I had a CG courtesy safety inspection two years ago... and as they went through the boat one of the guys asked what the SCUBA tank was for. His buddy seemed to have more experience and told him it was CNG. "Oh, what's that." GRIN I had to chuckle a bit.

I love mine. And yeah, it is a bit expensive, but it seems worth it. It keeps things a bit more simple in the galley area. And dang I use so little gas that it takes about 2-3 years to deplete a tank.