thanks for the idea palerider. We should be fine with just an exhaust fan since the summer won't be much longer, which would make a $100 kind of not worth it at this point. We needed a fan regardless so we will see how that does and then take it from there. We are trying to keep costs down as low as possible for the simple reason that we have already dumped so much money into this ongoing project that we would like to see some returns before we go spending any more money.