Boat Gas System Checks

Boat Gas System Checks


When Was The Last Time You Had Your Boat Gas System Checked?

If you own a boat then you know how expensive it can be to keep it on the water, what with the mooring fees, insurances as well as the fuel charges. The upkeep of any boat is very expensive.

So when was the last time you had the boat gas system checked?

When you think about it, LPG (Liquid petroleum gas) is probably the most dangerous substance you have on your boat, and yet you will spend more money on cleaning, painting the hull  Fitness Planner  and servicing the engine than you will on your boat gas system.

Boats are not like cars they tend to stay around a lot longer and as such will have old outdated even dangerous gas appliances fitted that have never been checked over.

Your boat gas system should at least be checked once a year by a Gas safe registered boat engineer. Any faults or problems will be brought to your attention and can then be addressed.

Your boat gas system checks that you can do yourself

Depending on what gas appliances are installed on your boat, always make sure they are burning with a nice clean flame when in operation.

Keep the appliance clean, if you notice any dust or dirt on or around the appliance burner switch it off straight away, let it cool down, then give it a good clean.

The gas bottle locker should have a drain hole that discharges out over the side of the boat and not into the hull, make sure the drain is clear and not blocked up.

Get a bucket of water and flush it through just to make sure it is running freely. LPG is a heavy gas, and as such will fall to low level, this is why the drain needs to be clear.

While at the gas bottle locker, pay attention to the gas hose, make sure it does not have any scuffs or cracks, it will have a date stamp on it, check the date, they should be changed every 5 years for safety. I bet yours is over 5 years old.


The gas hob is probably the most used appliance on the boat, used for making the coffee. The burner rings tend to get blocked up after a while. If you notice the flame is a little high on one side and lower on the other, then switch it off, let it cool then give it a good clean out.

Isolation Valves

All modern boats will have gas isolation valves fitted to every appliance, on older boats these may not be fitted, make sure they are all working correctly, light the appliance then turn the isolation valve off. If the appliance switches off, then the valve is still working OK.

The reason you need to check all appliances and isolation valves is corrosion, the same reason you clean the hull, over the course of the season you get a build up on the hull, it’s the same for your gas appliances and valves.


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