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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 17, 2025
Profile Activity
Topics: 17 / Replies: 2696
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RE: Is it KISS or constant?

Im with @editor on this, but its definitely worth experimenting. Many (including me) do find that pure weather compensation with absolutely no room...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Split system and pipe lengths

Not materially, the amount of air shifted when its cold means that its essentially sampling the general air temperature. If it can be in full sun the...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump

Was there any more detail or it that it? Its over 8kW, and by the time they make an allowance for DHW they would be able to argue for 12kW based on t...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: What is the best strategy for operating a very oversized heat pump?

I have to agree that in many cases ToU tarrifs will dominate. I guess I should've framed the question as 'in the absence of ToU tarrifs!

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?

Not sure about this. The heat pump sees the water returning from the fins, which will be at a temperature determined by the defrost process not any t...

5 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?

Not sure about this. The heat pump sees the water returning from the fins, which will be at a temperature determined by the defrost process not any t...

5 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant

@eliuccio Unfortunately, whilst I agree with a lot of what is said above, I dont agree with all of it. For clarity: Firstly Whilst I agree t...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

Whilst I agree with the final conclusion (flow side placement appears to be best, perhaps with the exception that if the volumiser is outside the insu...

5 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: What is the best strategy for operating a very oversized heat pump?

It makes sense, although shows a complete lack of thought on the part of the designers (which is disappointing) about the things that they could do, w...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump

No need for apologies, just cautioning about getting too hung up on all of the mistakes (of which there appear to be plenty enough to make a case) and...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung Gen 7 R290 12kW is not behaving how I expected

Definitely its in the 20xx FSVs. Conversely it may be that you need to reduce 2022/2032 further as well as changing 2093 so it operates on pure WC. ...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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