Below a few pictures of the current situation. We looked into a wet exhaust system but that would be too costly and bulky for our size of main engine. Our new generator sets will have a wet exhausts so while at anchor or in port, no exhaust gas will come out of the exhaust on the upper deck.
We're also considering moving the mast about 4 ft. backward. This would eliminate the horizontal part in the exhaust and give us a larger deck space in front of the mast (the roof of the bridge).
Both bridge and mast are made from aluminium.