Last seen: Sep 8, 2025
A quick and dirty spreadsheet plot of LWT and DHW tank temp, firstly over a few days, and then zoomed in (two hours) over a DHW heating period: ...
@filipe - I think the reason why you haven't received any comments so far might be because you are over-complicating things. COP, for example, is at i...
Another carrot, which I had hoped to include in yesterday's post, but ran out of time, having lost four hours in the morning to the power cut. One o...
Thanks for adding this, good clear explanation. To add a probably superfluous analogy, given an old fashioned telegraph system, the wires and all the ...
This is the route I went down. At this very moment I have my earlier Home Alone with Home Assistant setup (uses a painfully complicated wifi/LAN setup...
It's actually a work in progress type thread, which will ultimately be boiled down to a Beginner's Guide to Heat Pump Monitoring v2 (v1 ended up as Ho...
PS I should perhaps add in that I myself am not immune to redundant word situations, which on rare occasions may spill over into ongoing redundant wor...
I'm sorry, but I still don't understand what that image shows. Frankly, it's verging on dreadful. I guess it is what happens when you try to do things...
@filipe - the problem I am trying to deal with is the lag: at any one reading (all the data is collected in one go once a minute), the energy out has ...
Here is a rather cryptic table of htg and dhw COPs with the amps_in shifted downwards one cell at a time: Shift 3 sort of works initially, but the...
@filipe - this is the key data at the transition time with rather meaningless minute COPs added but they do show how the abberation occurs: At the...
Latest Posts
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
Is that heat loss, or maximum output of the ASHP? Unde...
By Scalextrix , 10 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan Fully agree with you. It shouldn't be the homeo...
By HCas , 12 hours ago
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RE: Solar Thermal DHW and ASHP
@judith That makes sense to me! If I was in @alex_n '...
By HCas , 12 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
Good unit. And the 10 kW is the same as the 12 kW I ...
By HCas , 12 hours ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 15 hours ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 17 hours ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 22 hours ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 1 day ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 1 day ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
By Tasos , 2 days ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 2 days ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Ooh, heat pumps in neon blue wrap 🤣 🤣 &...
By Old_Scientist , 3 days ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 4 days ago
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RE: Are Octopuses Slowing Consumer Adoption of Heat Pumps?
I mean, is this surprising? The local installers in my ...
By Alex , 4 days ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 4 days ago
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RE: Boiling Mad: Exposing Radiatorgate
Hi @Rob, I’d be more than happy to contribute. I have ...
By DREI , 4 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@andris a great year - very happy with our system
By Profzarkov , 4 days ago
