Window Air Conditioner Freezing Up, Will Portable AC Do the Same?

Oh yea gotcha, i thought u meant you got mold ducting outside winter air in

that too. if outside cold air is coming into the warm room, then the warm room air must be exhausted at the same time, through leaks, etc. this is where mold will flourish, wet, warm meets cold.....
 
I will be making a guide here in the next week or so of rigging up a normal HVAC thermostat to power a damper and fan system (used when pulling fresh air from cold places)

Did you ever make that guide? Looking for a cheap/good way of bringing in cold air vs portable AC's which seem to have issues and less hole cutting in walls the better! lol
 
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