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Heat Accumulators

Fireplace-heating-channel

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Fireplace heating channel

Details

Inventors: Nelson, Clifford H.;
Assignee:
Primary Examiner: Sprague; Kenneth W.
Assistant Examiner: Schwartz; Larry I.
Attorney, Agent or Firm:

This invention is designed to increase the heating efficiency of a conventional type fireplace. The fireplace heating channel consists of a hollow metal air conveying channel which is designed to fit closely against the multiple inside walls of a conventional fireplace in combination with a hollow metal flame guide vane that connects the upper inside portions of the side arms of the air channel. The flame guide vane is triangular in cross section and positioned horizontally and forward of the center panel of the air conveying channel so as to form a suitable passageway for the hot ascending fire gases. The entire assembly is moved upward during installation by means of vertically adjustable legs so as to position the horizontal base of the flame guide vane against the horizontal arch of a conventional fireplace thereby forcing the room air to enter the fire below the apex of the flame guide vane. This reduces the flow of excess room air up the chimney and, in addition, so directs the flow of incoming room that the rising fire gases are constrained to move upward against the center channel, thereby promoting the transfer of fire heat to the fireplace heating channel. The channel and flame guide vane are heated by the fire and room air is forced to make multiple horizontal passes through the fireplace heating channel. The heated room air being vented back into the room. The device is free standing and is also readily insertible in a conventional fireplace and does not require modification to the fireplace structure and does not interfere with its normal functioning. Because of these features the device is compatible with a broad range of fireplace sizes and types.

DETAILED DESCRIPTION The Fireplace Heating Channel consists of a metal air conveying channel designed to fit closely against the multiple inside walls of an existing fireplace and equipped with a flame guide vane.
The channel and vane are heated by the fire.
Room air makes multiple horizontal passes through the fireplace heating channel and at option through the vane.
A blower or natural convection forces may be used to induce room air flow through the subject heating channel.
The heated room air is vented back into the room, yielding a substantial increase in the overall heat output from the fireplace.
The installation of the device does not interfere with the normal functioning of the existing fireplace and requires no modification of the basic structure.
Cross Reference To A Specifically Related Patent This application pertains to improvements to my U.
S.
Pat.
No.
3,896,785 issued July 29, 1975 to Clifford H.
Nelson.

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