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Old 19-10-2012, 17:42   #1
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CNG Gas

I'm in the process of purchasing a new(to me) boat. It has a CNG stove/tank system. While I appreciate the positive attributes of this system, the boat is going to the Caribbean-with us aboard!-in a year. Question: While I know propane is abundant in the Carib, I don't know about cng. Does anyone have any experience/info on this topic? Thanx in advance! Cptn Happy
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Old 19-10-2012, 18:31   #2
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OTTER has CNG as well....I like CNG for safety, etc....but it is hard to find....I don't have info outside Norfolk, Va, but if you're passing thru the Ches/ICW ENR south, I can provide contact info. Bob
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Old 19-10-2012, 19:45   #3
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Re: CNG Gas

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Originally Posted by Cptn Happy View Post
I'm in the process of purchasing a new(to me) boat. It has a CNG stove/tank system. While I appreciate the positive attributes of this system, the boat is going to the Caribbean-with us aboard!-in a year. Question: While I know propane is abundant in the Carib, I don't know about cng. Does anyone have any experience/info on this topic? Thanx in advance! Cptn Happy

I looked at a boat that used CNG, but I would have had to drive 5 hours to get it, and that was just too big a drawback. How much would it cost you to convert to propane? If you otherwise like the boat and it's a good deal, you might look into that. Are you new to boats? Switching to propane requires great care to do it safely ...
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Old 20-10-2012, 04:57   #4
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Re: CNG Gas

Converting CNG to LPG
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Old 20-10-2012, 16:36   #5
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Re: CNG Gas

G'Day Happy,

In case you were not aware: not only is CNG difficult to obtain as a cruiser, but the amount of fuel contained in a tank is vastly less than an equivalent sized LPG tank. Reason,of course, is that the CNG while compressed is still a gas, while LPG (liquid petroleum gas) is, well, a liquid and far denser.

The safety aspect of CNG is attractive, but the practicalities rule it out for cruising beyond local waters.

However, converting burners isn't difficult, and most manufacturers offer the correct sized jets for LPG.

Cheers,

Jim
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Old 22-10-2012, 19:38   #6
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Re: CNG Gas

Thanks for all the feedback. I have since my original post purchased the boat. Since I have used successfully a propane system in the past and, more importantly, suspect cng will be hard to find down island, I'm planning on converting to an lpg system. Anyone interested in a cng stove/oven?
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Old 22-10-2012, 20:18   #7
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Perhaps the bottles and valves? Where are you located?
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Old 23-10-2012, 00:07   #8
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Re: CNG Gas

Quote:
Originally Posted by Cptn Happy View Post
Thanks for all the feedback. I have since my original post purchased the boat. Since I have used successfully a propane system in the past and, more importantly, suspect cng will be hard to find down island, I'm planning on converting to an lpg system. Anyone interested in a cng stove/oven?
Can it not be converted? What brand is it?

I use to maintain a CNG station. The cost to run a station barely pays the maintenance costs, unless it is a very high volume site that runs constantly. We had dedicated power lines running the 2 compressors with 100hp motors, which ran the 4-stage 4000 psi compressors. The electric bill was outrageous. If both compressors ran at the same time we would get an extra charge for the high draw.
Propane is simple and EZ to handle.
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Old 27-10-2012, 19:49   #9
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Re: CNG Gas

I'll check out the details on the stove/tank etc when I return to the boat in a week or so.
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