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Lucia
@lucia
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Prominent Member
Joined: Jun 22, 2024
Last seen: Sep 10, 2025
Profile Activity
Topics: 13 / Replies: 303
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RE: Advice on ASHP choice needed

@pie_eater I'm just offering my 2 cents to say I agree with the comments - your installer sounds a wee bit er... flakey. MCS guidelines are exactly ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@derek-m So I can't just compare the delta T @ 30 for both rads? Oh. my. days... I think I need to go to college for this. Back to playing with Heat ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@jamespa I'm using the Delta T watts for both - proposed K22s and my existing K11s. Is that not right? 🙈 One designed for 50º flow temp the ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

I have just discovered that BOTH my installer's heat loss proposals for 4 kw Daikins (based on imaginary heat loss and imaginary fully insulated walls...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

This is such a good analogy - it has really helped me to see the problem. I didn't realise that higher inside temps meant more heat loss. I don't kn...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@jancold Me too! 😁

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@heacol thank you Brendon - that's helpful. BG want a buffer tank Octopus want a volumiser. To be fair, I didn't push back on the buffer with BG ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

@derek-m Thank you. If you get time please either have a look at the images I put in a post roughly a page back. Or see below: I got a link from Op...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@gunboatdiplomat I was being a muppet, sorry. 🤦🏻‍♀️ The Heat Geek guesstimate is double the Octopus quote for a...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

@derek-m Thank you - that's great imagery - I have that kind of a visual brain so it appeals. I will play with it this weekend and have a go at tryi...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@derek-m I 2nd that and keep it slow and agonising for cavity wall insulation sharks. 🤬

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Two possible heat pump routes - how to evaluate them?

@bontwoody Theirs (from your link) is even lower than the MCS calcs. HG = 3kw BG = 3.5kw Oct =4.? These are all estimated ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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