The air conditioner must vent the hot air somewhere.
													
																	Vent portable ac through garage door. 
									
	
		
	
																	You ll need a space of 6 7 inches. 
																	If you need to run a portable air conditioner without any exhaust vent tube set it to run in dry or dehumidifier mode and connect a garden hose to the top drain port so you can collect condensed water in a bucket or floor drain. 
																	Gulrear sliding door air conditioner kit max adjustable length 220cm 87inch sliding door ac vent kit suit for 13cm 5 1inch exhaust hose 4 3 out of 5 stars 434 48 99 48. 
																	Let s say that the vent hose is five inches in diameter. 
															
													
									
	
		
	
																	Issue of venting the portable air conditioner. 
																	If a window is not an option the other choices would be venting through the roof or wall. 
																	One option which seems to be preferred by some people is actually using a wall vent to remove hot air from a portable air conditioner. 
																	Garages usually do not have a traditional sliding window which is the most common way to vent a portable unit. 
															
													
									
	
		
	
																	This would require drilling a hole through the side of the garage to fit the exhaust hose. 
																	Slide your sliding door back far enough to allow for the vent hose.