My current early build mimics @PakaNoHida as it is an easy way to get a fire into a reclaimed building.

I am curious if anyone of the 'tall building' crafters have an idea of just how many blocks (meaning a full sized wall piece) high you need to go to make a roof vent (non chimney) work.

@GunsforBucks Interesting build approach. Any inside pics?

@Happy Do you recall how tall, in blocks, you needed to go so the smoke just dissipated over time?