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Last seen: Oct 16, 2026
These systems should work fine without requiring the user to become a part time heat engineer and plumber. Unfortunately, visits from the "tech wizard...
It's possible to estimate the minimum power from the inverter modulation range, often called "Compressor Hz" in the technical documentation: for my LG...
This looks like a practical solution 👍
Here's a LibreOffice spreadsheet. I put the formula for pipe pressure drop in a macro, so you'll have to enable macros in the options when it loads....
Pylontech US5000 stores about 4.3 kWh accounting for inverter losses and costs 1000€. Over 3000 cycles this means one kWh going through the battery co...
I also totally agree with the recommendations from Mars and James 🤣 All installers who came here wanted a big buffer tank. When I attempted...
Yes, here's mine. From the service manual parts numbers (compressor etc), the 12-14-16kW models are identical, and all are actually "much more than 16...
Had to learn the hard way 🤣 now I'm sharing The house has underfloor heating with non barrier PEX installed by the previous owner, this ende...
I'm going to install Thermacome ACOSI+ radiant ceiling. It's a French product, so perhaps not available in the UK, but still some important points: ...
@mk4 Charge to 100%, discharge down to 10%.
This mess is intriguing: I wonder if this represents cycling, and if so how long the cycles are. But I don't see cycles on the water temperature c...
ASHPs do have a minimum compressor speed. The minimum heat output at that speed depends on air and water temperature. 12kW Vaillant with 45/40°C wat...
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Degrees of Separation
Latest Posts
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RE: Renewables & Heat Pumps in the News
Years ago I worked for a company who won a best in show...
By EtchedPixels , 58 minutes ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Has anyone here had a Cosy 12 installed yet?
By Mars , 3 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
But looking at your graphs, why are your LWT and RWT cy...
By Temperature_Gradient , 3 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 1 day ago
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 1 day ago
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RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 1 day ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 1 day ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 1 day ago
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@bobflux Thank you for your response. I am trying to ...
By RonV. , 1 day ago
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This post is about how I successfully configured a buff...
By Tony.Stolz , 1 day ago
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The installer visited yesterday and suggested the noise...
By JamesChatz , 1 day ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 2 days ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 2 days ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 2 days ago
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