The hope isn't to make the temps to go super low just keep them from getting too high. the gas system wouldn't always be running and I was hoping to have the chamber thermally insulated from the rest of the case. imagine a copper reservoir with an epoxy coated pyrex chamber around it for the gas to expand in. the hope is that the gas will decrease the temperature of the coolant in the reservoir slightly to keep max temp down when cpu is at full load. this system could be enabled/disabled when not needed and wouldn't be decreasing temps enough to create condensation.