Ultralight cooking stove

An ultralight stove for producing heat and flames from burning fuel, comprising

• a fuel reservoir with a bottom and a top with a filler hole therein through which fuel may be loaded into the reservoir and having a plurality of jet holes in the top through which vaporized fuel escapes, maintaining the reservoir unpressurized when the reservoir is unheated,
• a heat conducting heat transfer plug removably received into the filler hole and plugging the filler hole when received therein and remaining as a heat transfer plug in the filler hole during stove operation such that fuel escapes from the reservoir only through the jet holes, a heat transfer plug upward portion extending upward from the stove top, at least a portion of the jet holes directed toward the heat transfer plug upward portion such that fuel escaping from said portion of the jet holes when ignited produces flames that intersect and heat the heat transfer plug upward portion, said heat being conducted through the heat transfer plug to the reservoir where it heats said fuel in the reservoir causing increased fuel vaporization that pressurizes the reservoir causing pressurized fuel to escape through the jet holes resulting in increased heat to the heat transfer plug upward portion which further heats said fuel in the reservoir, the cycle continuing until a fuel consumption and temperature equilibrium is obtained where the heat transfer plug and reservoir reach maximum operating temperatures.

An ultralight stove for producing heat and flames from burning fuel, comprising

• a fuel reservoir with a bottom and a concave top opening upward forming a recess with a filler hole at its center such that fuel poured into the recess is funneled into the filler hole through which fuel may be loaded into the reservoir and further having a plurality of jet holes in the top through which vaporized fuel escapes, maintaining the reservoir unpressurized when the reservoir is unheated,
• a rivet nut with a threaded central hole therethrough comprising said filler hole,
• a heat conducting heat transfer plug including an externally threaded shaft matching the threaded central hole into which it is removably threaded plugging the threaded central hole during stove operation such that fuel escapes from the reservoir only through the jet holes, a heat transfer plug upward portion extending upward from the stove top, at least a portion of the jet holes directed toward the heat transfer plug upward portion such that fuel escaping from said portion of the jet holes when ignited produces flames that intersect and heat the heat transfer plug upward portion, said heat being conducted through the heat transfer plug to the reservoir where it heats said fuel in the reservoir causing increased fuel vaporization that pressurizes the reservoir causing pressurized fuel to escape through the jet holes resulting in increased heat to the heat transfer plug upward portion which further heats said fuel in the reservoir, the cycle continuing until a fuel consumption and temperature equilibrium is obtained where the heat transfer plug and reservoir reach maximum operating temperatures,
• a heat transfer conduit internal the reservoir that extends centrally in the reservoir generally from the heat transfer plug when inserted to heat transfer plug the filler hole to or to near the reservoir bottom therein conducting heat from the heat transfer plug to fuel that may be loaded in the reservoir,
• an external fuel absorber within the recess on the reservoir top to which fuel may be added which when ignited heats the heat transfer plug to initiate stove operation such that before fuel in the external fuel absorber is spent,
• fuel in the reservoir is sufficiently heated to cause vaporized fuel to jet from said portion of the jet holes and be ignited,
• an internal fuel absorber internal the reservoir on the reservoir bottom in contact with the heat transfer conduit such that heat is transferred to the internal fuel absorber and fuel in the internal fuel absorber.