One of the reasons I went with metho.

Like Morning Bird, it was part of the reason we changed from LPG to metho on the latest boat.

I have one somewhere in my paperwork. There is a tick in the Cat 1 compliance certificate dated 2003. In other words totally meaningless. All sorts of damage could have occurred since then. I have never been asked what stove is fitted by insurance companies.

Is a gas certificate required for a set up where no piped LPG is used ?
For example: I just use a small ($20) camp stove with a butane cylinder. When the stove is not in use the butane cylinder is always removed and placed in the external gas compartment.

Ramona said..

I believe not. They are great little stoves and were supposed to have been banned from sale after an accident where gas escaped where that flimsy lever did not lock down correctly. Not sure what happened but they remain on sale everywhere. I think they are safe to use as long as you release the canister straight after use.

The stoves were banned and were all removed from sale, but then by some administrative trick with a magic pen there were all deemed to be safe and were allowed to put back in stock and for sale.

I went through the process a couple of years ago with a new build - we'll, more like finishing off an old built. T'was a bit of a pain, but not too bad. I'm glad I did because it forced me to establish a solid safe system. Having said that, there's flaws in the rules.
My gas bottle is stored in a locker on the deck, but it has to be ventilated - no probs, drilled a few holes, but the holes can't be within a meter of any port and they were. The port was below and around a corner and there were semi blockages along the way and little to no chance gas could find its way there let alone go anywhere inside because it's a port I rarely open. But I had to bolt it closed to get the cert! Also had to thread about 6 meters of coated copper pipe through multiple bulkheads, lockers, plumbing, exhaust piping and other obstacles while avoiding heat sources and friction points and staying as straight as possible.
Doing this and bending the pipe as I went was a very tricky process. I had to because there was a living space - bed - in between and you can't have pipe joins in these areas. And for some reason I can't remember, maybe the same reason, I could not have flexible pipe.
Also installed a gas alarm, but can't remember If that was in the rules or an added safety measure. That was tricky too, because I have multiple bilges all separated, so gas will not flow to a single lowest point in the boat where you'd normally place the sensor.
So I had to guess the most likely source of a leak and place it near there - under the stove. So, you see, I was then glad the 6m was solid copper and not joints, otherwise I'd have to put more sensors in.
My gas dude kept saying, "no can't be done, too hard" so I had to keep finding the solutions for him. Now that was frustrating. The rules are online somewhere and aren't difficult to understand.
Now the silly bit: behind the stove that merrily swings on its gimbals as the boat rocks along are several pipe joins, bits of flexible gas hose and a stop cock. Apparently all within the rules.
So, I added timber blocks to protect all the piping at what is its most vulnerable point.
If nothing else, the whole process made me aware and vigilant in how I use gas and that's a good thing.