Shouldn't.
Unless the basement is REALLY wet, a 45 pint/day unit (not that big)
will do it easily. I have a basement that is 37' x 100', and it keeps
it bone dry (here in New England). Pipes don't drip anymore, either.
YMMV


dean wrote:
basement is 70' x 25', so its gonna need quite a lot of dehumidifier
electricity.