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post #21 of 21 Old 07-05-2012
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Re: compressed natural gass

Originally Posted by chuck53 View Post
I agree that CNG is not becoming more popular and I don't understand why as it is safer.
I have CNG and like it and have no plans on changing over to LPG. Yes, CNG is not nearly as easy to find, but I have only had to do it once in the 2 years I've had the boat.
Propane is heavier than air and will there for sink. That's why a propane tank on a boat has to be isolated from the rest of the boat and have a low compartment vent to the out side. Otherwise, should the tank have a leak the bilge would fill with Propane and that makes it hard to breathe not to mention what would happen to the boats next to you should a spark find the gas. CNG is lighter than air and will there for, should there be a leak, find its way out of the top of the boat. It doesn't hang around looking for sparks. You also need a solenoid switch in the cabin, to turn off the gas at the tank remotely in case you get things out of control in the cabin, ie grease fire, leak from a fitting, old leaky hose, etc.
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