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Last seen: Aug 13, 2026
Interesting, I have highlighted the possibility of hidden energy that may not be accounted for during recovery, as listed, including contained in th...
@cathoderay I kind of guessed you might come back with the data validation route. The problem with that route is that it is only as good as the under...
It looks like there’s some good discussions on applying insulation which can’t be a bad thing @majordennisbloodnok and @cathoderay. Regarding out top...
Hi @majordennisbloodnok, I don’t think I have a different view than yours here. Im very passionate about listed buildings. I’m just pointing out that ...
@cathoderay yes I agree, listed buildings may present challenges depending on what is a particular listed feature. Importantly, of course, it’s also t...
@old_scientist that’s quite an interesting story and I agree there are some serious issues when the insulation is installed incorrectly. And possib...
In my opinion insulated walls are not a “nice to have” option, rather it is necessity. Insulation of older housing stock must be seen as an absolute...
Here is that Samsung link posted by @old_scientist
Thanks @cathoderay, I did read it earlier when it was posted. I wouldn’t pretend to have understood most of it but there were a few good bits of infor...
Hi Mike. I think you make a valid point. I would assume the post defrost algorithms are part of a pre determined reheat to provide some additional he...
Nice re-focus but somehow Im not sure the defrost ‘setback’ saves energy it does after all put negative energy into the building for at least one who...
@robs Your Heat Pump setup is quite exceptional. I can clearly see your heat pump is delivering the heat you require at a flow temperature of 29c when...
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Latest Posts
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RE: Adding additional Solar Panels to a DC coupled battery system
Let's deal with mounting systems first. You don't hav...
By Transparent , 1 hour ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 19 hours ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 23 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 2 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 2 days ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 4 days ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 5 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 5 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 5 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 5 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 6 days ago


