A portable fireplace is disclosed. The portable fireplace may include a receptacle and a refractory liner. The receptacle may have a base and a wall, and the wall may extend upward from the base. An interior side of the wall and an interior side of the base may define a burn chamber that is open to an environment external to the receptacle. The refractory liner may be positioned within the burn chamber, and the refractory liner may engage the interior side of the base and the interior side of the wall. The refractory liner may be configured to receive and absorb at least a portion of a flammable substance.

A portable fireplace is disclosed. The portable fireplace may include a receptacle and a refractory liner. The receptacle may have a base and a wall, and the wall may extend upward from the base. An interior side of the wall and an interior side of the base may define a burn chamber that is open to an environment external to the receptacle. The refractory liner may be positioned within the burn chamber, and the refractory liner may engage the interior side of the base and the interior side of the wall. The refractory liner may be configured to receive and absorb at least a portion of a flammable substance.

A cooking grate assembly configured for use on a portable radiant heater with a front safety grille. The cooking grate assembly has a flat main cooking grate with an upper/inner end and a lower/outer end, a pair of spaced hook tabs extending from the upper/inner end of the grate that attach to an upper part of the grille, and a pair of inwardly-angled key tabs extending from the lower/outer end of the grate. A pair of detachable legs supports the grate from a lower part of the grille, with a rotatable locking connection to the key tabs on the grate at one end and opposed inner and outer hooks at the other end that both support the grate on the grille and provide a nesting flat interlock to the rear face of the grate for storage.

A cooking unit may operate using multiple types of fuel to cook food. One or more first heat source, such as gas burners, electrical resistive heaters, and/or other heating technology, may provide radiant heat to a cooking chamber. One or more second heat source, such as a firebox, may provide indirect heat to the cooking chamber, for example by producing smoke. User operable controls and/or an automated control unit may alter the rate at which a fuel and/or air is supplied to one or more heat source.

A field-ready oven has reinforced telescoped side walls that extend and hold a base, shelf, tray support and cover spaced apart. A low air intake and a semipermeable membrane deliver air and vapor fuel to catalyst pads on the shelf. Radiant heat from exothermic reaction is diffused over a bottom of a tray. Hot gas circulates around the diffuser and tray with a chimney effect before exhausting. A lid on the cover lifts for access to the tray. A fuel container in the oven forces fuel through a capillary restriction to limit fuel flow. A spring in the container is released to start fuel flow.

A field-ready oven has reinforced telescoped side walls that extend and hold a base, shelf, tray support and cover spaced apart. A low air intake and a semipermeable membrane deliver air and vapor fuel to catalyst pads on the shelf. Radiant heat from exothermic reaction is diffused over a bottom of a tray. Hot gas circulates around the diffuser and tray with a chimney effect before exhausting. A lid on the cover lifts for access to the tray. A fuel container in the oven forces fuel through a capillary restriction to limit fuel flow. A spring in the container is released to start fuel flow.

The invention relates to a stove that operates using liquid fuel of alcohol and water that can be diluted to concentrations as low as 50% alcohol by volume.

The invention relates to a stove that operates using liquid fuel of alcohol and water that can be diluted to concentrations as low as 50% alcohol by volume.

An improved portable cooking shield for enclosing a cooking device is presented. The portable cooking shield features a plurality of heat-absorbing side panels in an extended spaced-apart relationship and being pivotally coupled by collapsible support hinges. Heat resistant handles are provided for lifting the shield and for compressing the plurality of side panels into a flattened position. An upwardly extending lighting device port is provided for accommodating at least one lighting device for the cooking device.