Please watch: “Drift – A Primal Outdoors Story by Morningstar Films”
https://www.youtube.com/watch?v=s3C9IQ4Ao08 –~–
Tips on how to use a portable heater inside a camping tent. I use a Mr Heater Buddy because it has a couple of good safety features like low oxygen sensor and tip over shut off.
Mr Heater Buddy on Amazon
https://www.primal-outdoors.com/mrheaterbuddy