY project

By Retired Accountant

from Charlotte, North Carolina

Verified Buyer

Comments about Comfort Valve:

Last time this comfort valve needed replacing I used a plumber - expensive!
I found this replacement valve online and installed it myself in 10 minutes - painless process from purchasing to installation.

 
5.0

Replacing this valve repaired my system

By Al

from Dallas, TX

Verified Buyer

Comments about Comfort Valve:

My Grundfos recirculator system recently ceased working after functioning normally for a few years. Since the pump was running, I decided to replace this valve. Now it works perfectly! Other helpful reviewers advised against trying to clean a malfunctioning valve, so I didn't try. But when I took it off I could see some recessed crud.

 
5.0

Hot Water Again

By Steve

from Phoenix, Arizona

Verified Buyer

Comments about Comfort Valve:

We had the Grundfos Recirculating pump system installed on top of our water heater about three years ago. Lately, my wife noticed we were not getting hot water quickly in our master bath where the valve is located under a sink. Along time ago, I figured out to start a diagnosis of a problem with the most obvious thing that could go wrong being first to check. So, I figured it must have clogged up and I ordered a replacement valve. It only took about 10 minutes to change out. Within a day we had hot water again in the morning!

 
4.0

Valve replacement necessary if plugged

By Steve

from Phoenix, AZ

Verified Reviewer

Comments about Comfort Valve:

I had a plumber install the comfort system on our water heater 2 1/2 years ago. It worked great for quite awhile. In Arizona, we have very hard water. My wife noticed this winter it was taking forever to get hot water. I tried to clean this valve out, but it was too plugged up. I couldn't even blow through it. So I ordered a new one, and that solved the problem.

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Q&A: Ask the Questions, share answers

Do you have questions about this product?

get answers from real customers and in-house experts with AnswerBox.

5 Questions | 29 Answers
Displaying questions 1-5
  • Comfort Valve

    Q:

    After the Grundfos valve opens and pumps the hot water to the cold water side, and then is satisfied that you have hot water, does the pump keep pumping? Does the pump shut off and then start up again?
    Asked on 3/6/2014 by Wbb from Ohio

    10 answers

    • VERIFIED BUYER

      A:

      The Pump can be running all the time, or running on a timer, or in
      conjunction with an aquastat, running until the temperature in the piping
      reaches a certain limit, usually 85 to 95 degrees.
      Assuming the pump is running all the time, there is a temperature device
      within the crossover valve that when satisfied, shuts off the cold water
      supply, and limits the flow to the hot water supply only. Assume that it's
      95 degrees. However, unless the pump is on a timer or controlled by an
      aquastat, the pump continues to run, it justs "dead heads" at the hot water
      shutoff. And yes, you could get up to 94 degrees HW in the cold water side.
      Want a product where the pump only runs when you ask for HW? Try the Taco
      OnCommand unit. More money, but you could might be able to save $30 or
      more on your monthly water bill, depending on your usage and number of
      family members. The DOE says that 8,000 - 14,000 gallons of water are lost
      each year waiting on water to get warm.

      Answered on 3/11/2014 by Anonymous
    • VERIFIED BUYER

      A:

      the pump is operated on a programmable timer, so it will pump constantly during the on cycle.

      Answered on 3/6/2014 by Anonymous
    • VERIFIED BUYER

      A:

      On my unit there is a 24hr timer with on/off pins to set - I have the pump come on at 4:30AM and then off at 11PM

      Answered on 3/6/2014 by Anonymous
    • VERIFIED BUYER

      A:

      There is no pump. Water pressure moves the hot water through the valve.
      There is a timer on the recirculater on the valve that will turn off and on
      depending on the times you set it at.

      Answered on 3/7/2014 by Anonymous
    • VERIFIED BUYER

      A:

      The pump keeps pumping.

      Answered on 3/7/2014 by Anonymous
    • VERIFIED BUYER

      A:

      The pump turns on and off via a timer. The valve opens to allow hot water to stay at the hot water faucet.
      Sent from my iPhone

      Answered on 3/7/2014 by Anonymous
    • VERIFIED BUYER

      A:

      Answer:
      The pump has a 24 time clock on it. You elect to either set it to operate in a certain time range like 5AM to 9AM so a morning shower runs hot faster, or have it run continuously. I set mine to run continuously.
      Steve Pisarcik

      Answered on 3/6/2014 by Anonymous
    • VERIFIED BUYER

      A:

      The pump is on a timer and runs when the timer is set to run. When the comfort valve shuts off the pump keeps running and continues to slightly pressurise the hot water line. The pump is a centrifugal pump which is designed to run in this deadheaded condition. It takes very little power when running anyway.

      Answered on 3/6/2014 by Anonymous
    • VERIFIED BUYER

      A:

      Yes, the pump keeps pumping during the timer period you set up for it.
      Whenever the valve starts sensing the water is cold it will open up allowing
      more hot water to arrive, as long as it is in the period the pump is
      operating.
      Doane

      Answered on 3/6/2014 by Anonymous
    • VERIFIED BUYER

      A:

      I think the pump keeps on - it doesn't shut off at all unless you physically
      turn it off at the pump.

      Answered on 3/6/2014 by Anonymous
  • Comfort Valve

    Q:

    Does this valve comes with Flexible tubing or thats extra?
    Asked on 11/11/2013 by whorewer from boston,ma

    4 answers

    • VERIFIED BUYER

      A:

      It’s the valve only.

      Answered on 11/12/2013 by Anonymous
    • VERIFIED BUYER

      A:

      You need to have 2 additional lines to complete the installation
      Sent from my iPhone

      Answered on 11/12/2013 by Anonymous
    • VERIFIED BUYER

      A:

      Valve only
      Y Dov Fried
      D&F Refrigeration

      Answered on 11/12/2013 by Anonymous
    • VERIFIED BUYER

      A:

      No. It is the valve only.

      Answered on 11/12/2013 by Anonymous
  • Comfort Valve

    Q:

    what is a comfort valve and what does it do/
    Asked on 8/17/2012 by JR from Hardy, AR

    7 answers

    • VERIFIED BUYER

      A:

      This is a valve that goes with a hot water recirculating pump that is
      installed on top of a water heater, like a Grundfos. The valve in the
      picture is put under the sink farthest away from the water heater. From my
      experience, the valve lasts about 2 ½ yrs. and then has to be replaced, but
      it’s not a difficult installation and a competent handyman can do it.

      Answered on 8/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Works together with a grundfos pump
      helps for instant hot water at you sink or tub
      Y Dov Fried

      Answered on 8/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      The comfort valve adds another hot water return circulation point. The valves are used in conjunction with the pressure boast circulation pump which is attached to the hot water supply side of your hot water tank. One of these valves should be located at each of the farthest points from your hot water tank. They are in each of my 2nd floor bathrooms in my house. When the hot water temp at the valve decreases in temperature, the valve opens to circulate the hot water and force back into the cold side (cold supply side to the hot water tank). Thus, it gives you almost hot hot water without having to wait. This is a solution if you do not have a built-in hot water loop and it takes a long time for you hot water to reach your faucet or shower.

      Answered on 8/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      The comfort valve is a passive thermostat valve that is connected between
      your hot and cold water lines. It works with Grundfos pump on the hot water
      heater. When it senses that the hot water is getting too cold, it opens,
      the pump will activate due to the pressure drop and allow water to flow from
      the hot side to the cold side. The cold water returns back to the hot water
      heater. This keeps the hot water hot without wasting water.

      Answered on 8/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      A comfort valve works as part of a hot water circulating system. It installs between the hot and cold water lines at the sink farthest away from the hot water heater. It contains a bi metallic valve that opens when the water cools down and then closes when the water heats back up allowing the pump to circulate hot water back to the hot water heater through the cold water pipes.
      Sent from my iPad

      Answered on 8/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      A comfort valve is a temperature control valve that allows hot water to flow backward into the cold water line to ensure hot water at the faucet that it's plumbed under. It must be used in conjunction with a pump which pressurizes the hot water line in respect to the cold water line.

      Answered on 8/18/2012 by Anonymous
    • VERIFIED BUYER

      A:

      This valve is a component of a hot water circulating system that controls the hot water flow that is pumped with a small pump at the hot water tank through the hot water pipe. This valve connects the hot and cold water lines together at the most distant fixture from the hot water tank.
      It is a thermostat valve that allows the hot water to flow into the cold water line that returns to the hot water tank, this action keeps the hot water piping throughout the house warm. This system saves all of the water that went down the drain when we were waiting for hot water to arrive at the distant fixtures.
      Several kinds of the systems are available from Watts, Grundfos and Laing.

      Answered on 8/18/2012 by Anonymous
  • Comfort Valve

    Q:

    Can you install more than one comfort valve on the same system?
    Asked on 7/24/2011 by Anonymous from san angelo tx

    6 answers

    • CUSTOMER CARE

      A:

      You can, and it may be necessary if you have a branched hot water line.

      Answered on 8/4/2011 by PexSupply Staff from NY
    • A:

      Yes.

      Answered on 1/27/2012 by Steve from Phoenix, AZ
    • VERIFIED BUYER

      A:

      Yes.

      Answered on 2/13/2012 by Steve from Phoenix, Arizona
    • VERIFIED BUYER

      A:

      Yes, it sometimes is necessary to handle branched circuits.

      Answered on 4/4/2012 by Al from Dallas, TX
    • VERIFIED BUYER

      A:

      From experience, best to put one at the point furthest from the heater if you have one main branch line and then you will probably only need that one anyway if you dont have long independent runs.

      Answered on 10/30/2011 by MC from Dallas
    • VERIFIED BUYER

      A:

      Yes. See my review for details.

      Answered on 5/11/2012 by Larry from Louisville, KY
  • Comfort Valve

    Q:

    At what temperature does the Comfort Valve switch the incoming hot water from the cold water line to the hot water faucet. And is the temperature adjustable?
    Asked on 3/8/2011 by Les from Reno, NV

    2 answers

    • CUSTOMER CARE

      A:

      This part is just a manifold. It will be up to your pump to control temperature adjustments and the by-pass of cold water.

      Answered on 3/9/2011 by PexSupply Staff from NY
    • VERIFIED BUYER

      A:

      You have control of the temperature on your hot water heater. Setting the time of start and time of stop is the way to the control.

      Answered on 6/16/2011 by MADDIE from WARETOWN, NJ
Displaying questions 1-5

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