Depending upon where hunters hunt and the period, late period hunting can be cold, occasionally bone-chillingly so. Remaining warm during these pursues boils down to handling moisture, since vaporizing sweating accelerates warmth loss. One means to do this is by utilizing camping cookware a range jack.
A stove jack is a small opening or vent developed right into specific outdoors tents that lets hunters pipe in the warmth of a wood-burning range inside their shelter.