Marine Gas Locker

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Should allow the cylinders to be secured in an upright position
To prevent the liquefied gas entering the regulator and pipework .

Should be vapour tight to hull interior, only openable from the top and have a lid or cover
To prevent potentially escaping gas accumulating below deck.

Should be constructed of materials to give 30 minutes fire resistance
To protect the cylinders in the event of fire or impact damage. Sheet metal of 20w.g. 0.9mm or G.R.P. of 5mm thickness should be adequate.

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Should have an internal drain not less than 19mm at low level to the outside of the hull 75mm above the deepest loaded waterline
To allow any potentially escaping gas accumulating below deck. As the gas is lighter than water it must drain to above the waterline. Generally cockpit drains do not drain above the waterline as they are designed to remove water from the cockpit.

Should be large enough to allow access to regulator and associated equipment
For servicing and maintenance and the exchange of empty cylinders

Should not be used to stow other items that may cause damage, obstruct the drain or ignite leaked LPG

Any opening into the locker should not be situated in the accommodation, engine compartment or fuel / battery spaces

Should not be located near to heat sources

The gas supply should leave the locker by fixed pipework via a bulkhead fitting
To retain the gas soundness and fire resistance of the locker box. Note flexible pipes are not permitted to pass though bulkheads due to the risk of mechanical damage.