This doesn't address the smoke / smell issue. I found this link and thought it was an interesting way to heat a tent. Who knows? It may come in handy as a back up plan. All you need is some piping. If you are driving in to your campsite, the pipes neither weigh much, nor take up much room.
FWIW. Just thought it was interesting and thought I'd share it.
https://m.youtube.com/watch?v=QeHGDr81XwM
