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RobS
@robs
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Estimable Member
Joined: Oct 15, 2024
Last seen: Mar 5, 2026
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Topics: 0 / Replies: 110
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Reply
RE: Setback savings - fact or fiction?

Great, so you have proven that MELCloud is consistently inaccurate! That doesn't prove in anyway that the estimated values from MELCloud are accurate,...

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

Panic? Seriously? Wanting people to have accurate information isn't panicking.   Why? Nothing that I've said Mitsubishi don't already know...

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

Accuracy of the data is no concern of yours? So you are happy to spread your opinion based on nothing but wishful thinking? There is no panic, just ...

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

Why when the software system that you are using is so inaccurate? And because of this inaccuracy you can't possibly answer that question.   ...

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

Both @cathoderay and I have posted data on defrosts, both show no or limited extra electrical energy used by a defrost. And @cathoderay's flow tempera...

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

🙂 I wasn't suggesting the Romans had a complete model but two millennia ago they could heat a building to three different temperatures with some cons...

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

@cathoderay - thanks for an interesting discussion! The heating/building industry doesn't but science/engineering isn't so limited. Modelling heat t...

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

It's close enough to steady (+/- 35W) to get reasonably accurate steady state values, that can then be used to calculate what happens if something hap...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our Experience installing a heat pump into a Grade 2 Listed stone house

@travellingwave Ah yes, that would explain it.  

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Our Experience installing a heat pump into a Grade 2 Listed stone house

@travellingwave A straight line like that in recorded data could be from a sensor problem, maybe OAT? Yes, the other points are suggesting 8-8.5kW ...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our Experience installing a heat pump into a Grade 2 Listed stone house

@travellingwave You don't need to record IAT to use the tool, if your IAT is usually 20C then as the tool defaults to 20C you shouldn't need to cha...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our Experience installing a heat pump into a Grade 2 Listed stone house

Hi @travellingwave If your system is on heatpumpmonitor.org then a chart similar to what @cathoderay is suggesting is already available. If you go ...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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