[Joe]

While never using an Phase change compressor setup in a computer, I have worked on them in cars and appliances. and my comment on the whole deal is:

propane is stupid, and dangerous. Yes you can cool down low, but one leak, one spark, one big boom in a confined space.

Also 99.9% of all compressors out there are NOT suitable for propane. Will they work? yep. Will they last? Nope. Propane and Butane reacts with the lubircant/oil in an A/C system and will eat away at O rings in the systems.

There are pictures on the web of compressors that blew the stator out of the compressor just from using propane and having a seal leak.

Also testing with a torch is a VERY FREAKING stupid thing to do. Phase Change setups are made to dissapate X watts of heat, NOT constant FLAME! I would very much discount anything Punisher said, and consider it the dangerous and reckless way of burning money and time.