I've seen this done before with a Marquee at Scouts. You just have to hang heat proof curtains either side of the flue exit.
Works well, even get the stove glowing, just like a cast iron pot belly.
They sit back far enough then. Boils the kettle at the same time.
Just like ya mum or ya nanna.
Have a look at the tents they use in MASH the TV show. Straight from the Korean War.
I know they're war surplus, so please don't jump about too much.
Each tent has a stove, with a heat collar around the flue.