Adaptable exhaust box

Details Adaptable exhaust box Adaptable exhaust box

E - Fixed Constructions

04

F

E04F 17/04 (2006.01) D06F 58/20 (2006.01) F16L 5/00 (2006.01) F24F 13/02 (2006.01) F24F 13/20 (2006.01)

Patent

CA 2684660

An air exhaust box, for mounting in an exterior building wall and connecting to at least one exhaust duct, includes: a housing having side walls, a rear wall and a front exhaust opening; the front opening having a mounting flange surrounding a periphery of the opening and extending outwardly from the side walls; the rear wall having an inlet opening greater than a predetermined maximum dimension; each of the side walls being joined to the rear wall at an angle less than 90 degrees; and a duct adapter having a cover removably mountable to the rear wall with removable fasteners, the cover having an outer dimension larger than said maximum dimension of the inlet opening and a rearwardly projecting duct sleeve with an inner opening of size between said maximum dimension and a minimum dimension.

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