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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Jul 23, 2025
Profile Activity
Topics: 5 / Replies: 496
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RE: Ecodan wont heat with mild outside temps

What’s your UFH construction? This is a suggestion based on what appears to be a restriction of heat transfer capacity of the UFH fabric, particula...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Homely Controller now available for Daikin ASHP’s!

@toodles this sounds really good. Who knows, this might wake up the installer/manufacturer world to its proper responsibilities. Open : Honest : Custo...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Do setbacks save energy without compromising comfort?

I seem to have most of that list but some extra work on existing thermal mass is needed. If I manage to get some energy data sorted I may come back wi...

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

Is there any update on the estimated 5% energy saving on a night time setback? Open query: do night time setbacks tend to happen during the coldest ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

You appear to have a low deltaT on both charts. It looks like a DT of 2.5C on one chart and DT2 on the other. This could be the HP modulating down and...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

Yes it would be nice but I can’t report on COP from the MELCloud app which is all I’ve got. But I think the IAT was written in the post as Room Temp...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

Hi @derek-m and @hotheat So just for fun... during the day I switched to fixed flow rate to see where our cycling would start at Ambient 10C. It’s j...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

In theory energy used shouldn’t be the same since longer operation should be more efficient and less wear on the compressor. What would be really wort...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

@hotheat The answer to your question would almost certainly be provided if you had access to the energy data which is missing. If you had the opportun...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

@hotheat hi, I’ve worked out your T50 heating capacity of your radiators and added the extra rad you’ve had fitted. You have approx 25.3 kWh T50 ca...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

Hi @hotheat, it’s been nearly a year since you started asking questions like the one above. I’ve seen your recent posts and looking at your system you...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pumps don't work: debunking myths & misconceptions

@editor Just some notes and Ideas.... Maybe a bit of easy maths can be interesting to the wider public, as well as educational. example A: Whe...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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