Last seen: Jul 30, 2025
I agree, it does seem high, and I get reminded every time I see the DHW tank temp chart. It's the fairly common I think Telford Tempest Heat Pump mode...
Me too, but I fear it is a fact of life that modern DHW tanks aren't in fact that well insulated. Mine drops most days by about ten degrees, from 50 d...
On a positive note, something of a breakthrough on the energy in calculations, and the need for a 1.18 correction factor. Against expectations based o...
I do understand, and your thoughts are also very much in my mind. I have tried to operate restraint, but in my defence, I do have to say that within...
Well, that's all good then, it means you understand the effect you have on people. But I still don't understand why you don't want to verify (or oth...
Given your low confidence in and derision for my data, my calculations, my charting and my interpretations, I think it is best if I give you the raw d...
This is an extremely interesting idea, and the fitting of computer fans is well within my DIY capabilities. Being low voltage, they would be easy to s...
I've already done that, it's in the December data I posted yesterday. You will need to do the regression, using only non-setback days, but that's no b...
Again, this is the wrong question. The short answer is that it doesn't cause the IAT to rise because the 'predicted none setback scenario' never actua...
@derek-m - it seems to me that you might be moving close to torrents of abuse territory. I can take it, but it is not pleasant, and I am sure others d...
@derek-m (and anyone else who wants it) - here is my December 2023 hour and minute data in csv format:
For the umpteenth time, I post my data and ideas so they can be reviewed, successes approved and errors pointed out. If I am not happy with this, I ha...
Latest Posts
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RE: Help me keep the faith with my air source heat pump installation
@jamespa i just want it right at the end of the day, th...
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RE: Double or Triple Glazed Windows?
As I have reported elsewhere, we replaced all our glass...
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How to waste energy (and time) playing with AI.
A friend of mine who subscribes to an AI service was ex...
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FRV valves - can you mix and match
Great video again this week @editor, I am very interest...
By Grantmethestrength , 8 hours ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
@topher you’re more than welcome to, yes. I’ll send you...
By Mars , 1 day ago
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RE: Fitting new shower valve ..........
I’ve never taken a chance when fiddling and changing ou...
By Mars , 1 day ago
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You should contact the council and report the unsatisfa...
By JamesPa , 1 day ago
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RE: Benefits of an extra horizontal loop for GSHP
I would deffo install an additional slinky run, especia...
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RE: Say hello and introduce yourself
@editor fab - thanks Mars, and keep up the great work o...
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RE: Compressor and Evaporator Stratification
@trebor12345 So I think the 1st zigzag section shows so...
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RE: Is this just haze or something more?
@majordennisbloodnok I was giving a talk to primary sch...
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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...
By Old_Scientist , 3 days ago
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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 , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 6 days ago
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RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
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RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
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RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 1 week ago
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RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 1 week ago
