If you are in Germany or the UK, you would expect a COP of around 4 from a serious system. Or at least, COP4 is what we expect in the Netherlands, and the clima

If you are in Germany or the UK, you would expect a COP of around 4 from a serious system. Or at least, COP4 is what we expect in the Netherlands, and the climate is not that different. COP 2.5 is a sign of a poor setup.