Island Time 1,235 Posted November 4, 2013 Share Posted November 4, 2013 Hi everyone, I've gone on a bit about this before, but today I've put a whole lot of new stuff on our site about boat fridges and freezers, and the new product range is now available. I'm happy to talk thru any projects any of you have, and custom design a solution. Check out these 3 links; Our Experiences with OZEfridge http://www.neptunes-gear.com/pages/refrigeration Cabinet design considerations http://www.neptunes-gear.com/pages/refrigeration-cabinet-considerations And then the new product lists http://www.neptunes-gear.com/collections/refrigerators-and-freezers-for-boats Have cold beer and Ice cream on your christmas cruise, without flattening your batts! Cheers Matt Link to post Share on other sites
John B 106 Posted November 4, 2013 Share Posted November 4, 2013 Thats interesting how the oze guy uses the freshwater tanks for cooling. I always thought the NZ model that uses the through hull tube to salt was a good option but I've been hearing a few stories of blockages due to algae and barnacles and the like. Which is logical. Link to post Share on other sites
Island Time 1,235 Posted November 4, 2013 Author Share Posted November 4, 2013 yep, water cooling, also known as "keel cooling" has been traditionally salt water. it should have a strainer, anodes etc, and will need cleaning periodically. the fresh water solution is much easier, lower power draw and less maintenance. no thru hulls either! Link to post Share on other sites
rigger 47 Posted November 5, 2013 Share Posted November 5, 2013 yep, water cooling, also known as "keel cooling" has been traditionally salt water. it should have a strainer, anodes etc, and will need cleaning periodically. the fresh water solution is much easier, lower power draw and less maintenance. no thru hulls either! Keel cooling does not bring sea water inside the vessel, see http://www.duramaxmarine.com/heat-duracooler.htm for an example - so no strainers needed - though there are thru hull fittings of a sort to mount the coolers. Plate coolers / tube coolers - these bring sea water inside the vessel and require a strainer, and are prone to blocking in some areas - Tauranga harbour being one place. One vessel I know uses the ballast water tanks for engine cooling - great in winter - not so good in summer if the vessel is working hard. Link to post Share on other sites
Island Time 1,235 Posted November 5, 2013 Author Share Posted November 5, 2013 Rigger - terminology! You are talking about a heat exchanger, solution, and are of course technically correct! In my experience, many cruisers call anything using sea water "keel cooling". Even the heat exchanger ones can still have issues with external fouling, and, as you said, require hull penetrations! The fresh water cooling is simple, and virtually maintenance free. Link to post Share on other sites
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