Last seen: Nov 19, 2025
@jamespa - I agree about the need for stats on real world numbers on system failures caused by freezing, but I am not sure they exist, meaning we have...
@jamespa - I am still stuck in an uncertainty loop about the effects of glycol on system performance. Starting at the beginning, why add glycol in the...
But does the heat pump know it has glycol in it? Isn't output normally controlled by the weather compensation curve (water law in Samsung) - if it is ...
I'm back on the case, in particular, deciding what to measure and how. The idea is to get some measurements that aren't derived from the Midea wired c...
The short answer, on paper, is yes, but it is not that simple. In practice, glycol is simpler, whatever happens, as long as it is there, and the temps...
This is another persistent myth that needs to be dispelled. A building does not care one bit where the heat that heats it comes from. It is perfectly ...
Indeed it does, and it is counterintuitive. If we imagine heating a house to be like keeping a bath with a leaky plug hole full, then it stands to rea...
@cookie197 - welcome to the forum. There is a wealth of knowledge here and I am confident others will chip in soon but I can say something about runni...
@derek-m - a succinct, and clear explanation, thank you. I think it is worth noting in your hypothetical but very possibly typical example, the actual...
@iantelescope - can you elaborate a bit? What 'Sharky' did you use, how did you install it, and what actual data did you get, and how did that lead to...
@amanda1 - I regularly bang on about compressorgate, not whether it will happen, but when it will happen. All big manufacturing industries are on the ...
I have to say it is increasingly clear to me that this freeze stat thing is just another pointless manufacturer gimmick that allows them to charge eve...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@jamespa I agree. It's not to say that some people ...
By AndrewJ , 3 minutes ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@jamespa I’m less inclined to believe the shift of taxe...
By Judith , 17 minutes ago
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RE: Do Heat Pumps need to start up at Full Power?
@steelbadger We have an LLH with secondary pump; the se...
By Toodles , 17 minutes ago
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RE: DHW heat loss through pumps.
Exactly. It strikes me that grey water recovery might...
By JamesPa , 42 minutes ago
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RE: Electricity price predictions
We live in a democracy on a crowded island so everyone ...
By JamesPa , 55 minutes ago
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RE: Renewables & Heat Pumps in the News
I bought a handful of system in my last job, commercial...
By JamesPa , 1 hour ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
And the saga continues… So today a Senior Grant Engin...
By Crimson , 16 hours ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
@jamespa Yes, the OAT sensor is situated on the back pa...
By Toodles , 18 hours ago
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RE: Ecodan ASHP Low COP and Unstable Compressor Frequency
Just to clarify, returning water from UFH is colder tha...
By lukewarmbath , 18 hours ago
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RE: 10kw heat pump run in 24*7 data?
A different heat pump (Midea 14kW) but a stark reminder...
By cathodeRay , 18 hours ago
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From what I see, the work to upgrade the cable, etc all...
By Batpred , 19 hours ago
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RE: Confusion over Octopus Tariffs
That's sounds great. I have no ASHP, but 15kwh storage....
By Batpred , 19 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
Locked environments are difficult to manage, it also me...
By Batpred , 19 hours ago
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RE: Has anyone seen this problem before? Huge anticycling times
Hi all, I had a 15kw installed 3 weeks ago. The past we...
By jamesh , 24 hours ago
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Adia Therma - 'autopilot for heat pumps'
Thought I'd pop this one in here as the Adia proposal a...
By seatonian , 2 days ago
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RE: Mitsubishi Ecodan R290 10kW performance
Don't know answer to final question. Your contract p...
By JamesPa , 2 days ago
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RE: New Fogstar 15.5kWh upright solution
Ah, it seems PACE BMS are easy to source on AliExpress,...
By Batpred , 2 days ago
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RE: Vaillant water pressure gauge vs Analogue gauge
@jamespa Agreed I don't feel concerned about this, espe...
By jeegnesh , 2 days ago
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RE: Gov wants to alter our FIT contracts from rpi to cpi
The consultation is just part of the normal process for...
By Jeff , 2 days ago

