Blocking off intake and exhaust ceiling register vents?

Hey guys, I just have a quick question. I'm trying to route my portable a/c out through one of the ceiling registers then out through the roof. Is it okay to block off both the intake and exhaust vents into the room? Will it mess up my central a/c?

Shouldn't hurt anything if it is just 1 register that is being blocked, the only result will be a wee bit of airflow increase somewhere else in the system. Are you going to just close the vent, or remove and close off the end of that a/c duct to route your other through that vent?

Peace

Asmallvoice

Thanks for the quick reply ASMALLVOICE. I was going to lift the register up out of place and seal it off, and then run the portable a/c hoses up through the open hole in the ceiling and then try to insulate all the open area around the portable a/c hoses in the ceiling somehow. Got any idea's how I should plug up the openings that will be around the portable a/c hose in the ceiling? Maybe just stuff insulation into the open areas of the ceiling? If that makes sense.

Absolutely M8, you should have no issues with that, and it will make it alot easier to put back in the future, should you need to.

Peace

Asmallvoice