Hi, F Lez

< I have a refrigerator, and only a month ago I was discussing with the wife about moving it from out the kitchen into the back yard so its no longer working like an indoor heat pump >

Sorry, but it is really a false assertion ...

The heat you pump in the room ( entering the fridge ) ... you bring it to the backside of the fridge ... so, IN THE ROOM !!! , just adding the compressor running electric energy.

Globally ... you heat your room !!!

So, ... a split system is the solution for summer, and a conventional one for the winter .

Alain