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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Sep 17, 2025
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Topics: 17 / Replies: 2149
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RE: Simulation of ASHP with Gas boiler as part of decision process

I do agree, it is a minefield, however, consider the logic of my approach which only needs a steady IAT (if that isn't the case, all bets are off) and...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump monitoring - what are you using?

One of the major problems with these types of online projects is that they get hugely over-complicated, making it often impossible for us mere mortals...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

I have three sources for energy in, and they all only cover the heat pump: (1) Midea keep a tally of lifetime energy in (like the lifetime energy ou...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump monitoring - what are you using?

Given willingness to learn, and assuming basic literacy, numeracy and ability to think logically, don't be afraid to look at python. It is a fairly hi...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

Most of your questions have been answered elsewhere, but far easier and more compact to repeat the answers here rather than trawl though past posts. N...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

I agree. I've found the thread - appropriately enough called 'A conundrum...' - where I raised this question before. It may have been before you joine...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

Will give an answer tomorrow, probably not very detailed, as my time using oil for CH is but a dim glow in the far distance that gets smaller with eve...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

As I said in the original post that had the chart, it came from the setback discussion thread, and if you look at the title of the chart, it is data f...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

Hopefully my immediate past post has clarified things. The previous discussion started if I recall correctly precisely because there was a discrepancy...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

We discussed this at length before, some time ago, and something has changed: the way I heat my house, going from timed oil CH to mostly (sometimes I ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

I'm actually doing better than that. The chart has thousands of data points, and the ('trend') line in effect averages/summarises all those data point...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

@jamespa - @jamespa - you are still avoiding my question! Is it not the case that the divide by 2000 rough rule of thumb can give very misleading resu...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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