초록 ▼

A method and apparatus for ventilating a building comprises an air duct extending between an attic and a basement or crawl space through an occupiable portion of the building. The duct has no openings within the occupied portion of the building, the occupied portion being substantially isolated from

A method and apparatus for ventilating a building comprises an air duct extending between an attic and a basement or crawl space through an occupiable portion of the building. The duct has no openings within the occupied portion of the building, the occupied portion being substantially isolated from the transfer of air to and from either the attic or the basement or crawl space. An exhaust fan extracts hot air from the attic to the atmosphere, while a duct fan replaces the air in the attic with cool, humid air from the basement or crawl space. The crawl space or basement is replenished through exterior openings in the building to the atmosphere. A thermostat and humidistat control the operation of the fans in response to environmental conditions within the attic. A detector can shut down the fans if radon is detected in the duct.

대표청구항 ▼

A forced climate ventilator comprising: duct means for accommodating the transfer of air between an attic and a crawl space of a building, said duct means providing a closed conduit extending continuously through an occupiable portion of the building intermediate the attic and crawl space, said duct

A forced climate ventilator comprising: duct means for accommodating the transfer of air between an attic and a crawl space of a building, said duct means providing a closed conduit extending continuously through an occupiable portion of the building intermediate the attic and crawl space, said duct means having only a first aperture in a portion of said duct means extending into the crawl space permitting entry of air from the crawl space into said duct means, and a second aperture in a portion of said duct means extending into the attic permitting exit of air from said duct means into said attic, said second aperture being located adjacent a lowermost level of the attic; and first fan means for forcibly expelling air from within an uppermost strata of the attic to the outside of the building through at least one opening in a roof of the building.