cng sources

here are some: SafGas CNG LPG for Boat and Yacht Gas Stoves : Fuel Locations

also, there are forum posts about building your own adapter so that you can fill up at an automobile fill station (cheaper and more plentiful)

 

We've always been able to find it in New England.



It's expensive though. If we weren't seasonal sailors, we'd convert to propane.

I believe you can get the tanks UPS through suppliers but I've yet to do it. It's available in town here. The list is a bit dated, the supplier in Camden Maine is Wayfarer Marine. We've gotten it through Corps Bros in the Cape Cod area.