Last seen: May 29, 2025
@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...
@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...
@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 ...
@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 ...
@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...
@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...
@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...
@jamespa Invoking Occam’s razor in this context does not help. In engineering, there are right answers and wrong answers, not alternative facts. Neve...
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...
Latest Posts
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RE: Why do we need pressurised systems?
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@jamespa that is quite important. It would be good if t...
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
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RE: Help me keep the faith with my air source heat pump installation
Great news I edited my previous post (probably af...
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RE: Double or Triple Glazed Windows?
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RE: 300 Liter Tank - Do I have to heat it all?
I agree with @morgan. You can turn down the target t...
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
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RE: Fitting new shower valve ..........
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You should contact the council and report the unsatisfa...
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RE: Benefits of an extra horizontal loop for GSHP
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RE: Say hello and introduce yourself
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RE: Compressor and Evaporator Stratification
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RE: Is this just haze or something more?
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RE: Tesla Powerwall – More of a ‘Luxury’ Than an ROI Winner!
We had our Tesla Powerwall 3 (and Gateway) installed ea...
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Indeed. With a battery its presumably the battery con...
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RE: No-code, plug-and-play monitoring for your heat pump
To update an ESP device using ESPHome in Home Assistant...
By Grantmethestrength , 4 days ago
