| 摘要 |
A compact, combination infra-red heating and ventilating unit for bathrooms and the like. The unit is divided into an upper compartment containing all the electrical components, and a lower compartment containing the infra-red lamps. The bulk-head dividing the said compartments is provided with an aperture for the flow of air to the ventilating fan in the upper compartment, and the aperture is shielded from back radiation from the infra-red lamps. The interior of the lower compartment and the shields are provided with heat reflective surfaces. A cover plate is provided which has apertures larger than the outside diameter of the lamps to provide for air flow, and the apertures in the cover plate have contoured edges to reflect peripheral radiation into the room. The upper compartment contains a motor and fan and all the electrical wiring, and is adapted to be connected to a duct for venting to atmosphere. A gravity actuated damper is arranged in the vent opening such that when the fan is not operating, it still permits passage of hot air by convection.
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