Being a desert dweller... would love to know more about this idea.
From what I have gathered compressor units are better than thermoelectric in one regard - they can operate in much more varied environments. The effective range of a TE unit is not near high enough to handle hot 80 degree plus rooms. Compressors can handle it with ease but they do suck humidity out of the unit and cause wide RH swings.
The common solution is storing your sticks in cigar boxes that act as a buffer against the swings. A cigar in a box won't know the swing even occurred by the time the swing has corrected itself.
Another thing to help is a temperature control unit $28-50 and up on Amazon. Set your high and low temps and plug in the cooler to the unit. Keeps the temp where you want it and cuts down on the compressor running needlessly. This makes the cooler only run when needed and monitors the temp much more accurately than the thermostat that comes on the unit.
Finally KL or beads will seek to minimize the RH swings. They likely won't eliminate them, and from what I can gather from the experts, that is ok. You should see a swing minimize from 20 -25 points to closer to 10-12 which is the same as opening your humidor and browsing your stash several times a day.
The takeaway: Put your sticks in boxes. Put beads or KL in the unit. Buy a temp controller for even more control. Enjoy. Also the closer the ambient temp in the room is to what you're trying to maintain the less the compressor will run anyway.
Since my ambient is 75 or 74 I won't have a lot of trouble maintaining 65 degrees with this unit.
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