Ventilation control in domestic applicance

A cooking appliance comprising:

• a cooking chamber;
• a machine compartment separate from the cooking chamber;
• a wall partitioning the machine compartment into a ventilated zone and a non-ventilated zone, wherein the wall defines an opening;
• a housing disposed in the machine compartment and extending through the opening such that a first portion of the housing is in the ventilated zone and a second portion of the housing is in the non-ventilated zone, wherein a gap is defined between the housing and a periphery of the opening;
• and
• a flange assembly circumscribing the housing and disposed against the wall such that the gap is covered to inhibit airflow between the zones, the flange assembly including a flange member surrounding a portion of the housing and a cap member surrounding another portion of the housing.

A cooking appliance comprising:

• a front panel defining an opening into a cooking chamber;
• a top panel;
• a machine compartment disposed above the cooking chamber and under the top panel, the machine compartment including a wall positioned reward of the front panel and extending between the top panel and a floor of the machine compartment, wherein the machine compartment includes a ventilated zone between the front panel and the wall and a non-ventilated zone rearward of the wall;
• a water-reservoir assembly disposed in the machine compartment and including a housing extending rearward from the front panel and through an opening defined in the wall such that the housing is partially disposed in both the ventilated and non-ventilated zones, the housing including a base and a cover, wherein the base defines a flange configured to cover a gap defined between the base and a periphery of the opening;
• and
• a cap member disposed on the cover at the opening and including a planar portion extending between the top panel and the cover to inhibit air flow through the opening.