Abstract: A portable heater that includes a ceramic substrate with a heating element configured to define a field of direct radiation, a heat reflector with a concave reflective surface configured to define a field of reflective radiation, a grill cover mounted on the heat reflector, where the ceramic substrate is mounted on an interior side of the grill cover with the heating element facing the concave reflective surface such that the field of direct radiation onto the concave reflective surface is unobstructed.

Abstract: A collapsible crate or container movable between an erect configuration and a collapsed configuration, has a crate member having an upper peripheral rim, a bottom member, two hinged and collapsible opposing side walls and two hinged end walls that collectively define an interior volume when the crate member is in the erect configuration, and a lid member with first and second lid portions and a hinge that releasably couples the first and second lid portions. The crate member and the lid member also includes latch member to releasably latch the lid member to the crate member in a use/deployed position and a stowed position.

Abstract: A portable heater that includes a ceramic substrate with a heating element configured to define a field of direct radiation, a heat reflector with a concave reflective surface configured to define a field of reflective radiation, a grill cover mounted on the heat reflector, where the ceramic substrate is mounted on an interior side of the grill cover with the heating element facing the concave reflective surface such that the field of direct radiation onto the concave reflective surface is unobstructed.