Last seen: Sep 19, 2024
It seems I am not making my thinking clear enough. Firstly, the high 2 squared value (93%) for the regression means that, regardless of causality, and...
@cathoderay I would assume that the data within the manufacturers data tables was obtained using more precise, and correctly calibrated, test equipm...
Since the website host started 'improving' performance, it is now decidedly worse. Would you please ask them to get their act together, or hire someon...
@kev-m Hi Kev, I have not forgotten, just been rather busy.
To be a little more systematic, I think the noise measurements should, if possible, to taken at a fixed distance, and possibly specified locations, in...
What I find rather difficult to understand is the need for a 1.18 correction factor. Why would a heat pump manufacturer, even a Chinese one, spend t...
A heat pump uses the 'phase change' of a refrigerant gas to absorb thermal energy from the outside air, and then uses this thermal energy to heat the ...
The heat pump is defrosting, which is easy to tell since the Leaving Water Temperature falls below the Return Water temperature.
From what I can see the heat loss calculation fails to take account of the home being 'infested with humans', who probably produce (along with their v...
Temperature sensors are not like humans and are not affected by a draft, but they do respond to changes in temperature. The change in OAT in the upp...
Have you considered lowering the LWT, or using WC?
Looking at the upper chart, it would appear the the OAT sensor is being affected by the operation of the heat pump, so the controller will probably be...
Latest Posts
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Is there any update on this system? How's it running no...
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@drei in your original post, you said: Did the Heat ...
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RE: Do I just go with the lowest quote for my heat pump?
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@judith Applied for replacement from installer. If...
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RE: Preparing for 2nd winter in new build house.
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