Quote Originally Posted by GaGrown
Being an HVAC, Master sheetmetal mechanic. I have seen 1st hand that an air conditioner in a window will raise humidity. Hot and cold air meeting you get condensation on the walls and anything metal or plastic.Making the risk higher to aquire an airborne mold or mildew. The best senario would be to use only the dehumidifier and draw air into your room with a passive vent with a backdraft damper.You keep your sealed room aspect. Use a scrubber and a dehumidifier.
I copied the following from:
How air conditioners work
There are three main kinds of air conditioning systems. Summer air conditioning will clean, cool, and get rid of moisture from the air. Winter air conditioning will clean, heat, and add moisture to the air. Year-round air conditioning will clean and control the temperature and the amount of moisture in the air throughout the year.

With a sealed room, it will (or should) be only "summertime" in there while the lights are on.

keylime
keylime Reviewed by keylime on . Please Help!! Question about Heat removal from a "Sealed" room OK, so I have this small area that I am turning into a grow room, the total area of the room will be around 250 cubic feet. The area that will be usable for the grow will be closer to 165 Cubic feet. The room will be completely sealed for the benefit of Co2 Enrichment via pressurized tank/regulator. As far as heat producing devices we are only talking about 1000 watt HPS, and probably 600 watts T5. A guess would place that pretty close to 5,000 BTU's when they are all on. What are my best Rating: 5