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Struggling to get CoP above 3 with 6 kw Ecodan ASHP

 
Air Source Heat Pumps (ASHPs)
Last Post by GoodbyeGas 2 hours ago
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 GoodbyeGas
(@goodbyegas)
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Topic starter 20/02/2026 10:20 am  

I've been using this heatpump for two winters now and am usually happy with it but am annoyed by the low CoP and it seems like whatever setting I use, it does not get better.
In the screenshots it runs on the heat curve setting (-1 because it ran too hot for my liking). The auto-adaptation setting often is around 1.7 CoP and the current ones somewhere between 2 and 2.5.
I was wondering if there is anything obvious in how it runs, that might make it less efficient? I seems like the heatpump turning on and off rather than constantly running at a lower frequency is not ideal. From the few Melpump screenshots I've seen on here, this is not usually the case.

Any ideas?
The detailed report in the lower figure is from the 10th Feb. It seemed like an average enough day for an example.

Melpump Energy Report

 

Melpump Detailed Report 10th Feb


   
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