A continuation of a paper presented at the 56th Annual Conference on Glass Problems, the authors wish to share data generated in the intervening two years. Oxy-fuel furnaces, either converted on the fly or built as oxy-fuel furnaces, have completed first campaigns and are starting second campaigns. Improved construction practices and better materials are improving the expected life and performance of furnaces. Two methods of measuring water in glass will be discussed briefly and examples of ways to translate data from one to the other will be presented. Finally, recent measurements and observations indicate that water in glass may have a larger role in the physical and chemical mechanisms of refining. These recent data help explain improved refining with oxy-fuel.
