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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Jul 9, 2025
Topics: 5 / Replies: 495
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

As per Robs comment @robs this is a R290 model which will operate down to 2kwh output…. ironically R290s are being hailed by some as the high te...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

james you appear to be sighting an example which I have never said. I have never asserted this statement so I don’t see why you are saying it. Abov...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@jamespa apologies James I’m on a train so dashing between platforms

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@heatgeek I wouldn't normally comment on such a varied emitter scheme. I think I’m just trying to establish a few principles of HP operation in a simp...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

My first thoughts are that the process is more dynamic than your model suggests. Your idea that demand is determined by the house isn’t quite how I se...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

hi @jamespa Thanks for your reply. Thinking I can see a pretty good analogy and I will post it in the morning. 👍

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Yes I think That’s quoted quite a lot if I’m getting your ratio of 3 correctly. The problem is, like all rule of thumb approximations is that that man...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Thanks for the nod James Hopefully my hand drawn “spreadsheets” are working now…. and the more detailed spreadsheet….. I hope the numbers are ...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Thanks for the official documentation info @transparent . I hadn’t read the most recent offering…. Is it me or does it really avoid tying anything dow...

5 months ago
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

not sure I agree… most of the sizing issues can be done at the design stage as a calc exercise. And as you and I have discussed previously… the design...

5 months ago
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