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JamesPa

@jamespa

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Illustrious Member

Joined: Apr 3, 2023
Last seen: Sep 13, 2025

Topics: 17 / Replies: 2841

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RE: Minimum ASPH outputs?

That's an interesting development, are mitsubishi the first to do this?

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ÀSHP heat loss - how close to perfect can we get?

In fairness it's unlikely that any model will ever take all the variables into account, particularly since the variables may occur in multiple combina...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: The good, the bad and the not that great – my heat pump installation

Good luck! As you have doubtless read here the reported success rate with complaints to MCS is extremely low indeed. They are funded by the industry...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Minimum ASPH outputs?

You will need to go hunting for the performance tables (like the Vaillant one) for the models under consideration, as min output is rarely published o...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: The good, the bad and the not that great – my heat pump installation

Assuming that the installers/MCS etc are still engaged then you should ask and suggest that removing the buffer tank may indeed be the best way to dea...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: The good, the bad and the not that great – my heat pump installation

Very likely. Why is the buffer there in the first place, what was the (purported) rationale to install it?

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ÀSHP heat loss - how close to perfect can we get?

Im late to reply because we have had visitors but... That is two different questions: 1. What is the best way to assess heat loss? 2. What is MC...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ÀSHP heat loss - how close to perfect can we get?

Interesting Yet more evidence for the proposition that reliance solely, or even primarily, on the fabric spreadsheet method is questionable. I c...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Simulation of ASHP with Gas boiler as part of decision process

Im finding it very difficult to believe that there isn't something else going on here. If you want to halve loss (everything else being equal) you ha...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Simulation of ASHP with Gas boiler as part of decision process

@cathoderay Thanks for the update which, together with your other recent posts, seems to point the finger at your oil setup being the mysterious p...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: The good, the bad and the not that great – my heat pump installation

@transparent I love your comment. In 14 years in local government I encountered only 2 politicians who had a clue about even the most basics of ...

11 months ago

Forum