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Grundfos Comfort System - Programmable Digital Timer Kit - Battery Backup
Model:
99521972
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Features
The Grundfos 99521972 is a digital timer kit for the Comfort System hot water recirculation pump. This programmable timer features intuitive settings for time, region and date. Compatible with all Grundfos line cord products, the Grundfos 99521972 serves as a user-friendly control for your domestic hot water needs. An included battery back up will maintain settings in the event of a power outage.
Specifications
99521972

General Information
Type
Digital Timer
Product Line
Comfort System
Programmable
Yes
Dimensions
Product Weight
1 Pound
Reviews
(8)
Grundfos 99521972 Reviews & Ratings

Great Programmable Timer
By John E
Ontario, Oregon
Purchased 03/15/2021 |
Review Posted 04/06/2021
This timer works great and was easy to set if you follow the directions.
John E Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Id Buy It Again, Price, Reliable

Quality
By Dave R
West Palm Beach, Florida
Purchased 03/06/2021 |
Review Posted 03/30/2021
Recommend. Quality. Exactly what you want in timer!
Dave R Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Id Buy It Again, Price, High Quality

Saving Us A Ton On Propane!
By Alani I
Belchertown, Massachusetts
Purchased 01/19/2021 |
Review Posted 02/10/2021
We needed our circulating pump to be on a timer and this does the trick, our boiler turns on less than half the times it us to. So for about $60 with shipping we are saving tons of money in propane.
Alani I Recommends This
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Rating Breakdown
4/5
4/5
4/5
4/5
Pros:
Easy To Use, Reliable, Light Weight
Cons:
Expensive

Fantastic Addition To A Regular Pump
By David B
Fayetteville, North Carolina
Purchased 06/06/2020 |
Review Posted 06/29/2020
Added this to a different brand pump because it seemed to be the best on the market. Works perfect, simple to set up. Glad I found this. Highly recommended!!
David B Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Id Buy It Again, Light Weight, Fast
Cons:
None

Great timer.
By Gregory K.
Fallbrook, California
Purchased 04/22/2020 |
Review Posted 06/26/2020
Power outages do not affect the programing that you set in the timer.
Gregory K. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Price, Reliable, High Quality, Id Buy It Again

Best timer with easy setting up schedules
By Sheng T.
Tustin, California
Purchased 04/17/2020 |
Review Posted 05/08/2020
The unit is a bit expensive but it is worth it.
Excellent built quality, easily set up schedules and very flexible.
It was in used for few weeks and showed as reliable unit - started and ended meeting all programmed schedules
I strongly recommended if you are looking for reliable automatic timer.
Excellent built quality, easily set up schedules and very flexible.
It was in used for few weeks and showed as reliable unit - started and ended meeting all programmed schedules
I strongly recommended if you are looking for reliable automatic timer.
Sheng T. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
4/5
Pros:
Easy To Use, Exceeded Expectations, High Quality, Id Buy It Again
Cons:
High cost but that what you paid for quality unit

Great Fix If The Built In Timer In Your Pump Is Bad
By Richard P
San Luis Obispo, California
Purchased 04/10/2020 |
Review Posted 05/05/2020
In the past, when the timer on my Grundfos pumps has failed, I had to purchase an entirely new pump. This timer allows controlling the pump without relying on the pump timer. In addition, since this timer is digital, it allows different programs on different days of the week. For example, you may want the pump to perform at different times on the weekends.
Richard P Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Features, Easy To Use, Quiet, Price

Digital timer for hot water recirculating pump
By Stephen R.
Reno, Nevada
Purchased 02/10/2020 |
Review Posted 03/04/2020
So far, the digital timer has worked great. It is made to handle the hot water recirculating pump and I expect it to be in place for a long time. This is after two other digital timers of another brand both failed.
Stephen R. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Durable, Features, Easy To Use, Reliable
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Grundfos Comfort System - Programmable Digital Timer Kit - Battery Backup


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