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Sorry, my mistake. Totally messed up the first message. The machine is a 4.6kW heat output. It has a COP efficiency of 3 and the input power is shown as 1.5kW on the rating plate. I am basing my figure of 3.0kW on it only drawing around 1.0kW when running. Using the COP figure I have calculated...

I have just bought a portable air conditioner with heat pump. It is a 4.6kW machine but never draws any more than 3.0kW no matter what the settings are. The supplier tells me this is normal and it will only draw the full load when the conditions are right. I think that setting the machine to 31...