So the kettle you converted was a G code and the vents were longer than the newer ones? If I understand that correctly, I don't think it'll be an issue. The 18 that I pulled the ash catcher assembly was off an older kettle and the kettle I'm converting is relaitvevly new. Based my interpretation of what you're saying, the vents should be short enough on the new kettle to fit fine in the old ash catcher. Is that right?