Depending on where seekers quest and the season, late period searching can be cold, occasionally bone-chillingly so. Staying cozy throughout these hunts boils down to managing wetness, given that evaporating sweat accelerates warm loss. One means to do this is by using an oven jack.
A range canvas tent jack is a small opening or air vent developed into certain outdoors tents that allows hunters pipe in the heat of a wood-burning oven inside their shelter.