VENTED RECYCLING OVEN WITH SEPARATE CATALYTIC CONVERTER

摘要

A recycling cooking oven (10) for cooking food at least in part by hot air flow and providing a substantially closed but vented environment includes a cooking chamber (22). A blower (24) circulates a stream of hot air in substantially a continuous travel path. A main catalytic converter (50) is disposed in the continuous travel path for flamelessly oxidizing the oxidizable components leaving the cooking chamber. A vent (60) communicating with ambient atmosphere and the main catalytic converter (50) has an auxilia ry catalytic converter (62) disposed therein, downstream of the main catalytic converter (50), for flamelessly oxidizing oxidizable components in the hot a ir of the auxiliary vent stream passing through the vent (60), thereby to furth er remove oxidizable components from the hot air of the auxiliary vent stream a nd so release a relatively clean auxiliary vent stream of hot air from the vent (60) into the ambient atmosphere.