When Was Your LPG Regulator And Hose Last Changed?

Advice On Changing Your Butane Or Propane LPG Bottle Gas Regulator And Hose

Butane and Propane bottle LPG gas regulators on boats need to be changed regularly. Despite this information being widely available and every boat undergoing regular boat safety examinations, this seems to not be happening on many boats that we come across on the inland waterways. In our view, this is really quite concerning and surely only a matter of time before something goes badly wrong.

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Following on from our post about solid fuel stove safety on your boat, we wanted to address this issue regarding marine LPG safety. We’d like to ask and encourage everyone reading this to take some action of their own.  Have a look if you can find out how old your own regulator and hose are and see if they need changing over. Once that has been sorted, please share this post with your fellow boaters, so it can create some awareness in the wider community.

How frequently should you change your Butane and Propane LPG regulator and hose?

It is general practice to replace hoses on propane and butane LPG bottles every 5 years. Seeing the relatively small cost for regulators these days, we recommend that both are changed at the same time. Regulators should be changed at least every 10 years, manufacturing dates are usually stamped on both.

Changing Your LPG Bottle Gas Regulator And Hose - Propane
Propane regulators are coloured in RED. Check this before you buy, or we can provide a free regulator with your boiler service.

However, this is a general practice only. If your LPG hose or gas regulator show any signs of damage or wear, you should replace these immediately. You should also do this if you are buying a boat and there is no proof how old your butane or propane regulator is. Hoses and regulators should be stamped with manufacturing dates.

What Type Of Regulators Are There?

Bottled gas for boats in the UK comes in two different types. The most commonly used is propane, but butane is available and still used on some boats. Generally speaking propane is recommended on boats, as it is better able to cope with low temperatures in the winter.

Changing Your LPG Bottle Gas Regulator And Hose - Butane
Propane regulators are coloured in BLUE. Check this before you buy, or we can provide a free regulator with your boiler service.

When changing the LPG regulator on your boat, is is important that the correct type is used. Propane and Butane gases work at different pressures and this pressure is set by the regulator. Fitting the wrong type of regulator could have a severe consequences. This can cause serious injury and damage to property through potential fire or explosion. Hoses work for both gases, but must be of the correct type and stamp labelled. New regulators on boats must incorporate an over pressure shut off device.

How To Change Your LPG Regulator

The only advice we will give at this stage is to have your propane or butane LPG regulator and hose changed by a professional Gas Safe engineer. Crimp connectors or worm drive clips are needed to connect the hose. There are different lengths limits for different types of hose. Connections should be tested after installation. Storage lockers and compartments on boats have many different regulations to adhere to and there are many other things to look out for.

Our engineers will have the necessary training and experience to spot any irregularities as they go along. We can also supply a regulator and hose with every LPG boiler service or other gas related call out, if yours need changing. This way you can be sure it’s the correct type and up to current standard.


This article about how often you should change your propane or butane LPG bottle gas regulators is meant to give some general advice only. It is by no means exhaustive and regulations change all the time. This type of advice is widely available. If you need any gas related work carried out on your boat, you should hire a gas safe engineer. It is illegal to work on any gas installation without being licensed to do so.