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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Oct 9, 2026
Topics: 27 / Replies: 5479
Reply
RE: Grant Aerona Short Cycling

Are you certain that the cycling you see at lower temp isnt just defrost? Below 5 defrost would be expected!  

10 months ago
Reply
RE: What a Bad Heat Pump Installation Looks Like

Quite possible no grant involved so none. Putting it inside avoids the need for planning consent, its just like a boiler innit?  

10 months ago
Reply
RE: Struggling to Find a Top Heat Pump Installer? We Can Connect You With the Best Installers in the UK

There seems to be plenty of evidence to support this. My measured loss is consistent with ach of 0.5-1 whereas the mcs calcs default to 2-3. ashp sy...

10 months ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?

yes to both, probably. External controls for ashps (and many modern boilers) are largely superfluous and frequently counterproductive. The possible...

10 months ago
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RE: One Year Review: Grant 13kW ASHP - A Catalogue of Errors

@solenoid it sounds like you are making progress. No need to hurry these things and please feel free to ask any questions.

10 months ago
Reply
RE: How good is the app support for your heat pump?

I think you are right about the ebus stick. It's certainly possible to change at least some of the exposed vaillant parameters through the ha integr...

10 months ago
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

Yes, you can work out a lot from a plot of FT. Interesting that there were both deep and shallow defrosts, for reasons I dont understand.  

10 months ago
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

OK thats a pity it would have been good to see if/how defrost changed as a result of switching off night shift and overnight there would have been ple...

10 months ago
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