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SUNandAIR
SUNandAIR
@sunandair
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Honorable Member
Joined: Dec 30, 2022
Last seen: Mar 14, 2026
Profile Activity
Topics: 5 / Replies: 563
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Reply
RE: Setback savings - fact or fiction?

@technogeekk there are other strategies for saving money open to your kind of setup based on the kit and property you have listed. And I’m guessing yo...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

So, as James suggests in a thread above. You can’t make a universal statement about a heat pump performance if it only applies to a specific system. T...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

    Are you sure About that, @robs because that’s what I was saying earlier. Here is a post I made

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

  Hi @robs. Your summary of defrost is missing and/or misplacing the full defrost ELECTRICAL energy, mainly because the real defrost period is ...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

    I will reply to your other comments later but just to answer your first point….In your summary did you not say: “But the system...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Rob I posted this question in full knowledge of your energy flows summary with 11 minute data charts. I was asking for more information. The problem I...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Hi I’ve reposted the two contrasting defrosts from the above post and re labelled them so the contrasting defrost periods can be compared. They are de...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Hi @robs Can I ask you to explain what you see as the energy attributable to the defrost and defrost Recovery. To my mind there are some energy act...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@jamespa yes I see what you mean. I think what was on my mind is how to read the impact of the eventual drop in return temperature water. What I’ve n...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

I see things have moved on, all of a sudden and Rob has introduced interesting variants of defrosts across various brands. im glad the topic of lag ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Interesting, I have highlighted the possibility of hidden energy that may not be accounted for during recovery, as listed, including contained in th...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay I kind of guessed you might come back with the data validation route. The problem with that route is that it is only as good as the under...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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