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Lucia
@lucia
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Joined: Jun 22, 2024
Last seen: Dec 4, 2025
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Topics: 14 / Replies: 340
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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. 🤬

2 years 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 ...

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

@gunboatdiplomat I haven't done a Heat Geek calc but have done a de Podesta calc on 1year's metered gas use (which HG reckon is ok). This gave me 5.61...

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

@bontwoody yes, I understand about larger rads and lower flow temperatures what I don't grasp (and that page doesn't explain because I don't see any m...

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

@dougmlancs Thank you - that's definitely worth a try. I know the loft insulation was done in 2006 and the firm went bankrupt (my GBIS assessor found ...

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

@johnmo You have to extract everything first and only then can you refill it. Even for a small bungalow like mine it's £3,000 at least. I can't afford...

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

@toodles No, it can't be topped up.

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

@johnmo You have a 6kw Daikin? Good point about the bucket... My preference if going for the 6kw is to try and convince Octopus to accept it. I ...

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

Help! 😵‍💫 I now have 2 MCS calcs @ 45º flow temp how do I plot a compromise between the two? 1: Fully insulated cavity wal...

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

@jancold I was told by sales it would be a long wait but it came through pretty quickly. I only waited about 3 weeks. Install is proposed for Octob...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: What is the most important factor for you when choosing a heat pump brand?

@judith did you see the link I posted yesterday in my 2 choices thread 'my new toy' ? It's worth checking for Daikin - you can set up the pump model &...

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

@jancold BG's quote for me is over £1000 higher than Octopus - without counting that Octopus will remove my gas connection and cap it off for free and...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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