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Last seen: Sep 6, 2026
I think it is possible installers may consciously or subconsciously welcome this, because it allows them to over-size on the back of what looks like a...
Here is my data for the last heating season, a simple plot of hourly OAT against energy out (delivered to the house), for all hours in days without a ...
The empirical method is actually quite simple, and it gives you a clear answer, as long as you use data from a period when the indoor air temp (IAT) s...
Fair point. Still a red flag, but there might be reasons why you can put it away.
One problem with the Freedom one is that there are a lot of hidden cells where all sorts of things happen. Un-hiding them is not for the faint-hearted...
This is not uncommon. The Freedom calculator makes all sorts of assumptions, any of which may be wrong. An empirically derived heat loss ie how many k...
Bit of a red flag in my book. OK, £100 off, but only if you sign today...
@starkers - just wondering if you have made any progress in getting at your raw data?
Beware of expectation bias! It may be better to wait and see what actually happens. For example, as documented above, Homely can prioritise making use...
Modbus and RS485 are just parts of the same thing, just two bits of the connection. The Wifi connection is flaky and the Midea App even flakier. Wir...
Thanks for your interest. It hasn't really been tested yet. The recent modification to the code was to deal with a rather specific circumstance, a rap...
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Degrees of Separation
Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
Or where you can fix the pwm% as you can eg with Vaulla...
By JamesPa , 2 minutes ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay and others. I think there may be some con...
By JamesPa , 3 minutes ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 1 day ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 2 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 2 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 2 days ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 2 days ago
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It’s been out a few days and Amazon has already attache...
By Mars , 2 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 4 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 5 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 1 week ago
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