However it absolutely must be an unused chimney in an unused fireplace.
Ac unit without window vent.
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This will allow you to get the air exchange you need for your air conditioner.
One option which seems to be favored by some people is currently using a wall vent to hot air.
Never try to vent a portable ac unit through a functional working chimney or fireplace that s a huge safety risk.
There s one more way that you can vent a portable ac unit and get rid of that hot air in a windowless room.
Evaporative air coolers offer a ventless portable air conditioner option.
These add moisture and humidity to the air.
You can use this procedure to vent your portable ac unit to the outside or to another room like storage space a laundry area or garage.
Venting a window air conditioner the best way you can vent a room without a window is by creating a vent in a wall.
Most mobile air conditioners have reservoirs that should be emptied but some offer hookups for a drainage hose.