Patent ID: 8006962

Claim:
A humidification system for installation into an air duct of a forced air furnace, said humidification system comprising: a housing mountable into the air duct, said housing including a base frame, a cover and at least one open end panel, wherein said base frame is mountable to an opening in the air duct, wherein the opening is shaped and configured to align with said base frame, wherein said cover is attachable to said base frame and configured to encourage flow of air from an air inlet to an air outlet; and wherein said open end panel is positionable between said base frame and said cover, and said open end panel includes an air outlet; an evaporative element positioned between said air inlet and said air outlet; a means for controlling humidity output; a bypass frame comprising a plurality of louvers positioned at least partially within said air inlet, said louvers being sized and configured to extend at least partially into the air duct, said louvers being graduated in size so that the length of the louvers increases in the direction of the air flow; and an air return extending from said open end panel to said air duct.