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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Jun 10, 2026
Topics: 25 / Replies: 4955
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RE: Daikin Short Cycle Query

I would say yes. Have you got a buffer/LLH and secondary pump. How is is set up (thermostat? Weather compensation?). Are your emitters completely o...

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

You are doing a splendid job of cornering the installers, well done.   I have a couple of comments which may or may not help Just to ad...

7 months ago
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RE: Is Your House Warmer Upstairs Than Downstairs?

Why arent you expecting them to make much difference. If the water flow is shut off completely they wont heat at all, and in principle the flow could...

7 months ago
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RE: Request for feedback on where we're at with our quest to get an ASHP or ideas.

Im assuming the m^2 refers to the outside the area of the house not the floor area, otherwise the calculation appears wrong. 7.46 ACH is really high ...

7 months ago
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RE: Request for feedback on where we're at with our quest to get an ASHP or ideas.

Ok. It still seems high tbh. Particularly if you do anything to improve the floors. My 200sq m house of similar basic construction with no floor ins...

7 months ago
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RE: Request for feedback on where we're at with our quest to get an ASHP or ideas.

Are you going to insulate those solid walls and the loft at all If so this figure is crazily high and a design based on it will likely perform rather...

7 months ago
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RE: Is Your House Warmer Upstairs Than Downstairs?

Fwiw I ried smart trvs with my gas heating. I found it too much faff to use the smart features so reverted to dumb trvs and subsequently, when I got ...

7 months ago
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RE: Is Your House Warmer Upstairs Than Downstairs?

Until I turned down the lsvs upstairs, yes. No real need to buy frvs, lsvs, or trvs fitted with decorator caps to replace the heads, will do the same...

7 months ago
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RE: balancing radiators with a mixture of different size pipework and a few undersize rads.

In short yes. Balancing so that delta t across the rad is equal will theoretically achieve this, but of course that depends on the design and loss ...

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

Definitely worth getting numbers. It's generally differences that matter so a cheap amazon probe is fine as long as you use tge same one consistently...

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

I think it's unlikely it will make things worse. The pump issue is yet another example where a buffer not only degrades performance but also obscure...

7 months ago
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