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Gary
@gary
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Joined: Feb 8, 2023
Last seen: Aug 13, 2025
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Topics: 2 / Replies: 348
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RE: Ecodan ASHP - How to optimise my set up?

@jaket yes curve too low there are plus and minus symbols on the front screen turn it up a few degrees you don’t need to adjust the whole curve this w...

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

@jaket If you have all the circuits in the house calling for heat then unfortunately the heat pump can’t modulate down any further so it has to start ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 11.2kW with low 5 litre per minute flow rate leading to L9 error

@paulrlondon fyi flow rate range for the 11.2kw unit is 14.4-32.1L/min

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

@jaket I would increase the tank temp you are heating to, 45C is too low if your showers getting cold after a few mins

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

@jaket yes leave at 5 19 litres per min is fine mine runs at a similar rate

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

Here is my flow for an hour yesterday afternoon it ran like this all day. just noticed you posted flow rate was that from the running information me...

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

@jaket Hi I have an ecodan with ufh and rads and Heatmisers. You can get it working well. It will just take some tweaking. What you will probably ...

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

180sqm detached house built in 2000 so insulation isn't bad but isn't great either, 8.5KW Ecodan, UHF downstairs retrofitted so little thermal mass, R...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson with the flow and return temps you are getting they are very wide DT13, this suggests not enough flow rate in the heat pump circuit is there ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson Ignore my previous post not enough caffeine. DT20 is possible but your heat pump is going to be running at a relatively high temperature so...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I'm no expert but I think you are using the correction factors incorrectly, your rads can't output more heat at a lower DT, so even if you do have a d...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

@dannymoss23 Do you have a Mitsubishi preplumbed cylinder, if you do and you have have already stated you have 2 zones, 1 for UFH and 1 for rad...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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