Plenty of heat left, you've got another 270 degrees (C or K) before you get to absolute zero!
As long as the boiling point of the refrigerant is below the ambient temperature the ASHP can pump heat (although they start to freeze on the outside of the coils, so have to run a defrost cycle). A freezer works with an in internal temp of -20C and a condenser temperature on the back of about 30-40C - it's the same process.
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