>>43084
With bellows and enough charcoal it just might be possible. But I think that vent is too wide for a bellows, probably could place there a pipe.
At night is still around 0 btw.

I'm thinking how I'm gonna use the bogrács. I could hang it from a tripod. Previously the flames tickled the legs of the tripod, made it sooty and maybe charred them a bit, now they would be surely safe. But I could stand three bricks there and place the pot onto them. The problem with this is that the butt of the pot isn't flat, so harder to securely put it down, also if I'm not careful I could bang it to them harder which would damage the enamel.