Cool! Literally.... I'm so into stuff like this, I'll have to build one now. This antique contraption works just like gas powered refrigerators in RV's and even heat pipes in modern PC's. Ammonia is some nasty refrigerant to work with though.

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Current Stable:
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!)

PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320