Natural draft portable campfire pit

Abstract From the Canadian patent

In a campground fireplace, it is common to have a wood-burning device permanently set high on a post, which affords a poor means of warmth and cooking. In this invention, a portable tub fitted with handles presents a more practical and efficient means of generating heat. Perforations along the circumference of the tub provide combustion air by natural draft. A center column may provide a medium for leaning the firewood upright onto it and can, be used to rest the tub at an elevated level by sliding it vertically over a sunken, post. An annulus may be fastened to the tub from which a chain may be secured to a tree, a sunken pin, or a post. A removable cooking grille may be placed on the top …