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U.S. Department of Energy
Office of Scientific and Technical Information

Combination glass door and heat-exchanging grate for fireplaces

Patent ·
OSTI ID:6285522
An improved combination glass door closure and ducted (e.g., tubular) heat exchanging grate for fireplace cavity. The heat exchanger comprises a plurality of hollow, generally parallel, C-shaped heat exchanger members which are carried by a glass door fireplace closure. One end of the heat exchanger members is attached to the fireplace closure by means of a sliding or floating seal and means are provided for preferentially directing the flow of air to the centermost heat exchanger members.
Assignee:
Thermograte, Inc.
Patent Number(s):
US 4129113
OSTI ID:
6285522
Country of Publication:
United States
Language:
English