Ducted panel arrangement

An insulated panel arrangement, comprising:

• a modular insulated panel having a pair of opposed left and right panel ends and a pair of opposed top and bottom panel ends, said modular insulated panel including parallel, spaced-apart inner and outer planar skins defining an interior space between said inner and outer planar skins, and an insulated core extending between said inner and outer planar skins and generally filling said interior space;
• wherein each of said planar skins has a pair of opposed top and bottom edges and a pair of opposed left and right edges, with at least one pair of opposed edges on each of said planar skins being bent toward the other of said planar skins to define two pairs of first and second opposed end faces located at respective first and second opposed panel ends;
• a hook assembly at the first of said respective opposed panel ends;
• and
• a pin assembly at the second of said respective opposed panel ends, directly opposite the hook assembly so that, when two of said modular insulated panels are placed end to end, with the first respective opposed panel end of one modular insulated panel abutting the second respective opposed panel end of the other modular insulated panel, the hook assembly on the one modular insulated panel engages the pin assembly on the other modular insulated panel to pull the two modular insulated panels together;
• wherein said one modular insulated panel has an internal wall between the inner and outer planar skins defining an internal chamber isolated from said insulated core, said internal chamber having an inlet opening and an outlet opening, so that air can flow into said panel through said inlet opening, through said internal chamber, and out of said panel through said outlet opening.