A: No. This particular product is not designed to be refilled. There are refillable 1lb cylinders with safety valves available on the market, however, this one is designed to be disposable.
A: The Coleman® Propane is manufactured by Worthington. Any questions and quality concerns should be directed to firstname.lastname@example.org Customer Care 1-800-346-9386
A: It could. When running down in the bottle it will frost up and leave some ice underneath it at times. I haven't been bitten by the cold that way but I guess it could if ran long enough.