Last seen: Dec 13, 2025
Good old physics tells us that it is impossible to not have to put extra energy in to get the temperature up without putting extra energy in. I havent...
@cathoderay the principle is as probably described somewhere above, that the energy usage is directly proportional to the deltaT between outside and i...
interestingly that’s not what I see, here is the same from my calculations on your data, there is clearly extra energy being put in:
@cathoderay i’m getting different results, using this method: calculate the average kWh/inside outside deltaT Kelvin (sum(kWh in)/sum(deltaT), that ...
As I understand it, it depends where the gauges are relative to the pump and blockage. The gauge in the heat pump is before the pump, so where it is l...
I think that might be an indication of some blockage in the system. I had that difference and lower than the standard vaillant 14 l/min flow rate, unt...
I’m very interested in these for my dad who lives in Germany. They have updated the regs such that you now can attach 200wp of panels, I.e. four panel...
One thought is that the advantage of an oversized system is that the radiators are hopefully also oversized, so you can run it at a lower temperature....
Looks like you can get the go (non intelligent) without an ev, just don’t ask :). I pressed the button and got the email to agree the conditions. If I...
I’m with octopus cozy, with my battery size it means that all by usage comes from the three cheap periods. I’m looking to switch to go in April, as t...
@terry1812 sorry didn’t mean to offend. That’s lucky their policy did overlap with your requirement. For me there was no need for repipe (22 & 15m...
@terry1812 oh I dodged a bullet there! I had the BG surveyor come round and I started with saying that their policy is to replace all piping! I send ...
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@mars I think your commentary is very fair and balanc...
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RE: External pipework insulation
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RE: Advice on internal circulation pump noise
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RE: Heat Pump Heats the House… But It’s Not Cosy. Emitter Changes or System Tweak?
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