Grundfos Vs. Watts Recirculating Pump | Which One Should You Pick?

Comparison, Tankless Water Heater

Grundfos Vs. Watts Recirculating Pump
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From the title of the post, you would’ve easily understood the comparison that we’re gonna do in this post.

In layman’s terms, both Grundfos & Watts are good in their own sense and come with their own sets of pros and cons.

So, tagging one as a better product than the other on absolute terms would be unfair.

However, depending upon your requirements and budget, one can be better than the other for you in a relative term and I totally agree with it.

Meanwhile, what I’ll do is walk you through the various aspects of both the products so that you can make an informed purchase decision.

Does it make sense?

So, without any further ado, let’s begin…

Grundfos Vs. Watts Recirculating Pump | Comparison Chart

Watts 500800Grundfos 595916
Timer, fittings, and check valveTimer, fittings, and check valve
1-Year limited warranty2-Year warranty from the date of installation
Water heater installed systemWater heater installed system
Weight: 8 lbsWeight: 6 lbs
Check Current Price On AmazonCheck Current Price On Amazon
Grundfos Vs. Watts

Just by having a glimpse of the aforementioned Grundfos Vs. Watts comparison table, anyone can easily infer that both come with almost similar features.

However, Grundfos 595916 is comparatively lighter and comes with an extra year of warranty so if I’ve to choose one then I’ll definitely go with Grundfos 595916.

At, we’ve been recommending Grundfos 595916 to our clientele for quite some time and the feedback that we’ve received so far are positive, encouraging, and above our expectation.


How Long Do Grundfos Pumps Last?

Well, Grundfos pumps can last for at least a decade if not more.

However, you need to ensure that these pumps are properly cleaned and maintained.

Failing to do so can drastically reduce the lifespan of Grundfos pumps.

How Does Grundfos Recirculation Pump Work?

I’m attaching a self-explanatory video for your perusal.

In case of any query or doubt, please feel free to reach out to us via the contact form, and our team would be more than happy to assist you.

How Does Grundfos Comfort Valve Work?

I’m attaching a self-explanatory video for your perusal.

How Do You Tell If Grundfos Pump Is Working?

Finding whether the Grundfos pump is working or NOT is simple, easy, and will not consume much of your time.

All you need to do is to gently place your hand on the pump, and if you feel some sort of vibration, as well as the pump, is warm then definitely, it has power.

Moreover, if the boiler is having power and your pump doesn’t have then the issue would be either with wiring or fuse.

Can Grundfos Pumps Be Repaired?

Yes, Grundfos pumps can be easily repaired.

If you’re having any issue with your Grundfos pumps then the best thing that you can do is to contact the Grundfos customer service and trust me, they will do the needful.

I’ve personally contacted them quite a few times and till now, my response has been good.

Link to Grundfos Support, Repair, and Maintenance

How Do I Reset My Grundfos Water Pump?

The Grundfos water pump comes with an auto-reset function that can be activated/deactivated by simply pressing the ON/OFF button for 5 seconds.

Just a point of caution – whenever water is consumed, the pump will start and stop automatically irrespective of the fact that whether the auto-reset light is on or off.

Should My Grundfos Pump Be Hot?

Well, your Grundfos pump can be warm for sure.

However, if your pump is functioning normally then it shouldn’t be hot at all.

In case, the heat gets unbearable then you don’t have an option but to look for ways to fix it.

The best thing that you can do is to contact Grundfos customer service for an effective and quick solution.

However, if your Grundfos pump is turned off for too long then in such a scenario, it’s normal for the pump to get hot.

Mostly, it happens when you turned off your pump during summer.

How Do You Bleed a Grundfos Circulating Pump?

I’m attaching a self-explanatory video for your perusal.

Where Are Grundfos Pumps Made?

The Grundfos pumps are made in Denmark and the brand is a global leader in advanced pump solutions and also a trendsetter in water technology.

Many of my readers wouldn’t be aware of the fact that the brand since its inception in 1945 has flourished from one small factory in Bjerringbro, Denmark to a global corporation comprising more than 80 companies and over 18,000 employees. In 2012, Grundfos reported net revenues totaling $4 billion.

How Do You Replace A Grundfos Recirculating Pump?

I’m sure that the below-mentioned video will do the trick for you.

Do reach out to us in case of a doubt or a query, and I would be more than happy to assist you in the best possible manner that I could.

How Do You Prime A Grundfos Pump?

Well, the below-mentioned video will help you to prime a Grundfos pump.

Do get in touch with our team in case of a doubt or query.

What Does Red Light Mean On Grundfos Pump?

The red light present on your Grundfos pump is an indicator and will enter permanently turn on or will flash whenever your pump gets stopped due to an operating fault.

Why Is My Grundfos Pump Noisy?

There could be numerous reasons for your Grundfos pump to be noisy, and the most common would be due to the air locking of the pump.

It’s quite common that air gets into the system and as a result, there would be a creation of noise not only from the boilers but also radiators and heating pumps.

All you need to do is to get rid of your Grundfos noisy pump is to bleed out the air from the system.

What is the Difference Between Grundfos 15 50 and 15 60?

The difference between 15 50 and 15 60 on a pump is the “maximum head/vertical lift,” or the pump’s capability to pump heating water upwards.

15 50 means a maximum head of 5 meters, whilst the 15 60 translates to 6 meters.

Wrapping Up | Grundfos Vs. Watts Recirculating Pump

First and foremost, I need to thank you for being with us till the end.

Secondly, I would like to bring to your notice that I along with my core team have put loads and loads of effort in coming up with this idiosyncratic superlative piece of information on Grundfos Vs. Watts.

And, in case, you liked my effort and want to appreciate it then please do share this post with like-minded people and the ones who are searching for it.

Cutting long-story-short, we’ve tried to the best of our capabilities to help you reach a conclusion.

Do let us know in the comment section, to what extent we were successful in helping you out.

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