System with a ceiling fan and return plenum for heating, drying or curing an object

A system for heating, drying or curing an object, the system comprising:

• a housing including:
• a first wall having a first height,
• a second wall having a second height, the second wall opposite the first wall, and
• a ceiling extending longitudinally between the first and second walls, wherein a first volume is defined by the first wall, the second wall, and the ceiling;
• an air plenum including a plenum wall having a periphery defined by a front edge, a rear edge, a first side edge, and a second side edge, wherein:
• the plenum wall is displaced from the ceiling into the first volume,
• a plenum air volume is defined between the ceiling and the plenum wall, and
• at least one air plenum opening is located in the plenum wall;
• a fan disposed in the at least one air plenum opening;
• a first ductwork assembly including a first ductwork wall having a periphery defined by a front edge, a rear edge, a lower edge, and an upper edge, wherein:
• the first ductwork wall is displaced from the first wall into the first volume,
• the first ductwork wall has a third height, the third height less than the first height,
• a first return air volume is defined between the first ductwork wall and the first wall, and
• the upper edge of the first ductwork wall is joined to the first side edge of the air plenum wall;
• a second ductwork assembly including a second ductwork wall having a periphery defined by a front edge, a rear edge, a lower edge, and an upper edge, wherein:
• the second ductwork wall is displaced from the second wall into the first volume,
• the second ductwork wall has a fourth height the fourth height less than the second height,
• a second return air volume is defined between the second ductwork wall and the second wall, and
• the upper edge of the second ductwork wall is joined to the second side edge of the air plenum wall;
• and
• an open volume configured to hold an object to be heated, dried or cured, wherein;
• the open volume is defined, at least in part, by a lower surface of the plenum wall, an inner surface of the first ductwork wall, and an inner surface of the second ductwork wall,
• the open volume is in air-communication with the plenum air volume via the at least one air plenum opening,
• the open volume is in air-communication with the first return air volume via at least one first ductwork opening in the first ductwork assembly,
• the open volume is in air-communication with the second return air volume via at least one second ductwork opening in the second ductwork assembly, and
• the open volume includes no additional ductwork to carry air between the air plenum opening and either of the at least one first ductwork opening or the at least one second ductwork opening.

A system comprising:

• a housing having:
• a first side wall having an upper edge, a lower edge, and a first height corresponding to a distance between the lower edge and the upper edge;
• a second side wall opposite the first side wall, the second side wall having an upper edge, a lower edge, and a second height corresponding to a distance between the lower edge and the upper edge of the second side wall;
• a ceiling extending between the upper edge of the first side wall and the upper edge of the second side wall, and
• a floor extending between the lower edge of the first side wall and the lower edge of the second side wall, wherein a first volume is defined between the first side wall, the second side wall, the ceiling, and the floor;
• an air plenum, wherein the air plenum has a plenum wall disposed into the first volume from the ceiling, wherein a second volume is defined between the ceiling and the plenum wall and the air plenum includes at least one air plenum opening in the plenum wall extending between the second volume and a chamber, the chamber configured to hold an object to be heated, dried or cured;
• a fan disposed in the at least one air plenum opening to draw air from the second volume and deliver air into the chamber through the at least one air plenum opening;
• a first ductwork assembly disposed into the first volume from the first side wall, the first ductwork assembly extending from the plenum wall toward the floor for a distance less than the first height and defining a first ductwork volume, wherein the first ductwork volume is in air-communication between the chamber and the second volume and wherein the first ductwork assembly includes at least one first ductwork opening extending between the chamber and the first ductwork volume;
• and
• a second ductwork assembly disposed into the first volume from the second side wall, the second ductwork assembly extending from the plenum wall toward the floor for a distance less than the second height and defining a second ductwork volume;
• wherein the second ductwork volume is in air-communication between the chamber and the second volume and wherein the second ductwork assembly includes at least one second ductwork opening extending between the chamber and the second ductwork volume, wherein substantially all air circulation in the chamber is between the at least one air plenum opening and a combination of the at least one first ductwork opening and the at least one second ductwork opening.