Unvented gas fireplace
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United States of America Patent
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Oct 29, 2013
Grant Date -
Aug 2, 2012
app pub date -
Feb 1, 2011
filing date -
Feb 1, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An unvented gas fireplace in which air flow through a closed combustion chamber is controlled by means of a restriction in the air flow path through an outer plenum chamber surrounding the combustion chamber. The restriction in the air flow path through the plenum causes a pressure differential between the plenum and combustion chamber, forcing air from the plenum into the combustion chamber, where it is combusted and mixed with the cool air that has passed the restriction in the plenum, before the air mixture is exhausted into the surrounding room, thereby heating the room.
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