I need some help with my frozen bathroom vent (outside flapper is frozen shut). We've had cold weather before (last night it was -2F) and this has never happened.
The bathroom vent goes through the attic and vents out the wall (gable wall?). The duct is insulated.
Any ideas?
The bathroom vent goes through the attic and vents out the wall (gable wall?). The duct is insulated.
Any ideas?