Whole house fan system and methods of installation

  • US 7,497,774 B2
  • Filed: 07/13/2005
  • Issued: 03/03/2009
  • Est. Priority Date: 07/13/2004
  • Status: Active Grant
First Claim
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1. A whole house fan system for building structures having a dwelling area and an attic, wherein the attic has at least one rafter, said whole house fan system comprising:

  • a fan having a plurality of fan blades and a motor, wherein the fan lessens the static air pressure in the dwelling area by actively drawing air from the dwelling area and then pushing the air into the attic, wherein the lessened static air pressure in the dwelling area allows external cooler air to be drawn into the dwelling area through an open window or door;

    a venturi collar, said venturi collar surrounds the fan blades and is adapted to reduce the noise level generated by the air flow;

    an air admitting device, said device configured to be positioned in an opening formed in a ceiling of a building structure;

    an elongated, flexible acoustically insulating material extending between the fan and the air admitting device, said material defining an air passageway between the fan and the air admitting device, wherein the insulating material is sufficiently long such that a first end of the insulating material is adapted to positioned adjacent to the ceiling and a second end of the insulating material is adapted to be positioned adjacent to the rafter in the attic, and at least a portion of the venturi collar is disposed within the insulating material; and

    at least one strap, said strap is adapted to suspend the fan and the elongated, flexible acoustically insulating material from the rafter, said strap attenuates the vibration generated from the fan.

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