[looofooo0]

Not true, I can buy a Chinese 4kw Model for 650€ which can heat till -15degree. Doubt that you can save much.

[walrus01]

Go price air conditioners in the uae or Kuwait or similar, the cooling only models are very much a thing that exists on the market.

[looofooo0]

But not in Europe. It is only one 4 way valve extra to enable heating.