There's a large starboard hatch on the seat, which I intend to use for exhaust.
This requires that the area be separated from the rest of the boat, which I've partially done with the bulkhead and the simple hanging of carpet-pieces to keep the hot air from recirculating.
I have thought to add a forced blower(bilge blower) to exhaust through that, but I'm going to see how the "simple" solution works first.
If I had electricity where I store my boat, this would've been decided before now.