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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...
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Degrees of Separation
Latest Posts
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RE: Buffer tank on a 2 x 14kw Ecodan system
@fosterl2, ah, that changes the picture somewhat. I’d a...
By Mars , 8 hours ago
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Well you have a vibration generator running at some fre...
By bobflux , 11 hours ago
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RE: Why don't people choose heat pumps?
@susannasaunders The link I have found may provide a li...
By Toodles , 13 hours ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
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Six books in three years and I think I’ve now covered j...
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RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
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