"Walter R." wrote in message
However, shading a condenser is a totally different story. The cooling
efficiency of the condenser is solely dependent on the temperature of the
ambient air that is used to carry-off the heat generated by the condenser.
A lot of air is pushed through the condenser fins and shading the
condenser has no effect on the temperature of this cooling air. Just
common sense.

Save your money.


Did the laws of physics change?

Your conclusion that it does not save much may be correct, but your
reasoning is incorrect. The sun will cause the condenser and any exposed
fins to pick up some heat. The sun has been doing that for many years now.
The only question is how much heat is gained and how much can be saved by
shading and is there a payback. .