In uk.d-i-y, jgharston wrote:
I'm planning on installing a fan to create an active
through-draft through the house. Should it be mounted
to pull air into the house or pull air out of the house?

pedant
However you mount it, it will do both. Air will either flow in through
the fan and out through open doors, windows, and other apertures, or the
other way round.
/pedant

I think the main issue would be the outside air coming in - you'd
probably prefer not to have that concentrated near the fan. So "out"
would be the best choice.

--
Mike Barnes