Abstract: A flexible duct system for providing hot ambient air to a clothes dryer comprising: an attic transfer duct assembly, where a first end of said attic transfer duct assembly extends into an attic area to access ambient air; a connecting duct assembly, where the connecting duct assembly connects to the clothes dryer; and a means to connect the transfer duct assembly to the connecting duct assembly, where said means transfers ambient air from the attic to the clothes dryer. In one exemplary embodiment, the means to connect includes an elbow connector. In most applications, the connecting duct assembly attaches to a dryer manifold within the clothes dryer, where the air flow through the dryer manifold transfers through a heating element and into the tumbling area of the dryer. In another exemplary embodiment of the present invention, the heating element may include an off and on switch.