Flame ShroudHood for pre emergence flame weeding and stale seedbed preparation. The Flame is a hood or shroud that simply clamps onto the head of any standard sized torch with a bell diameter of 2 to 2. 5. The shroud converts a backpack torch flame weeder into a fast, efficient rolling bed flamer. Hood is 15 wide for just two passes on a 30 bed. Included is the stainless steel hood with an aluminum wheel and clamps for torch attachment.