| 摘要 |
A space heater which is generally rectangular in shape and which has a chamber inside which is generally square in cross section. This square shaped chamber has inlets along the bottom thereof and outlets along the top thereof. An improved burner assembly is disposed centrally on the bottom wall of the chamber housing and includes a vertically extending conduit having an opening in the top thereof. A first square plate is attached to the top of the vertically extending conduit and the first square plate is disposed generally horizontally and has a round opening in the center thereof for allowing a fuel and air mixture to exit therethrough. The first square plate has upwardly extending flanges on each edge thereof for directing flames upwardly and causing the flame to be of the same cross sectional shape as the chamber. A second square plate, smaller than the first square plate, is disposed just above the first square plate and is also horizontally disposed. Downwardly depending corners on the second square plate are welded to the first square plate above the round opening in the first square plate and the edges of the second square plate are oriented so that the outer edges of adjacent walls of the first and second square plates are at a forty-five degree angle with respect to each other, whereby the flame will tend to be spread evenly over the top of the first square plate.
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