Why You Must Turn Off Your Gas Bottles When Travelling

Why You Must Turn Off Your Gas Bottles When Travelling

Why You Must Turn Off Your Gas Bottles When Travelling

It’s common to see reminders that gas bottles must be turned off while towing a caravan. This isn’t just a suggestion – it’s an important safety practice that can reduce the risk of fire or explosion in an accident and during normal travel.

This article explains why you should always turn your Mars caravan gas bottles off before driving and what that means for using gas appliances on the road.

1. What Happens to Your Gas System While Travelling

When your caravan is moving:

  • The van is exposed to vibration, bumps and movement, which can stress hoses and connections.
  • There is an increased risk of impacts or accidents.
  • Gas appliances are generally not designed to be operating in motion, especially open flames.

Leaving gas bottles on means that, if a line is damaged or an appliance control is bumped on, gas can continue to flow.

2. Accident and Fire Risk

In the event of a crash, rollover or severe impact:

  • Gas lines or appliances can be damaged or ruptured.
  • If the cylinder is ON, LPG can continue to escape into the caravan or outside.
  • Any ignition source (sparks, hot surfaces, electrical shorts) could ignite the released gas.

Turning the gas OFF at the cylinder before travelling significantly reduces the chance of gas escaping if the system is damaged in an accident.

Gas regulations and road rules can vary between states and countries, but as a general principle:

  • Best practice, and often a requirement, is to have LPG cylinders turned off while the vehicle is in motion.
  • This is widely accepted as the safest way to tow a caravan equipped with gas appliances.

Always check current regulations in your state or territory and follow advice from licensed gas fitters and relevant authorities.

4. Appliances That Must Not Run on Gas While Driving

With gas bottles turned off, gas appliances should not be operating while driving, including:

  • Gas stove or cooktop.
  • Gas hot water system.
  • Gas heaters.
  • Gas mode on some 3-way fridges.

Fridges may be able to run on 12V power from the tow vehicle alternator and caravan battery while travelling, depending on your setup. Check your fridge manual and vehicle/caravan wiring arrangements.

5. Simple Pre-Travel Gas Routine

Before towing your Mars caravan:

  1. Turn off all gas appliances inside the van (stove knobs to OFF, hot water OFF, etc.).
  2. Go to the gas locker or front box and turn each gas cylinder OFF at the valve (clockwise).
  3. Perform your normal towing safety checks (hitch, chains, lights, doors, awning, steps, etc.).

When you arrive and have set up safely, you can turn gas back on at the cylinder before using appliances again.

6. What About Short Distances Inside a Park?

Even when moving short distances (for example, within a caravan park or to a dump point):

  • It is still best practice to have the gas turned off.
  • Short distances can still involve unexpected bumps, people walking close by, or tight manoeuvres where damage can occur.

Making “gas off before any movement” part of your normal routine removes any grey areas.

7. Refuelling at Service Stations

When you stop for fuel:

  • Gas bottles should already be off from travelling.
  • Do not use gas appliances, open flames or ignition sources near fuel pumps.

This reduces the risk of both gas and fuel vapours igniting.

8. When to Use Gas vs Other Power Sources

As a general guideline:

  • When travelling: Gas OFF. Use 12V for fridge (if wired and recommended by the manufacturer) or leave the fridge closed for short runs.
  • At camp (set up and stable): Gas ON when you need to cook, run gas hot water or other gas appliances, following manuals and safety rules.
  • In storage: Gas OFF. Consider disconnecting cylinders if required for long-term storage and follow local safety requirements.

Summary

Turning off your Mars caravan gas bottles while travelling is a simple action with a big safety impact. It helps:

  • Reduce the risk of gas leaks if pipes or appliances are damaged in an accident.
  • Prevent gas appliances running when they shouldn’t be.
  • Support safe refuelling and towing practices.

Make “gas off, then go” a non-negotiable part of your pre-travel checklist every time you tow your Mars caravan.


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