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Last seen: Aug 12, 2026
A lmost certainly yes to the first half but in a way could be caused by oversizing. Oversizing means bigger rads. Bigger rads means more output at a...
Thats an assumption you are making and it may well turn out to be true, but the evidence is entirely consistent with that: In the first plot you sha...
Its nothing to do with the heat pump of course, something about the house. It could just be that its very low heat capacity (which can happen if all ...
Now that really is nuts. Hopefully tech support dont suggest to downsize the radiators!
Yes but it reaches a higher temperature than the previous defrost cycles, for which there must be an explanation. This might give a clue to why the r...
Thanks for the extra info. A couple of questions and some comments TWI being the buffer? or something else? If its the buffer 4C is a bi...
@trebor12345 Good data, will examine more closely before commenting. Do you have IAT for same period? Can you clarify what controls the ...
0.5 C per hour is quite fast. 14kW is enormous, how big (floor area) and what construction is your house Increasing emitter size is alm...
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...
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Latest Posts
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@dansus To achieve a full 3kW (3000W / 13A) continuous ...
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RE: PV and battery long payback - sense check query
No - that's what G100-2 gives you. An 8kW inverter that...
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Flushing system, cleaning and inhibitor
Hi all, I have some questions about flushing my syste...
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Depending on your flow temperature you should get a SCO...
By JamesPa , 12 hours ago
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I don't notice mine defrosting, and most of the time Im...
By JamesPa , 13 hours ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
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I meant to say I cannot register my kit at Energyplus… ...
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RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
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RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
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