Last seen: Jul 29, 2025
I finally found something in the minimalmodbus manual on how to read individual bits from a 16 bit register: Reading individual bits from a 16-bit...
@derek-m - thanks. There are lots of versions of this table around, and they are all slightly different. Here's a scan of the same part of the table f...
@derek-m - I am very wary of writing to any register until I am absolutely sure what I am writing to, hence the attempts to reliably read the data bef...
@derek-m - I agree, see above, the efficiency loss caused by raising the LWT matters, but I still think empirical data is the best way to determine ho...
I have in fact covered this elsewhere, things do get rather scattered all over the place, and @derek-m also covers it above. It is one of the factors ...
Another possibly (or possibly not) interesting insight. I have now changed (in the data file) the Set LWT during the non WC period to what it actually...
I have now determined that the 1800 run of the auto-adapt script yesterday somehow turned off the WCC, and put the heat pump into fixed flow temp mode...
"Which of those wins" - that is exactly the question that I am trying here to answer empirically. It is fair to say that a number of opinions have bee...
But we aren't trying to back fill the preceding valley, so to speak. Consider setbacks of varying lengths, let's say four hours and eight hours (set b...
This is absolutely the way to go, and the only way to get real world answers. Your sudden jump at 0700 (which I think may refer to 0600 to 0700, de...
@gary @newhouse87 - I don't have UFH or an off peak tariff, so my current strategy is a bit different. I do have a house with a high thermal mass for ...
Standard weather compensation doesn't work well with setbacks, the logic uses only the OAT and doesn't know the IAT is below what it should be. I di...
Latest Posts
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@majordennisbloodnok Thank you. I have sent a very ster...
By El3b , 24 minutes ago
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Fitting new shower valve ..........
This may be too generic but I need to change the ...
By Lenny , 2 hours ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
So the manual is correct and looks fine to me, to abbre...
By ASHP-BOBBA , 6 hours ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
Hi I, like others, avoid Amazon for ethical reasons....
By Topher , 7 hours ago
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RE: Benefits of an extra horizontal loop for GSHP
I would deffo install an additional slinky run, especia...
By Transparent , 7 hours ago
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RE: Say hello and introduce yourself
@editor fab - thanks Mars, and keep up the great work o...
By normpang , 8 hours ago
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RE: Compressor and Evaporator Stratification
@trebor12345 So I think the 1st zigzag section shows so...
By ASHP-BOBBA , 23 hours ago
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RE: Is this just haze or something more?
@majordennisbloodnok I was giving a talk to primary sch...
By Toodles , 1 day ago
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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 , 1 day ago
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Indeed. With a battery its presumably the battery con...
By JamesPa , 1 day ago
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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 , 2 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 , 5 days ago
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RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 5 days ago
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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 ...
By Old_Scientist , 5 days ago
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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 , 6 days 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 , 6 days ago
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RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 6 days ago
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RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 6 days ago
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@seatonian got your email. Will connect you with a reco...
By Mars , 1 week ago
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@downfield and @toddles, this isn’t in the settings cur...
By Mars , 1 week ago
