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Xringer · 08-12-12, 01:43 PM

I'm a bit doubtful the fan causing so much suction inside the house, that it pulls up radon..
But, I can see where some leaks/ventilation configurations might cause negative pressure, all the way down to the basement.

Currently, my Radon alarm meters are displaying 2.6 ppm, a couple of months back, the readings were 2.5 or less..

I'm going up and unplug my little attic fan, and keep an eye on those radon alarms.

08-12-12, 01:43 PM	#31
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	I'm a bit doubtful the fan causing so much suction inside the house, that it pulls up radon.. But, I can see where some leaks/ventilation configurations might cause negative pressure, all the way down to the basement. Currently, my Radon alarm meters are displaying 2.6 ppm, a couple of months back, the readings were 2.5 or less.. I'm going up and unplug my little attic fan, and keep an eye on those radon alarms. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less.. Last edited by Xringer; 08-12-12 at 01:49 PM..