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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Aug 29, 2025
Topics: 17 / Replies: 2079
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RE: Simulation of ASHP with Gas boiler as part of decision process

@toodles - we are, but back to basic principles: if two independent data sources agree, or are close, then that does generally suggest that both are a...

11 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

I don't think, for my system, it is too bad, because I have some basic independent monitoring tools, and they broadly agree with the Midea data collec...

11 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

That is certainly possible for the pipework, though the radiators are matched, plus a bit, to the 12kW heat loss, ie they are unlikely to be a bottlen...

11 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

Unless it happens either (a) when you are asleep or (b) when you are out! Also bear in mind we only have to account for very roughly a doubling of the...

11 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

I think that is very likely, but I didn't notice either because it happened overnight, or during the day when I was out or active. The other thing is ...

11 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

Me too. The only explanation I can come up with is that I fine tuned the timing so that I only heated the house when necessary, morning and evening. P...

11 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

@jamespa - an update on historical oil use. I was going through some old papers recently and came across delivery slips and invoices for oil deliverie...

11 months ago
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RE: The good, the bad and the not that great – my heat pump installation

I and some other Midea heat pump owners came up against this a while back. The problem is almost certainly rounding errors, as all the values are inte...

11 months ago
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RE: How to Solve Mould and Mildew Issues in Renovated Properties

Indeed, and it is a complex area. My primary observation (I have an old leaky grade II listed building) is that installing a heat pump appears to have...

11 months ago
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RE: Midea ASHP – how to set weather compensation

@mphb - thanks, a useful link. Using google translate, I found the post contains this: "There are 8 heating curves pre-programmed, with "1" being th...

11 months ago
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RE: Midea ASHP – how to set weather compensation

That is exactly what weather compensation is, and it is what you want. One zone, no TRVs (with very rare exceptions) and weather compensation. Strictl...

11 months ago
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RE: Midea ASHP – how to set weather compensation

@iwolf - I have a very similar if not the same heat pump. Yours has a suffix, perhaps that means it is the German model. I don't speak German I'm afra...

11 months ago
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