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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: May 21, 2025
Profile Activity
Topics: 5 / Replies: 490
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Over 50 trials of setbacks vs continuous operation. Here is a scatter graph of this winter operation of our Ecodan 8.5 to date. The setup is a Ratia...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Slash Your Heat Pump Bills Overnight

Sorry, I have to say this post simply serves to muddy the waters. I agree that the time of use tariffs may produce savings as a tactic. But in no w...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Secondary pump speed - how much slower should it be?

James / Derek. Over the last year or more there has been a lot of debate and speculation about the optimum flow rate for the Ecodan range. Some people...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

@jaket we have decided a bit of cycling (but not too much) when it’s 10 or 12c is better at achieving a high CoP and minimise KWh consumption. The q...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump efficiency v Outside Air Temperature

thanks for your response. It’s not easy to compare like for like installations since anything can be different between personal choices and preferred ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump efficiency v Outside Air Temperature

Very interesting. @mike-patrick Interested in how big your house is since output is bigger than us in our 180 sq mtr house. Also do you have low los...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

Hi @jake. I’ve started getting a bit of cycling since we have had 12c OAT. we get about 2 or 3 cycles an hour. Auto adapt does help a little by reduci...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

I had wondered if you have a list of your radiator sizes and how large your underfloor heating area is since a small emitter capacity can cause cyclin...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

Hi @gary I’ve located a copy of it I think it was published last autumn. LATEST ECODAN DATA BOOK VOL6

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

apologies. I have to make a comment on flow rate. Jake’s HP is a 6kw it is not an 8.5 model and it’s flow rate recommendation is around 11 LPM. I also...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Performance in the current cold snap…

Our CoP took a bit of a caning this month so far. Just when we were trying to retrain Auto Adaptive to its new set of parameters. The attached chart s...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

@hotheat that’s good to hear. So where is your main controller located? Suggestion: Now would be a perfect time to relocate it if it’s in an awkward...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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