使烟道吸力与煤气压力相适应，测量分烟道中废气的含氧量并加以校正，以保持一定的空气过剩系数，使燃烧处于最佳状态。
Gas flue suction and pressure to adapt, measuring points in the flue gas exhaust and the oxygen content to be corrected in order to maintain a certain excess air ratio, so that burning at its best.
烟道式：燃烧时室内取氧，废气通过一个管道排放到室外，但在室外风大时会产生倒灌，安全隐患大；
Strong platoon type: when the combustion chamber takes oxygen, the exhaust gas passes through the small blower through the pipeline to discharge outdoors, the price is higher;
烟道式：燃烧时室内取氧，废气通过一个管道排放到室外，但在室外风大时会产生倒灌，安全隐患大；
Strong platoon type: when the combustion chamber takes oxygen, the exhaust gas passes through the small blower through the pipeline to discharge outdoors, the price is higher;
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