> He said "Ammonia" not "absorption"   Many Ice plants used ammonia as a
 > refrigerant and some had some MONSTER compressors. Up to about an 8"X8"
 > Bore/stroke and bigger.  They all stink a little due to minute amounts
 > of ammonia escaping via the crankshaft seals.  
The ice plant next to where I work has a bunch of ammonia compressors, and 
you're right about the slight stink. My Dad had a dairy back in the late '40s 
and early '50s and the [ammonia] refrigeration compressor would occassionally 
leak so bad that you couldn't go in the boiler room with it.
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