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Heatgeek
@heatgeek
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Reputable Member
Joined: Dec 16, 2024
Last seen: May 29, 2025
Profile Activity
Topics: 1 / Replies: 116
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@uk_pete_2000 I think we have some misunderstandings here. You previously indicated that you have a passive house (<10W/m2 or ~5kW peak loss) but i...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@uk_pete_2000 I have perused your data again. As far as I can see there is no way that you can efficiently use such a large HP to directly heat your e...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@uk_pete_2000 Sorry, I forgot to say that in my second case of 12 hour heating period, a double size HP would be required i.e. 10kW to deliver double ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@jamespa I have been quietly following all of this in amazement at some of the statements, especially about over-sized HP’s being more efficient. The ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat loss calculators and spread sheets

@sicky This one is not too bad if you have all the correct data. It is just tedious getting the data and filling it all in as there is a lot of detail...

5 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
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RE: Heat loss calculators and spread sheets

@editor Copy of information from my first post FYI. This tool is very comprehensive but not for the faint-hearted. "To calculate the heat loss a...

5 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

@jamespa I am reposting this due to my revisions being gobbled up by this site. I have tried to remove the confusion and ambiguity caused by my previo...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

@jamespa Invoking Occam’s razor in this context does not help. In engineering, there are right answers and wrong answers, not alternative facts. Neve...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

I am new to this forum. I am amazed at the breadth of discussion on this topic but have not absorbed everything. There are interesting snippets and so...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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