A heater includes an enclosure, a first baffle plate, and a second baffle plate. The enclosure includes a first wall, a second wall opposite the first wall, and a top plate extending between the first wall and the second wall and cooperating with the first wall and the second wall to at least partially define an interior. The heating module is coupled with the enclosure and is disposed beneath the first baffle plate and the second baffle plate. The heater can additionally or alternatively include an air quality monitoring system and an isolation transformer. The air quality monitoring system includes an air quality controller, at least one air quality sensor, and a power input. The isolation transformer is configured to deliver power from the air quality monitoring system to a fuel system controller of the heating module to facilitate powering thereof.

A heater includes an enclosure, a first baffle plate, and a second baffle plate. The enclosure includes a first wall, a second wall opposite the first wall, and a top plate extending between the first wall and the second wall and cooperating with the first wall and the second wall to at least partially define an interior. The heating module is coupled with the enclosure and is disposed beneath the first baffle plate and the second baffle plate. The heater can additionally or alternatively include an air quality monitoring system and an isolation transformer. The air quality monitoring system includes an air quality controller, at least one air quality sensor, and a power input. The isolation transformer is configured to deliver power from the air quality monitoring system to a fuel system controller of the heating module to facilitate powering thereof.

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.

A temperature control appliance adapted for installation over an outdoor gathering area provides infrared, radiant heat or evaporative cooling modes. The radiant burner has a semi-cylindrical porous foam metal radiator element mounted in a housing to direct infrared heat to the gathering area. Evaporative cooling is provided by misting nozzles mounted on the burner housing.