| 摘要 |
Combustion apparatus comprising a combustion chamber, a forced draft mixer and burner assembly extending into the combustion chamber, the assembly including a mixing tube having an open end, an opposed closed end, and a generally cylindrical, foraminous side wall extending between the ends, and a plurality of generally circular disks supported in the tube in spaced-apart relation over the length of the tube, the diameters of the disks increasing in the direction from the open end to the closed end, a blower for supplying air to the to the open end of the mixing tube, and a heat exchanger located in the combustion chamber adjacent the mixer and burner assembly.
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