| 摘要 |
The invention relates to equipment intended, in a closed hearth, to regulate the distribution of heat exchange on the periphery of the apparatus by means of indentations made on the sides of a corridor situated at the bottom of the outside of the hearth, with the possibility of shutting off these indentations in order to obtain a different distribution after blind lateral air inlet openings provided. The system comprises two sets of indentations A and A', on the sides of a corridor B and B', a main air inlet E, a rear exchange surface C and two hot air outlets D and D'; the indentations thus arranged allow passage over the lateral walls of the apparatus G and G'. If a casing is arranged so as to block off the indentations A and A', two lateral air inlets F and F' may be made so as to obtain three independent exchange passages F over G, F' over G' and E over C. <IMAGE>
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