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Last seen: Sep 19, 2024
I fully agree with the assessment by James, home heating is a complex subject. Not because the Physics are particularly difficult, but because of the ...
@cathoderay To be honest I was not going to spend any further time analyzing the data from your system, but your comments about your particularly ba...
I would suggest repeating the test with a more reliable method of measuring the temperature, since if the readings were taken at 20 second intervals, ...
Yes, you are correct. Whilst it is not what I believe happens in the real World, in CathodeRay's system he already has his version of AA mode varying ...
CathodeRay's data provides the OAT and the IAT at hourly intervals. The model needs to adjust the energy output to represent what the heat pump contro...
James, I think that you pointed out some time ago that it is the heat emitters, along with the heat loss, that dictate the required thermal energy out...
Hi James. The raw data is the hourly records provided by CathodeRay recently, I think that you have been working with a copy. I took the data on f...
You are perfectly correct, it does not matter. Well not to me, anyway.
@cathoderay But what happens if the OAT reading varies from 0C to 3C deviation with heat pump loading?
@jamespa Attached is a copy of the test results from the raw data for the period 5th November 2023 to 20th November 2023. I don't see any point in...
@cathoderay I don't follow your logic. You expect to use the OAT reading to predict the Energy In to your heat pump, but this OAT reading would appe...
@jamespa I suspect that some of the wider variation in OAT during the setback data, is probably due to the heat pump being stopped for a lengthy per...
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Degrees of Separation
Latest Posts
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@penval, really useful update. After all the discussion...
By Mars , 3 hours ago
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@papahuhu I prefer to look at it simplistically. We d...
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
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@Mars Good questions! The downstairs unit did the maj...
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RE: Heat Geek mini store vs pump size
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@tomtheheatingengineer, thank you, and welcome to the f...
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