| 摘要 |
PURPOSE:To facilitate to confirm combustion in a combustion chamber by providing a heat permeating board, dispersing infrared-ray from a red-hot body into wide angle. CONSTITUTION:The red-hot body 14, heated by the blue flame from a burner 1, is attached to a square window 13 opened at a proper place on the side peripheral wall of the combustion chamber 2, the first corrugated heat permeating body 21, permeating the infrared-ray from the red-hot body 14 and dispersing it into wide angle, is attached to the window 13 and the second heat permeating body 28, dispersing the infrared-ray passed through the first heat permeating body 28 into further wide angle, is attached to a front panel 30. The infrared-ray is projected from the red-hot body 14 red-heated by the blue flame from the burner 1, then, is dispersed by the first heat permeating body 21 and is dispersed further by the second heat permeating body 28. Accordingly, the user can see the infrared-ray from the red-hot body 14 in a wide angle and confirm the combustion of the burner very easily.
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