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iancalderbank
@iancalderbank
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Noble Member
Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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Reply
RE: Defrost Cycles - How Common Are They?

what do you mean by the "defrost temperature"? I don't quite follow.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

@cathoderay ouch. that high LWT is killing it. I know you've said before that lack of physical space for bigger radiators is a big problem for you. F...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

great if homely gives you the daily COP. its a number worth keeping an eye on. The COP numbers you're getting sound decent to me. I don't know what HP...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump size advice – is 16kW overkill for this property?

@bontwoody one of my "feature requests" for HPM, a way to get from system to person. some want anonymised of course but most are open. however if you ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

@toodles that looks a lot clearer: 0145, 0500, 0745. you even have a brown line called defrost now so thats great - homely must be working that out f...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump size advice – is 16kW overkill for this property?

@bontwoody clearly it doesn't sound like any optimisation , handover or proper control setup has been done. and if its not being monitored nobody will...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump size advice – is 16kW overkill for this property?

@bontwoody holy ***t batman, yes! 16kw unit for a 5.8kw heat loss? even with a bit of growth room for an extension, thats bonkers. I just had a look...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

@toodles hmm still a bit hard to see to be honest. there are periods where the WT's drop right down but the output doesn't go negative, which is puzzl...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

@toodles I would really expect there to be regular defrosts with the conditions we have right now. can you graph "Flow Temperature" and "Return Temper...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Samsung Gen 6 12kW AE120RXYDEG ASHP right for me?

@tobyg undersized doesn't mean hot water not hot enough. not at all . a smaller heat pump just takes longer to heat same amount of water to the same t...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Samsung Gen 6 12kW AE120RXYDEG ASHP right for me?

oh. not good. So "energy with gas isn't the same as energy with heat pump". completely wrong. energy is energy. heat energy is heat energy. They wi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Call for Fair and Legal Heat Pump Installations in the UK

so they are consulting on certain questions, but they aren't actually asking the question that we think they should ask, and the idea is for lots of p...

2 years ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
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