| 摘要 |
The present invention relates to a method and apparatus for efficiently capturing heat generated by a fuel source such as gas or gas logs and distributing the heat produced thereby into selected areas of a structure. In a fireplace environment having gas logs therein, the present invention entails a duct structure extending generally over the gas logs. A fan is provided about an inlet end of the duct structure and produces a primary system of forced air that is introduced into the duct structure and moved therethrough, generally over the gas logs within the fireplace. In an area overlying the gas logs, the duct structure is provided with an opening and a transverse restrictor plate disposed within the duct adjacent the opening. As the system of forced air passes the restricted area, warm or hot air heated by the gas logs underlying the duct structure is induced into the duct structure where the same combines with the already produced system of air passing through the duct structure. Consequently the warm or heated air combines with the primary system of air to form a heated forced air system that is exhausted from the duct into an adjoining room or rooms for heating the structure.
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