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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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Reply
RE: Two possible heat pump routes - how to evaluate them?

@lucia With regard to the bucket analogy, think of your home as a bucket with lots of pin holes covering the whole bucket, with the bucket placed in...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: HP Cycling, Expected or Undesirable

@johnmo You are perfectly correct that what I have previously described as the upper 'switch off' limit and the lower 'switch on' limit can indeed a...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: HP Cycling, Expected or Undesirable

@bontwoody Thank you.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: HP Cycling, Expected or Undesirable

I would be interested to see the results.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

This is what is so annoying about the present society in which we live, in that one cannot always trust people to do what you have paid them to do.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: HP Cycling, Expected or Undesirable

I would agree that increasing the LWT is likely to reduce the instantaneous COP value when the heat pump is operating in continuous mode, but it may ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

@lucia The better option would be to get the cavity filled correctly.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: HP Cycling, Expected or Undesirable

One way to try to reduce cycling frequency would be to raise the Leaving Water Temperature (LWT) by means of the Weather Compensation (WC) offset. Thi...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

@toodles Page 20 of the attached manual provides a detailed breakdown of the model number.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

Most heat pumps will cycle when the OAT is 10ºC or above, the frequency is cycling may be dependent upon quite a number of parameters. If I have tim...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

Does the attached manual cover the model in question?

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

I think the best that can be obtained from assessment is the approximate heat loss, since the actual heat loss will vary with changing weather conditi...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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