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Old 22-04-2010, 19:04   #31
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Join Date: Apr 2009
Location: Fort Pierce, FL. Texas Roots
Boat: 82 Present, 13 ft dinghy
Posts: 490
oK guys. I am a light weight on this issue. I have an oversized front opening home style 12/110 Norcold that is 27 years old. I strongly suspect it is less than efficient. It turns the galley into a cave and if it were gone the whole place woule open up + added counter top.

I have (product of soon to be divorce) a larger bar fridge that pulls 1.4 amps at 110 which is almost 13 amps at 12 volts. I have a 2.5 kw inverter with a 3.5 kw generator. I plan to add a chest freezer ($175) @ 1.7 amps. Right now I have 2, 235 amp 8ds and I might have to add another, but I have not tested the system.

Now, I have it together on the airconditioner (13 run amps) it is only to be used while the generator is running or plugged in at the dock. Now while on the hook, I plan to load the freezer with dry ice stacked at three different levels wrapped in bubble wrap whit additional bubble wrap at the top, with the lid duc taped shut for additional protection against leakage. The fridge I will have frozen gallon containers of water in it and start the trips(s) with duct tape against leakage and maybe dry ice too.

First days out I will live out of an igloo and do all I can not to open either freezer or fridge until absloutely necessary.

Thoughts and or suggestions that might help make this system work for a couple of weeks at a time? Any other tricks shared will be appreciated. You see I get really super ribeyes out of fort Worth @ $4 a lb so I will have about about 100 of em vacumm packed and frozen. might be good trading stock at the islands.

I hope I do not have to bite the bullet and do a marine system,,Thoughts. I would much rather have underway cable tv... Yeah I know but decadence is good...right??

'Da Mule
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Old 22-04-2010, 19:24   #32
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Join Date: Apr 2008
Location: Hawaii, South Pacific bound
Boat: Islander 36
Posts: 1,196

If you're still weighing options, one more...
Sterling compressor ( kick on power saving. Lot's of stuff about them on this forum.

I have, embarassingly, over-fridged my boat. I first rebuilt my box, then (not knowing what I know now) decided to back up with a stand alone unit. I do love my Fridgefreeze, and they're a great company. But I simply didn't understand what I was doing wrong to make my built in box so unreliable. By the time I had figured it out, I had a built in box and a stand alone. OK. I still have back up or seperate freezer. Like I said, love it.

Then I dropped the dock lines and headed south. 2 weeks of sailing/passagemaking with a total of 109 hrs of motoring. Let me keep this short. Built in box unit died. So I'm sitting there thinking about which way to go and come acrossed the Sterling compressor. C02 is the refriderant. Very low power draw. So I bought one to bring me back up 2 reefer units.

OK, still trying to make this short. Old unit needed 1 wire reconnected. Works perfect. That box now has it's own backup. The Sterling unit sits on top of the box and cold is ducted (it actually moves air). Negative of the Sterling is the sound I have to listen to because of where it's positioned. When I'm off of the boat or motoring, the Sterling (and the Fridgefreeze) is/are used.

Point is, check out Sterling compressors on this forum.

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