Last seen: Oct 7, 2025
@cathoderay I did some maths over my lunchbreak and I think I've got an explanation for why there is a polynomial in the relationship. I think it is...
I also found other forms of the curve that better fit the data when doing my EDA, many of which confused the hell out of me, including the polynomial ...
@cathoderay I've made a few modifications having looked through your posts. First, the problem with applying the "no setback" model to the "yes setb...
So I did a quick model in R on the hourly data, and I found that the setback period used 1% less electricity than the model suggests would have been u...
This is absolutely the right question to ask, and then to follow up - so what should your should your strategy be for raising and lowering the set tem...
You could try increasing the tank target temperature so that, even if it's 3C below and doesn't trigger, it's still hot enough for long enough to supp...
I'm on Intelligent rather than Cosy, but I have automated my heat pump to boost the flow temp by 5C during the cheap period. I don't think it's game c...
It's also 2.4kWh extra heat generated in your home (assuming the circulating pumps are inside the thermal envelope of your home).
If we're getting R-squareds of 0.9 with just the OAT vs energy consumed, then we're probably not going to be able to discern a 5-10% difference in ene...
This was my experience too, and our installers removed the FTC6 and replaced it with an FTC5. Otherwise, I believe, you have to invest in the dedicate...
@jamespa I think it is better to measure energy consumed of course, but then you also need to take into account things like Time of Use tariffs. For e...
There's really no meaningful difference between those two lines at all. People can set their setbacks if they want and not worry about it, or people c...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@kevh with the Cosy 6 I know it definitely goes to arou...
By HarrisonC , 8 hours ago
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RE: Setback savings - fact or fiction?
@cathoderay yes I am familiar with SQL. Interesting num...
By RobS , 9 hours ago
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Parsnip, Bacon & Coconut Milk Soup
First let me say, I am only a cook because I am human a...
By Toodles , 9 hours ago
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RE: Controlling Daikin Altherma via P1P2 and Home Assistant
@weoleyric Oh Dear, I don’t think I am going to be of m...
By Toodles , 9 hours ago
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RE: Electricity price predictions
Ben Watts posted on LinkedIn that he had updated this w...
By Judith , 15 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
Small update, Emailed and Spoke to Midea UK and they ...
By Burtis , 15 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@bash Octopus does charge for the admin. The process al...
By Batpred , 15 hours ago
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RE: External pipework insulation
@transparent HI all The products you mention are ver...
By David Smith , 15 hours ago
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RE: New Fogstar 15.5kWh upright solution
Issues still under investigation by Solis... Fogstar ...
By Batpred , 15 hours ago
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RE: Who's your electricity provider and what's your tariff?
I agree, the consumer is not being properly represented...
By Batpred , 15 hours ago
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RE: Advice on internal circulation pump noise
Thanks @mikefl - I'll maybe have a look at the lock-shi...
By jtg , 1 day ago
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RE: Heat Pump Heats the House… But It’s Not Cosy. Emitter Changes or System Tweak?
@toodles interesting suggestion, thanks. I will try to...
By GrahamF , 1 day ago
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RE: Mitsubishi Ecodan Auto Adaption trial to stop cycling.
The interval you talk of, i think, will be 60min for an...
By F1p , 2 days ago
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Agree with @majordennisbloodnok on the setbacks. We hav...
By ChandyKris , 2 days ago
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RE: Speedcomfort radiator fans
@deltona the way the links were added broke the page. A...
By Mars , 2 days ago
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RE: Refrigerant R32, is it now banned in the EU from 1st Jan 2027 for monobloc ASHPs?
This has been delayed from what I believe to be this ye...
By dgclimatecontrol , 3 days ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
this is why I provided current flow temperatures in the...
By ksim , 3 days ago
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RE: Why Millions of UK Homes Struggle With Heat Pumps
There's many homes that would be quite a disruption for...
By dgclimatecontrol , 3 days ago
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RE: Ecodan unable to hit legionella target temp - what's the consensus?
@rhh2348 ...maybe this option is what you want? Alter...
By benson , 3 days ago

