Thanks! I should have mentioned to HardTac, one of the trickier parts of a solid fuel burning stove on a boat, is keeping a positive draft through the flue pipe to keep smoke out of the cabin.
Boats have openings, ports, hatches, cowls and the companionway that can induce positive and negative pressure inside the cabin. Positive pressure, like a forward facing opened hatch, will create a positive pressure in the cabin and tend to work with the flue exhaust.
On the other hand, the companionway, especially with a dodger above, can induce a negative draft in the cabin as wind blowing over the dodger will pull air out of the cabin and any other openings, like your flue pipe.
I find forward facing cowl vents create positive pressure overall, with the companionway open. Sometimes we'll crack a forward hatch as well if we get a back puff.
All stoves, flues, boats, are different and wind velocity and directions will have different effects, so experiment with different hatch openings. I would never use most any combustion heater on a boat while sleeping.
Good luck with your new boat and have fun with the stove.