Are there drawbacks to installing a stronger bath fan?
While this would just be short term use. If you have natural gas, propane or oil appliances, this could &amp; even would suck noxious fumes into the house which could eventually or quickly kill you. That's the bad news.

Other than that, an exhaust fan does, of course, remove heated &amp; cooled air. If you're single I don't see this being a big deal. But, in a family situation this could evacuate the house &amp; therefore waste a good deal of money on a daily basis.

If you're talking about something over 300cfm by a good deal, then partially open doors could slam shut. Like, you don't have your keys &amp; your front door's knob is locked when you take out the trash, retrieve the mail or chat to a neighbor.