The cooler will suck in a lot of air, so I would go 10 foot away, but whats 100 CFM compared to
a couple thousand !! 1/20 th. Don't worry about it.
I have installed a bathroom fan with attic fan remote for the lowest noise. I have been rethinking
that it would be all better if I did not vent the fan outdoors, but into the furnace room. Why waste heat and humidity in the winter.
The summer would not be a problem with air conditioning. That would require a pipe to downstairs.