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BigNumbers · 03-18-2015, 03:36 PM

I'd follow along a line from the outside plumbed into your cold air intake in the basement. It's likely an insulated pipe.

Not what you sent - that's not what you want. it's a flap you turn in the house to open or close the vent:

03-18-2015, 03:36 PM	#320
BigNumbers Powerplay Quarterback Join Date: Jan 2013 Exp:	I'd follow along a line from the outside plumbed into your cold air intake in the basement. It's likely an insulated pipe. Not what you sent - that's not what you want. it's a flap you turn in the house to open or close the vent: