Quote:
Originally Posted by where2
If you're pulling suction on both inlet and outlet ducts without the furnace blower running, aren't you likely to pull dust in from the outlets and deposit it in the ducts only to get launched when you go into heating mode with the furnace in the fall?
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Not sure, my thinking was that it would almost clean the ducts with the reverse air flow and dump the dust into the attic, not that I don't have enough up there already
I may get an initial shower of dust when the furnace first starts up but that will be nothing new. Sort of like when you turn on your cars AC for the first time in the summer and all you get is hot air, dust and dead bugs out of the vents