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bontwoody
bontwoody
@bontwoody
Contributor
Noble Member
Joined: Mar 5, 2022
Last seen: Aug 4, 2026
Topics: 39 / Replies: 1015
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RE: ASPH Sizing Confusion

@fazel Agreed, but the highest COPs are clustered around the 9kW load so shouldnt we aim for the mode output to be in that region?

3 years ago
Reply
RE: ASPH Sizing Confusion

@fazel Ah, I see, that would account for what appears to be a smaller delta T at the lower temperature. Does the increase in off cycles negate the p...

3 years ago
Reply
RE: ASPH Sizing Confusion

@Kev_M I was thinking about the right hand graph again last night Kev. My understanding of it is that the different plots for A12, A7, A2 and A-7 ar...

3 years ago
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RE: ASPH Sizing Confusion

@Fazel @Derek_M Well here is some interesting behaviour last night. I lowered the flow temperature at the top end of my WC curve by 2 degrees bringi...

3 years ago
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RE: ASPH Sizing Confusion

@derek-m Thanks, Im going to try some of these ideas now, however I noticed on Glyn Hudsons second video that his heatpump became unrelaible at abot 3...

3 years ago
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RE: ASPH Sizing Confusion

@kev-m Well if im reading the graph on the right properly, its suggests that at all plotted ambient temps, the 11 kW heat pump has its highest COP at ...

3 years ago
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RE: ASPH Sizing Confusion

@fazel Well thanks Random Internet Guy, good superhero name!

3 years ago
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RE: ASPH Sizing Confusion

@fazel Just noticed your question on indoor temperature. I have the thermostat on the controller set to 23C in the hall area (we do like it warm, henc...

3 years ago
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RE: ASPH Sizing Confusion

@fazel I dont mind at all! All help greatfully accepted 🙂 Is that Trystan? I havent had a cold day yet, so I will try and lodge the task in my brain...

3 years ago
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RE: ASPH Sizing Confusion

@Derek M @JamesPa Thanks both for an interesting and illuminating discussion. By way of a practical example Ive attached my heat pump graph for yester...

3 years ago
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RE: ASPH Sizing Confusion

@jamespa I sympathise James, the same arguments apply around the 'war on cars' once people get used to something, having something slightly less conve...

3 years ago
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RE: ASPH Sizing Confusion

@iancalderbank lol maybe frogs have the right idea after all with respect to child care 🙂 Good point!

3 years ago
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