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Replacing my 18 month old Hitachi Yutaki ASHP

 
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Air Source Heat Pumps (ASHPs)
Last Post by JamesPa 9 minutes ago
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 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 3 years ago
Posts: 3634
04/12/2025 10:07 pm  

Posted by: @trebor12345
↑

James.  Yes I have turned off Night Shift.

 

It will be good then to see some plots tomorrow morning to compare! 

I'm beginning to wonder from your description if it's delaying starting defrost a bit too late.  I have no idea why that may be, I don't know how heat pumps decide it's time to defrost.  I guess it's a sensor and of course sensors can get dislodged etc.


This post was modified 6 minutes ago by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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