A lot of morons can do basic electrical,hvac and such.... But it's a whole other beast when dealing with controls on things such as Chillers, dx units, Cooling towers, Veriable Frenquency Drives, Conveyers, CNC lathes etc. Hell, and I even forgot to mention I deal in Fire Alarms and Telephony.
None of that shit will work without mechanical energy dawg. And evaporative cooling is super ez unless you start fucking with pressure and referigerants/coolent liquids and pumps.
It's way simpler to salt your gathered food or live seasonally. Than to try and re-engineer a refrigerator out of sticks and rocks.
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