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Old 09-08-2007, 05:55   #46
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Join Date: Apr 2006
Location: Southern Westchester/Northport LI
Boat: Shiva - Contest 36s
Posts: 3,890
My batts have a 500AH capacity and the inverter we have says it's good for surges to 2500 watts, but carries a 1000 watt rating.

I've located 5000btuh units with 4.5 amp rating for less than $150... So the cost to be is the unit. I have plywood to mount it in.

Forget about 8 hous of sleep... It's more like 6-7 max. I don't know how many cycles it would take to maintain the cabin at cool temps.

We typically run the engine in the AM to cool the refer, recharge the batts and make some hot water. I don't know that the high output alternator could put back in an hour what the inverter would draw down, but that's the most we run the engine for cooling the frig.

I may give this a try as it will cost less than $150.

sv shiva

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Old 09-08-2007, 06:28   #47
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Boat: MacGregor 26M Lynx
Posts: 352
You may want to get some starting surg capacitors to help this out. You can also get a 1000W Honda Generator to handle some of your needs.

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