Why are fridges in cold climate countries not mounted into the wall of a house so the ambient air could cool the inside?

Question

Why are fridges in cold climate countries not mounted into the wall of a house so the ambient air could cool the inside?

In: 1559

Answer 1

Sure winters here are cold. -40C

But the summers are super hot to +40C

So 🤷 I like a constant cool temperature in my fridge.