Originally Posted by newhaul
What sailmonkey said to do is just a closed swamp cooler so not adding any moisture to the boats interior
. In august the waters under my keel
in port orchard are rarely over 60°f even with an air temp well over 80°f.
Wellllllll, not really. A swamp cooler relies on evaporation to pull heat from the air, the heat of vaporization. Doing so with seawater will cause a buildup of salt
crystals leading to an eventual mess. A radiator on the other hand transfers the heat from the cabin
to the seawater contained in the radiator, and then overboard
. A more compact and clean type of cooling
.....but needs a sufficient delta
of temperature to be efficient.
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