Patent ID: 8655159

Claim:
A portable air blowing appliance comprising: a housing comprising a front face having adjacent first and second forwardly-facing vents; an airflow-producing blower retained by the housing and adapted by rotation of a centrifugal blower wheel to pull a first airflow through the first forwardly facing vent and to push the first airflow through the second forwardly facing vent, and wherein the blower is further adapted by reverse rotation of the centrifugal blower to pull an alternative airflow through the second forwardly facing vent and push the alternative airflow through the first forwardly facing vent; a selector for causing one or the other of the rotation of the centrifugal blower wheel to cause the first airflow or the reverse rotation of the centrifugal blower wheel to cause the alternative airflow; a heating element disposed within the first or alternative airflows at the first forwardly facing vent and adapted when energized to heat airflow produced by the blower; wherein the heating element is not energized when the selector causes the rotation of the centrifugal blower wheel; and the heating element is energized to warm the alternative airflow at the first vent when the selector causes the reverse rotation of the centrifugal blower wheel; and wherein during both the rotation and the reverse rotation air is pulled from forward of the housing and pushed forwardly from the housing.