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Last seen: Aug 25, 2026
I dont think this is quite right. It is definitely useful to put numbers in, but you have also think about what drives what. In heating, the driving...
All of which is very fair. Im not trying to persuade anyone on this particular matter, just identifying (as much for me as for anyone else) the trade...
I think you are right, there may be, in principle, a small capacity hit either at the heat pump level or because of the max speed through the pipework...
OK at this point I need to post a health warning - I'm not a heat pump expert, I'm just an enthusiastic amateur with a physics degree from 40 years ag...
I don't see why it has to work harder. The energy transferred from house to outside is unaffected by the flow liquid. The energy transferred from r...
or, more to the point, what maintenance is it possible to do to a 50l tank? Check the connections aren't leaking I suppose!
The change is specific heat capacity shouldn't directly affect the performance of the HP. It simply means that the fluid has to flow about 10% faster...
Ok that's good. So you could: Switch the volumiser out of circuit using the valve you mentioned earlier. Take the heads only off about h...
Sorry I don't know definitively the answer to that question. Having said that I think its much, much more likely that the 'black ink' and 'iron part...
No, pipe flushing is not part of the annual service. So far as I know the annual uvc cylinder 'service' is just an inspection and partial test of th...
Defo give Octopus a go but they might not touch your house at present if it doesn't fit their 'model'. I think they are trying to perfect some process...
I can say with absolute confidence that you are correct. The house must lose more energy and thus must be supplied with more energy if it is hotter. ...
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Degrees of Separation
Latest Posts
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RE: How Accurate Is My DIY Heat Loss Calculation?
Any idea how efficient your gas boiler is? Is it a 50 y...
By Old_Scientist , 4 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
There is scope for product development here. I for one...
By JamesPa , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 6 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 6 days ago
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