Hi Sam, I installed the Isotherm 3751SP on Mojito (a 1984 35-3). This is the holding plate version, but is 'passively' water cooled through a heat exchanger in the sink drain. Like others, the compressor (variable speed, so very easy on the batteries) is installed in the lazarette on the bulkhead just behind the ice box with plumbing entering the ice box from the sink cupboard. Fitting the through hull was easy; the hull near the sink drain is solid glass, no core.
I would think a DC unit would give you more flexibility; the above unit senses when you're on shore power or engine and charging the batteries and makes maximum use of power available, then switches to an economy mode when on battery only. We had two group 27's and would be fine for a week's cruise with moderate daily use of the engine for charging. Like Jake, I only added insulation to the top of the box. We used to get condensation forming there before we added the refrigeration - there is zero insulation unless someone has changed it since new. Thanks, Tim On Mon, Dec 14, 2015 at 9:37 PM, Sam Wheeler via CnC-List < cnc-list@cnc-list.com> wrote: > Hi everyone, > > I'm new here. I recently purchased the 1984 C&C 35 mk III Spanish > Dancer. My goal was to find a boat that would be comfortable enough to > live on and capable enough to be fun to sail in San Francisco Bay - I'm > extremely excited about this one. I've been sailing since I was a kid but > this is my first (non-dinghy) boat of my own, so I expect I'll be boring > you all with a lot of stupid questions over the next few months. > > First up: Refrigeration. My boat doesn't have it. Has anyone added > refrigeration to a 35-3? How's the stock insulation in the ice chest? Any > suggestions on what works or doesn't? > > Since I think it will be relatively rare for me to spend more than a night > away from the slip and shore power, one thought I had was going with a > holding plate system to run off shore power - maybe even an AC system. > That would keep the load off my batteries, I wouldn't have to listen to the > compressor running as often, and it should store enough cooling in the > plate to last for daysails and short trips away from the dock. > > On the other hand, I'm thinking about the number of projects I have lined > up, and the simplicity and relative low cost of a CoolMatic single unit kit > starts to look pretty appealing. Has anyone used that or something > similar? I'm a little concerned about the effect on efficiency of putting > the compressor (which presumably runs warm) directly next to the box with > what looks like minimal insulation between it and the evaporator. > > Here's the CooMatic kit I'm looking at: > http://www.westmarine.com/buy/waeco-adler-barbour--coolmatic-cooling-conversion-kit--7895881 > > Focusing on air cooling at the moment. I'd rather listen to compressor > noise and draw a little more shore power than put a new thru-hull in. > > Thanks in advance! I've been lurking for a week or so and this seems like > a great community. > > Sam > > Spanish Dancer > C&C 35 mk III > San Francisco > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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