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Last seen: May 17, 2026
I too agree with what you say, and am grateful to you for looking into it. Fair enough! I sometimes do the same thing include something not aimed...
@jamespa — thanks. No rush, I posted a bit too hastily earlier and need to correct the plot once I realised it was not correct! This may also be a r...
I can get both the fitted values, which are row specific ie depend on the OAT (ambient) value for that row, so in effect they are random, or the regre...
Short of watermarking every post and every chart with 'N=1' there isn't much more I can do than I already have done, point out regularly that this is ...
Nonetheless, useful commentary in that it tells us 'smart' meters are not so much about letting consumers know much about their consumption — wasn't t...
@transparent may have something useful to add here, he knows a lot about smart meters. My initial thought is do you actually need this level of ...
@ian33a — I have a sort of residual interest in this problem as I used to have an oil tank (and boiler) and I remember how vague my usage measurements...
I agree, and that is in effect what @jamespa and I have been doing! That's for the link and it seems I have been teaching grandmothers to suck eg...
@ian33a — a measured heat loss always trumps a calculated (whatiffery spreadsheet) heat loss, providing certain requirements are met. Firstly, the I...
Yes, see below. They are just standard regression lines, just as in any spreadsheet, but in R you have more control and more options, but as I have sa...
Using past oil usage to estimate heat loss is tricky. Firstly it is very unusual to have accurate interval usage. You fills your tank and runs your ...
@jamespa — this version may be marginally better:
Latest Posts
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RE: Advice on Vaillant Sensocomfort
@jamespa Thanks, that’s useful. It also seems the ...
By Batpred , 2 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 8 hours ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 8 hours ago
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UK warm homes plan - how can it be delivered?
@editor Sobering thoughts on your article on the workfo...
By Batpred , 10 hours ago
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RE: Setback savings - fact or fiction?
You are right to be intrigued by it IMHO. SOFAIK it is...
By JamesPa , 16 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils there is no logic to oversizing a heat pump. It...
By AgentGeorge , 19 hours ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 1 day ago
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
By Mars , 1 day ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 days ago
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RE: Sizing an ASHP; Heat loss and kW
You can't measure heat loss with a website. But you ca...
By JamesPa , 2 days ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 2 days ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 2 days ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 3 days ago
