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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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RE: Ecodan help with efficiency setup and design

If my understanding is correct, all this information should have been provided in a handover pack along with adequate training. If you did not receive...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay One final question. If your heat pump uses more electrical energy in your predicted none setback scenario, why does it not produce mor...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan help with efficiency setup and design

I suppose the starting point would be to check the heat loss calculation for your home against the required Leaving Water Temperature (LWT) needed to ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay I am not sure what I am supposed to have not corrected. Most of it is raw data, just numbers made available by the Midea wired controlle...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay The spreadsheet predictions only become noticeably low during the setback 'on' periods, suggesting there is something the spreadsheet mo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay I don't actually have a regression theory. I am fully aware that you don't have a regression theory, but since you like to use the wo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay For the umpteenth time, I post my data and ideas so they can be reviewed, successes approved and errors pointed out. If I am not happy w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

I appreciate that you are not happy when someone points out the weakness of your theories, but I don't think that I did so in an abusive manner, and w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay You would appear to be quite good at producing charts using flawed data, and misinterpreting the results. The lower of the two charts,...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Air source heat pumps and noise

Have you considered buying a load of cones and blocking off all the local roads. 😋

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP as preheater for conventional electric boiler

There are hybrid systems with normally a gas boiler along with a heat pump, so I would not see that it would be a problem. Please provide more informa...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP as preheater for conventional electric boiler

I would suggest that you measure the size and type of radiators and check their specified output at a Delta T of 50C. From the total value it should t...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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