How do you disperse a propane torch's flame?

For some torch applications — particularly for cooking, but also other things — you want a flame's heat to be somewhat wider than a standard flame provides

• A few applications need a very wide propane flame, including roofing torches and weed torches.
  • These use a nozzle / tip that
• nozzle modification — remove the flow-restrictor in a standard propane torch head
• video about bending wood without steam, with a broad propane flame

COTS options that are available for propane (COTS = commercial off-the-shelf)

• nozzles
  • rosebud nozzles
  • For relatively specialized tips, there are different size tips available.
• large cylindrical heads [1] [2] [3] [4] [5]
• large conical heads [1] [2]
• medium heads [1]
• XXL heads [1] [2]
• flame spreader attachment [1] [2] [3]
• with hose [1]
• unique / unorthodox solutions [1a] [1b]

COTS options that are available for butane

• heads [1]

other COTS

• Flame King sells a lot of great products in this space, including things like an extension hose for 1lb propane tanks

DIY put a mesh in front of the flame

The Searzall has proven that putting a mesh in front of the flame can disperse the heat somewhat. But you can put a mesh in front of ANY flame, right? Not just this one. (teardown)