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Old 2015-07-31, 4:31pm
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allicat allicat is offline
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Join Date: Jun 16, 2012
Location: New Yawk
Posts: 4,161
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Sure. A reduction flame is one that's more fuel than oxygen.

With the HotHead you are always running on the fuel rich side, as the vent holes just add a small amount of room air. That's opposed to dual fuel torches, which are made to use an additional oxygen source (like an oxycon) and which you can adjust the flame composition.

A reduction (or fuel rich) flame affects certain glasses as the fuel is looking for O2 to combine with. When there isn't enough, it steals it from the glass, causing a reaction.

Make sense?
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