The only answer to having even heat in a tent with a wood stove is to invite an over 50 friend with a growing prostrate. He will be up every 2-3 hours to stoke the stove and releave the pressure. Otherwise the stove will fluctuate between too hot and out.
We got a hold of a fifties vintage wheeling stove with coal grates and packable. It broke down well and was easy to pack on horses. However it required lump coal (Which went away in the early 90s), was too much heat early in the evening and closing the damper plugged the pipe with a fuzzy lite ash.
We went back to fir with a handy pile presplit near the stove for the old guy.
Another handy addition was a pair of one size fits all "piss" slippers near the door to facilitate the trip.