Dave M. posted his process for removing a threaded barrel from his PTFE insulator, and it’s brilliant.  I was wondering how to do this since I may want to get my heater barrel out of the nozzle.  But, how to do it without having to some plyers, vice, or some other crushing instrument on the threads?!

• Screw on one nut, a washer, and another nut.
• Put the PTFE in a vice
• Put a wrench on the nut below the washer
• Muscles!