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Last seen: Nov 3, 2026
I suspect, but have no evidence, that defrost is very variable according to location and time. There are places in the UK that are very humid and pla...
Thats a lot of defrosts although in fairness my Vaillant gets up to one per hour at times I don't know what you can do, if there are plants or anyth...
I think your concerns about abnormal refrigerant temperatures have been answered in this post. Once we have some data we can look at whether the fre...
@sim0n0 Sorry to hear that. Putting the past aside would you like to describe the current problems and tell us a bit about your system and house in...
Maybe. It says 'outdoor evaporating temperature' (not refrigerant temperature) - its not clear what that means and the graph seems to define a region...
The dominant loud noise is the compressor or fan which you expect to be working at max during defrost. The background rattle could just be ice, ice ...
Curious that it reduces the flow rate at higher flow temp. I wonder what the logic is of that? If it were looking to maintain a specific DT then it ...
I'm not so sure this is a great surprise, there is not much it can do about DT unless it can ramp up the water pump speed, which at some point it will...
@crimson Noted. At least you now have a confirmed route forward and a warm house. That, in itself, is a step forward however frustrating ...
Or just commission a plumber to do the replumbing? As soon as you touch it your installer will argue that it voids the warranty and I doubt any thir...
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Degrees of Separation
Latest Posts
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RE: Adding data centre electricity costs to domestic energy bills?
Environmental issues: Xlinks say they'll fill their c...
By Transparent , 31 minutes ago
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RE: Why don't people choose heat pumps?
Surprised that you have to ask that question. Money, ...
By hml1827 , 1 hour ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Agree with everything else. Personally I think the as...
By JamesPa , 3 hours ago
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There's a company called Xlinks who are proposing just ...
By Transparent , 4 hours ago
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RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
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RE: Octopussy cosy 6 experience
@paultheheating Unless things have changed more recentl...
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
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RE: Solar Power Output – Let’s Compare Generation Figures
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RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
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RE: 15kw pump for 225m2 1990's house - over kill?
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@etchedpixels Agreed, just a thought for others. I am...
By Watcher , 3 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 4 days ago
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Coming back on subject... A shortened version of the ...
By Transparent , 4 days ago
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RE: Say hello and introduce yourself
Perhaps it is time for an update on ‘our’ project. We h...
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