Why should you only have one big heat pump that costs a lot of money. What if the people behind the Coolala SolarPowered Portable Air Conditioner made a similar heat pump. I think its based on the same principle. Only in reverse. Remove the heat from the outer air and heat the home with it.
I wonder if portable heatpumps could work for Tiny Houses. You could have two I mean.
Coolala at kickstarter
Come to think of it. Maybe its possible to create an air conditioner based refrigerator. For Africa and elsewhere.