In all my years of hvac, I never even guessed such a POS (piece of sh...) could exist at a cost over or near $100! Yes, I'm on my 2nd one! I may try and fix the first one, again, someday.
They (solar vents) only move enough air to maybe keep mildew from growing when the boat is closed up in mild weather. Other then that, it's just a novelty imho
"Hey and see that?" It's a solar powered fan" *gloat gloat*
How many solar type vents would your boat need for it to have real ventilation? you don't want to know! (4 Xs the volume an hr)
Sailboat designers apparently don't or didn't consider ventilation vital to design or, discount it I guess; as a potential reason for sinking. Maybe newer boats ventilate better, but older boats are just ovens for baking people. I realize this is common to all boats with decks or and or cabins, not just sailboats
Oh! How I would love to get a chain saw and start cutting! Hinge the whole cabin top off my boat and so many others! (then watch a storm take it away)
Another example of poor ventilation is your home bathroom. If it were vented properly you would not get steamed and wet walls. But, if it were vented properly your energy bills for heating and cooling would go way up.
So, here we are, with to that close, blanket like feeling in our boats unless it's really nice and breezy outdoors. Nicro vents and those like them are not going to solve that.
My solution to being comfortable in my boat... WAIT FOR COOLER WEATHER!
A few facts about ventilation.
Odors are gas like and not easily removed by any amount of air flow.
humidity also will still move into a space that is ventilated.
"air treatment" is the act of recirculating air, using filters, heat and cooling to make it healty or comfortable. Example; clean rooms for industry and medical. not your home although the HVAC trade tries.
Was this was a rant?