Join Date: Mar 2006
Location: New England
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Maine Sail sails a Canandian Sailcraft 36T...not a catamaran. Don't really know where you got the idea he had a catamaran. Nope...doesn't.
The problem with heating a catamaran is the amount of space you have to heat. Most sailboats have lousy insulation, but the multihulls often have foam or balsa cored decks that are fairly thick, which can help a bit. You'd obviously need to add additional insulation, and cover the ports and cockpit entrance with something to prevent them from leaking all the heat out.
Once the boat is insulated to a reasonable level, I don't see why a forced air system wouldn't be able to keep it reasonably warm. However, a forced air system large enough to heat a catamaran's two hulls and salon is going to be fairly expensive.
Would your boat be in a slip or on a mooring. If you're in a slip, the obvious solution would be to use electric heaters, preferably the oil-filled radiator style ones. If you're on a mooring, which is more typical with catamarans.... you'd really need to go with diesel or preferably propane forced air heat. The reason I think propane would be better than diesel is that on colder days, the diesel fuel heaters may be harder to start—especially if you've let the boat sit unheated for a while.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
óCpt. Mal Reynolds, Serenity (edited)
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StillóDON'T READ THAT POST AGAIN.