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Posted by haris noerjadin on May 24, 2002 at 11:10:21:
In Reply to: furnace posted by jack on March 02, 2002 at 05:08:23:
I agree with HP and LP boiler.in case of furnace,there are 3 kinds : pressurized furnace by forced draft fan,negative furnace by induced draft fan and combination of FDF and IDF