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Last seen: Sep 19, 2024
If you would care to provide the minute by minute raw data for last nights chart, I will run it through the Modeling Tool as see if it predicts that c...
@cathoderay I would state that last nights cycling was due to the weather being milder, hence the heat demand was below the minimum output of the he...
@cathoderay What was the operating mode of the heat pump?
I will make one final attempt. But your heat pump controller does know the true OAT shortly after it has stopped running, the problem being that it ...
It means that I don't have a problem if you wish to keep going round in circles.
The WC curve needs to match the heat loss of your home. What is the heat loss calculation? When heating the hot water cylinder, the heat pump increa...
@cathoderay No problem.
What are the settings of the Weather Compensation (WC) curve?
Okay, time to go back to basics. What is the size and type of your home? What is the heat loss calculation for your home? What is the output capacit...
That is the reason why I suggested putting the system in fixed LWT mode for a period of time, it is similar to putting an auto control system into man...
@cathoderay What is the 'source' of the Set LWT reading? Is it read from the Midea controller? I wonder if the controller waits until the LWT has ...
So you are the culprit behind NG (or whatever they are called, or going to be called) having to carryout such excessive upgrades. 😋
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Not a problem; that’s why I left it as it was. The pers...
By Majordennisbloodnok , 4 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 13 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 day ago
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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...
By Old_Scientist , 2 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 2 days ago
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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 ...
By JamesPa , 2 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days ago
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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...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days 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 , 4 days 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 , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 5 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 , 5 days ago
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