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JamesPa
JamesPa
@jamespa
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Joined: Apr 3, 2023
Last seen: Jun 10, 2026
Topics: 25 / Replies: 4955
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RE: Maximising Home Automation: Integrating Octopus Energy & More

Ah, this is a bit of a mess. The interface from the smart meter to HA depends on the HID (home interface device - the little display you get). Some ...

7 months ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

The Samsung app is pretty user friendly, but has some limitations in its capabilities unfortunately. At installer show the Samsung rep proudly showed...

7 months ago
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RE: Mixture of copper and plastic CH pipework. Will it be ok, or need changing?

In principle yes. Some heat pumps (I think including Daikin) appear to modulate the water pump to achieve a quasi fixed DT. So if you set it at 6 fo...

7 months ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

That all sounds promising, the right people, who hopefully understand what they are looking at, are finally on the case. Just one thought, if you are...

7 months ago
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RE: Mixture of copper and plastic CH pipework. Will it be ok, or need changing?

According to the Heat Geek cheat pipe sizing sheet (which seems to have disappeared form the heat geek site but is reproduced here 22mm copper is good...

7 months ago
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RE: Extend the colder range of the weather compensation curve?

No issues at all in extending it so far as I can see, certainly until the point where you are asking it to exceed it's max flow temperature Obvio...

7 months ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

So here is the basic spec sheet showing SCOPs. In an 'average climate' - is I think an EU definition) SCOP is quoted at 3.39 at 55FT and 4.72 @ 35FT....

7 months ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@mairia Whist we wait for it to get cold, if you would like to post the exact model number of your heat pump and whether it is R32 or R290, I will tr...

7 months ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

Well spotted. However if there isnt a secondary water pump, which OP seems to believe there is not, there can be no buffer - or at least not one of t...

7 months ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

OK that shows its working as programmed so nothing broken or misconfigured. Of course 'correct' is an interesting term which can mean either 'corre...

7 months ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

Thanks for the additional info I wouldnt worry about a couple of degrees. If DHW is heating you would expect LWT to be higher than normal which ...

7 months ago
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RE: Daikin Wireless Thermostat

If you do go for pure WC you may need to adjust the WC curve down (which will anyway improve efficiency) and possibly balance emitters. Feel free to ...

7 months ago
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