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Last seen: Aug 19, 2026
Although i agree that the evidence that oversizing causes performance problems is at best shaky (albeit there are some logical arguments why it might)...
Well that's not really a reason. If he had said "because the index circuit has a resistance that is too high for the water pump" that would be a rea...
A buffer tank will be a cylindrical tank other than your DHW tank, or could be attached to your DHW tank.
It's unlikely you need 2 pumps, did he say why?
In that case Id perhaps expect your loss to be less. Do you have a buffer tank and if so how many ports (usually 2 or 4). How are the upstairs radia...
Difficult to say without more information about the house however, for comparison, my 200sq m 1930s house with a mish mash of fabric upgrades (includi...
Quite possibly. As I mentioned above the 'ideal' product seems only to be available in the EU. There is a UK product which looks like grass, (and th...
In general lower FT = higher efficiency. These are only 1C apart however and with different outdoor temps, but perhaps more importantly both have ...
Consumption is not that much different to mine when it was very cold. You wont be getting a COP of 4 when its -3~-5 outside, more like 3 or possibly ...
The bodies of TRVs usually have an arrow on them. If it can operate bidirectionally it will be a bidirectional arrow!
Thanks for the suggestion. This appears to have a solid shiny surface and be designed to reduce transmission. I think what I need to do in my s...
My 7kW Arotherm does the same. Its especially noticeable during recovery from defrost, when the compressor is going at 100%, and at this point its ha...
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Degrees of Separation
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Readers here please note that Derril Water and many oth...
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