| 摘要 |
An improved apparatus and method of delivering conditioned air to rooms of a structure or dwelling through ceiling diffusers concealed by a valance and located adjacent the outside walls of the structure is disclosed. Air is delivered to the diffusers by conventional ducting located above the ceiling from a central forced air heating/cooling system and is directed into the room through adjustable apertures in the diffuser in a downwardly direction thereby forming a thermal barrier along the outside wall. Return air is collected at adjustable registers in the floor of the structure which communicate with a network of preformed channels under the flooring and delivered to the central heating or air conditioning system assisted by an auxiliary fan located in the channels.
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