If the somehow-trendy wood-burning stove a friend has recently had installed in the UK is anything to go by — and it was expensive — then "pretty clean" is relative. The air stinks outside his house, and the air stinks inside his house. I don't understand the appeal at all.

I was shocked on a recent trip to England where there was the smell of wood smoke in suburbia.

I wonder how expensive it would be to get widespread usage of better stoves, heat pumps or co-generation + district heating with centralized gasified burning. Everything could be locally built.

I don't know about electricity prices there either.

Gas for heating is something every European nation should steer clear from, for strategic reasons.