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Last seen: Aug 24, 2026
Do you know it isnt matching demand, so far as I can see your IAT is staying constant which suggests it is. Edit - Oh - I see what you mean, can...
If the house is warm then its spending its time at min capacity because that's all the energy you need to keep LWT within the set bounds. Sure, cycl...
I completely agree with the last sentence, and have said so on this thread, but... (Almost) without doubt there are circumstances where setback saves ...
In short, the RWT. The emitter loss determines how much the water temperature falls during its passage through the emitters. The heat pump will (or ...
The demand, which is set by the emitters. The heat pump is a slave to the house, not the other way round!
Well for certain not running 24 hrs can be more expensive: Consider a house with very high thermal mass, so high that it barely responds to setbacks...
I have always assumed that they modulate continuously between max and min. Obviously you can only provide the engineering data at a limited number of...
Id be a bit careful with the interpretation of this. If the house only cools by 1C peak (ie an average of 0.5C) for 12 hrs when it's 0 outside then a...
There is a bit more of a quote from the report and its author here The Daily Mail and the Telegraph seem to be responsible for some of the report...
Sorry but that's a bit meaningless as a statement. Too loud in what circumstances? Clearly there are circumstances where they are not too loud eg my...
Very easily. 1m from the boundary is not the same as 1m from an assessment point. The heat pump could be 20m down the garden and right on the bounda...
There are arguments both ways on this and each has its following. Glycol has a higher viscosity and a lower heat capacity than water so may slightly ...
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Latest Posts
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
Volumisers are normally plumbed so that they are in the...
By JamesPa , 5 hours ago
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@toodles possibly. The £9k labour charge for 4-5 days w...
By AndrewJ , 10 hours ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 14 hours ago
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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 , 1 day 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 , 1 day ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 1 day ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 1 day 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 , 2 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 , 5 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 , 5 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 , 5 days ago



