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Samsung Heat pump with Yonos Pico circulating pump running all the time

 
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Air Source Heat Pumps (ASHPs)
Last Post by JamesPa 8 months ago
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 Old_Scientist
(@old_scientist)
Honorable Member Member
Joined: 2 years ago
Posts: 414
10/10/2025 3:00 pm  

Posted by: @editor
↑

Posted by: @lch07
↑

We live in a new build estate and he mentioned all of the properties have the same issue, so they are arranging someone from samsung to come and sort them all!

This is going to be interesting because Samsung’s support has always had a questionable reputation. I'll very interested to see how that goes.

At least your pump has stopped running unnecessarily for now.

As a complete aside, one of my guests on the podcast claimed that pumps (in many forms) consume something like 10% of the world’s electricity. If that’s even close to accurate, it underscores how absurd it is that we accept heat pumps with leaking, humming or misbehaving circulators as normal. 

I guess the thinking behind this is that in an ideal world, when the heating is "on", the heat pump will be running continuously (modulating down in milder conditions), so the pumps will be running continuously too. In summer, the heating is "off" and so are the pumps. So in an ideal world there would be no issue.

However, in milder conditions with oversized heat pumps that cannot modulate sufficiently to allow continuous running, some kind of pump control is going to be required.

 

 


Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.


   
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JamesPa
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 3 years ago
Posts: 5026
10/10/2025 3:15 pm  

Posted by: @old_scientist
↑

I guess the thinking behind this is that in an ideal world, when the heating is "on", the heat pump will be running continuously (modulating down in milder conditions), so the pumps will be running continuously too. In summer, the heating is "off" and so are the pumps. So in an ideal world there would be no issue.

I agree with your last last sentence, but for another reason.  In an ideal world installers wouldn't fit buffers so there would be no second pump to run, continuously or otherwise.


This post was modified 8 months ago by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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