I saw those as well. The Vent-sol-air is kind of what I am looking for but it gets horrible reviews. The other ones appear to be more aligned with the sailboat cabin thing and would require a lot of fab work to get to work with a towable canvas cover. What would be sweet would be a fan that mounts through the transom and uses solar energy from a flexible solar panel attached to the cover. Maybe I should start looking for a high quality through transom ventilation fitting then engineer up a way to vent the engine compartment from it. If I opened the 4" deck plate while covered it should draw air through the cover, into the bilge (through the deck plate), through the engine compartment and out the back. Bakes
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