I was thinking of siting the unit in ER which would shorten the ducts required. I can get to the shower / toilet, the aft cabin and the saloon from ER. The forward cabin would have to remain chilly – only guests up there and there are plenty of doonas (duvets) on board. I would duct the fresh air supply from the cockpit area somewhere and exhaust aft maybe transom area. Early days yet.
Complete mixed bag of weather here, a couple of week ago we have temps of 35 deg C and bush fires, last weekend the temps plumeted to zero with highland snow, hail and gale force winds. They say the summer is going to be long an hot but how would one know?