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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 12, 2025
Profile Activity
Topics: 17 / Replies: 2129
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Reply
RE: My ASHP is not performing as well as I’d hoped: COP just over 2

If you search the forum, you will find countless examples of people doing exactly this. The vast majority of heat pump controllers will give you this ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

@judith - good points and useful links. I suspect solid stone walls, which I also have, will often be something of an unknown, because they can be ver...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

Welcome to the wonderful world of heat loss calculations! Looking at your heat loss calculator worksheet, the living room and kitchen both have very...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

Thank heavens for the facilitating of small mercies. At least he didn't 'reach out' to let you know, though if he had, he might have 'reac'd out'. The...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

I think you need a bit more than vague assertions followed by spurious decimal places! I also get worried when I see a turn of phrase like "At this ti...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

You are very kind, thank you!

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

Takeaways? Can I suggest: 1. The big players are best suited to off the peg installs into unchallenging settings. This relies on the big players bei...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

@derek-m, you beat me to it - I had just written something very similar (but not the same, I separate all the design from the installation): Another...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

@damon - as I said right at the start of my last post, "This is a difficult one, and I don't know the answer." But I think it is an important question...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

This is a difficult one, and I don't know the answer. Some thoughts: Arguments for and against 'free' surveys: they allow a customer to get more quo...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

Looks like it is currently £7.5K for an ASHP (but not as part of a hybrid system), see here. There will probably be other conditions that apply. Giv...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

That might provide a way to move on. I doubt your installation will be an off the peg one, you will need an experienced installer (blame me for saying...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Page 65 / 179
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