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MattC
@mattc
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Joined: Jan 16, 2024
Last seen: Mar 5, 2025
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Topics: 1 / Replies: 40
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RE: New ASHP system - choices

@jamespa Thanks. I'd already concluded that the higher estimates are excessive, which is why I'm going with the lower of the three figures that I'...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

@gary Thanks. House is a similar size to ours. It's interesting that you find even the 8.5kW Ecodan is overpowered. We got three surveys that cam...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

@gary Thanks. If you don't mind me asking, what is the size and/or heat loss for your property? Or the usual daily heat output and COP from your Eco...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Microbore Central Heating Plumbing, will it be a barrier / pain?

@ianmk13 I assume you've considered upgrading from K2s to K3s where possible? This should give you at least 30% extra output for the same wall space.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

@harriup Thanks again. I've explored quite a lot of data (and plotted many graphs), but only have daily gas consumption figures from late January ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Microbore Central Heating Plumbing, will it be a barrier / pain?

Five of our 14 radiators are supplied with 10mm plastic microbore, with the rest on 15mm copper. The microbore is all installed behind plasterboard wa...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

@gunboatdiplomat Interesting comparisons. It looks like we have very similar properties though ours is probably slightly better insulated as 80% o...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

For completeness and for anyone who's interested, here are the design and performance parameters, as described by each supplier. Supplier ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

@mike-h Thanks again. The installer I'm leaning towards (Puraflow) seems to have consistently good reviews on TrustPilot and I've been generally i...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

@majordennisbloodnok Thanks. Similar installation cost again. Looks like RHI was a really good deal. The new BUS grant is £7500 (formerly £5000) wh...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New ASHP system - choices

@harriup Thanks for the useful insights and for taking the time to reply.Your similar installation cost with the 8.5kW Mitsubishi does at least help t...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP system - choices

Does anyone have any thoughts about question 1 (installation cost)?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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