Campervan gas stove on

FREE Safety Guide to Campervan Gas Regulations UK 2023

Installing gas in your campervan can be daunting and dangerous Therefore, you must follow the BS EN 1949:2021 campervan gas regulations, guidelines and procedures to ensure you and your occupants are safe.

However, there’s a lot of outdated, misleading and untrustworthy information out there. And when it comes to installing gas, you need information you can trust!

So, at Vandercamp Adventures we’ve done the hard work for you.

This post incorporates the current campervan gas regulations and qualified gas engineer knowledge. Undoubtedly, an informative and reliable source of information for anyone installing gas to their campervan.


Please note that all the information provided in this post is accurate as of November 2023.

However, please be aware that the regulations regarding gas installation are subject to change. Therefore, it is important to stay up to date with the latest regulations to ensure safe and proper installation.

This post is based on the latest regulations and information. We own a copy of the BS EN 1949:2021 regulations. 

The reader must ensure that they comply with all relevant laws and regulations when installing gas in their campervan. Always seek the advice of a qualified gas engineer or other professional before undertaking any work on your campervan gas system.

This post may contain affiliate links. Meaning, if you make a purchase after clicking one, we may earn some commission. This pocket money will help Vandercamp Adventures continue to grow at no extra cost to you. It’s a win win situation!! Learn More…

9 Frequently Asked Questions

Firstly, because campervan gas regulations and requirements are such a grey area, we thought we’d start by answering the 9 most commonly asked questions:

1. What are the current campervan gas regulations?

The most up to date regulations covering LPG gas in campervans are: 

BS EN 1949:2021 

Gas Safety (Installation & Use) Regulations 1998 (GSIUR).  

See the Regulations section below for more details and to download a copy.

The standards are typically reviewed every 5-10 years.

2. How much gas can I legally carry onboard my campervan?

The BS EN 1949:2021 states the maximum amount of cylinders within a cylinder compartment is two, with a capacity of 16kgs each. Please refer to the cylinder compartment regulations below.

However, LPG tanks are different. They have restrictions but only when the gas is used for the propulsion of the vehicle. Therefore, we recommend installing an underslung gas tank that is designed for your vehicle.

Underslung gas tanks designed to fit your vehicle are available at Autogas 2000 Ltd and the LPG Shop.

3. Can I install gas in my campervan if I’m not a qualified gas engineer?

Anyone can install gas to their campervan as long as it’s for personal use only, and they are ‘competent’ enough to do so. 

Competent Definition

Having the necessary ability, knowledge, or skill to do something successfully.’

Gas Safety (Installation & Use) Regulations 1998 (GSIUR) states:Competence is a combination of practical skill, training, knowledge and experience to carry out the job in hand safely, and ensuring the installation is left in a safe condition for use. Knowledge must be kept up to date with changes in the law, technology and safe working practice.’Guidance 3(1)–(2)

In other words, someone competent would be expected to install gas to the same level as a gas engineer and adhere to current requirements. 

However, suppose the camper is being rented out. In that case, anyone who does work on the campervan needs to be competent, be aware of the current standards and hold relevant qualifications. Therefore, a qualified gas engineer registered with Gas Safe would be required.

Furthermore, if you’re renting out a camper, you are classified as a landlord. So, an appropriate certificate must be issued (we cover this below).

In fact, you can’t rent out your camper without this certificate.

4. Does installing campervan gas for personal use mean you don’t need to use a qualified gas engineer or have the installation signed off?

According to law and regulations, this is correct! However, this doesn’t mean you can do what you like (like using a garden water hose for a gas pipe!). You must follow the current campervan gas regulations to ensure the system is safe.

In the unfortunate event of something going wrong or if there’s an accident, the installer (you!) would be liable. In this case, you must prove your competency via inspection of your installation. As a result, you may face prosecution if the gas system doesn’t meet the regulations and is deemed unsafe.

This is not to discourage anyone from installing gas themselves. It’s purely to make sure people are aware of the implications and to promote health and safety.

Therefore, with the correct help and guidance, anyone can install campervan gas correctly and safely. However, if you’re not confident or competent, we strongly recommend using a qualified gas safe registered engineer.

5. If I install my campervan gas system, will a gas engineer sign it off?

Yes, of course! However, some gas engineers may refuse to sign off other people’s work because it would make them liable

Nevertheless, there are plenty of engineers who will sign off other peoples work. Additionally, some gas installation companies offer this service.

The engineer must be Gas Safe registered and qualified to work on campervan gas and LPG. In addition, the engineer will need to carry out a full inspection of the system to ensure it meets current regulations. Subsequently, they will issue a gas certificate.

Find a Gas Safe registered engineer here.

6. What gas certificate is required for renting out a campervan?

Gas Safe answer: ‘A Gas Safety Record similar to the ones used for Landlord gas safety checks in permanent dwellings would be suitable. The vehicle registration would be recorded instead of a property address.’ 

A record shall include:

Regulation 36 – Duties of Landlords

  • (i) the date on which the appliance or flue was checked; 
  • (ii) (ii) the address of the premises at which the appliance or flue is installed; Vehicle Registration instead of permanent address
  • (iii) (iii) the name and address of the landlord of the premises (or, where appropriate, his agent) at which the appliance or flue is installed;
  • (iv) (iv) a description of and the location of each appliance or flue checked; 
  • (v) (v) any safety defect identified; 
  • (vi) (vi) any remedial action taken;
  • (vii) (vii) confirmation that the check undertaken complies with the requirements of paragraph (9) below;
  • (viii) (viii) the name and signature of the individual carrying out the check; and 
  • (ix) (ix) the registration number with which that individual, or his employer, is registered with a body approved by the Executive for the purposes of regulation 3(3) of these Regulations

7. Is a DIY cylinder compartment acceptable within a campervan, or does it need to be a pre-fabricated metal compartment?

DIY gas lockers are acceptable as long as they comply with BS EN 1949:2021.

The cylinder compartment regulations are detailed below.

8. How do I find a qualified gas safe engineer?

Whether you need a qualified Gas Safe engineer to carry out gas installation work or sign off your existing gas installation, there are many ways to find one.

One way is to search forums and Facebook groups to find people who’ve had gas work carried out on their campervan and recommend the engineer. Although, be aware that unqualified engineers do advertise on these platforms. Therefore, it’s important to check the engineer is qualified and Gas Safe registered (this is covered in the next FAQ)

The best way is to use the Gas Safe Register website. There, you can find local gas engineers and see if they’re qualified to work on campervan and LPG gas systems.

Simply go to the Gas Safe register website and follow these steps:

– Under ‘Find and check’, make sure Find is selected.

  • – Type your postcode into the search box.

– Make sure ‘Domestic’ is selected and click ‘Search’.

Gas Safe find and check

– Select ‘Liquid Petroleum Gas (LPG)’ under ‘Fuel Type’.

– Click the dropdown ‘Appliance Type’ and select ‘CARAVANS pipework LAV LPG (CORE)’. Ensure you press ‘Filter Results’ at the bottom.

– Click ‘Update Results’.

Gas Safe find an engineer

– Once the page has loaded, scroll down and you will see all the companies relating to your search criteria. They include the company name, address, registration number, phone number, email and distance from your postcode.

– Find a company and click ‘View Services’.

Gas Safe company details

– Here, you will see the services the company is qualified to work on. Check that ‘CARAVANS Pipework LAV LPG (CORE)’ is selected under the LPG column.

Gas Safe engineer details

– Additionally, go < Back to resultsand click on ‘View Engineers’ this will show you an image and details of the engineer/s employed by that company.

Gas Safe Engineer check

9. How do I check if an engineer or business is Gas Safe registered?

Gas Safe answer: ‘Check if a business is Gas Safe registered on our website. This is just because we do get unregistered gas workers advertising on internet forums and Facebook unfortunately, so we would just want to ensure that consumers are aware of the importance of checking their registration before they use them.’

Simply go to the Gas Safe register website and follow these steps:

– Go to the Gas Safe Register home page and select ‘Check’ .

– Enter your search term and click ‘Search’.

Gas Safe Check

– From here you can check all the details of the engineer or business.


The rules, regulations and guidelines don’t mention the word ‘campervan/s’. So, whats defined as a campervan?

Below are the definitions of leisure accommodation vehicles mentioned in the rules, regulations and guidelines. 

LAV (Leisure Accommodation Vehicles)

Tourers, motor caravans, motorhomes, and caravan holiday homes are all considered as leisure accommodation vehicles. An LAV is a type of living space that can be occupied temporarily or seasonally, and it is designed to meet the construction and usage requirements of road vehicles.

The definition of ‘LAV’ covers touring caravans that are generally towed behind a suitable vehicle and motor caravans, which by their nature are self-propelled. Holiday homes are also covered by the definition of ‘LAV’. These are specifically designed for holiday accommodation and may come in various designs, from the traditional caravan to ‘log’ cabins.

Technical Bulletin 063 (Gas safe register) 19 Aug 2010


Mercedes sprinter campervan in a field
Photo by Gabriel.F via Shutterstock

Campervans are self-propelled vehicles with living and sleeping accommodation. They are typically converted from a van, so they’re smaller and simpler than motorhomes (motor caravan). 

Motor Caravan (Motorhome)

Motorcaravan / Motorhome parked in a field
Photo by Lucas Favre via Unsplash

Motor caravans are self-propelled leisure accommodation vehicles with coach-built bodies. They have seats, a table, sleeping accommodation (which may convert from the seats), cooking facilities, a toilet and storage facilities.

Typically, motor caravans are much larger than campervans and are made by professional companies.

Tourer (Caravan)

Old touring caravan in a field
Photo by Kristaps Ungurs via Unsplash

Caravans are leisure accommodation trailers, towed behind a suitable vehicle.

Caravan Holiday Home

Static Caravan holiday home caravan park
Photo by Joingate via Shutterstock

Transportable leisure accommodations that are moveable but do not meet requirements for use on the road. 

BS EN 1949: 2021

Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles.

BS EN 1949:2021

The BS EN 1949:2021 regulations replaced the previous BS EN 1949:2011+A1:2013 version, which is now withdrawn.

It details the health and safety requirements of the installation design, components, appliances, connections, pressure, cylinder compartments, flue, tightness and testing. 

Not included in these British standards:

  • Portable appliances with their own fuel source and are not part of the original installation. (E.g. portable gas canister stove);
  • Installation of LPG appliances for commercial use;
  • LPG installations on boats;
  • Gas supply equipment (gas pump) that is not part of the vehicle body;
  • LPG appliances that are not part of the vehicle body;
  • Water and electrical supplies and connections to the appliance (s);

A copy of the BS EN 1949:2021 regulations can be purchased online, here.

Alternatively, save yourself a few hundred quid! All the campervan related information from the regulations, is detailed below.

The Gas Safety (Installation and Use) Regulations 1998

GSIUR deals with the safe installation, maintenance and use of gas systems, including gas fittings, appliances and flues, mainly in domestic and commercial premises.

Gas Safety (Installation and Use) Regulations 1998

The regulations apply to natural gas and liquified petroleum gas (LPG), as defined in the Gas Act 1998 (fifth edition 2018).

However, not all gas work on self-propelled vehicles falls under the GSIUR unless they are hired out to the public.

Additionally, the GSIUR includes guidance on defining competency (See Regulation 3 – Qualification and supervision, download the document below). 

Relevant information from the regulations with respect to self-propelled vehicles (Campervans):

Regulation 2 (General interpretation and application)

(5) Nothing in these Regulations shall apply in relation to the supply of gas to, or anything done in respect of a gas fitting on – 

(a) a self-propelled vehicle except when such vehicle is –

(i) hired out in the course of a business; or 

(ii) made available to members of the public in the course of a business carried on from that vehicle

Regulation 3 (Qualification and supervision)

(1) No person shall carry out any work in relation to a gas fitting or gas storage vessel unless he is competent to do so. 

View a copy of the Gas Safety (Installation and Use) Regulations 1998.

HSE – Gas safety in caravans, including leisure accommodation vehicles and residential park-homes

Provides information and advice on the application of the Gas Safety (Installation and Use) Regulations 1998 (GSIUR) to leisure accommodation vehicles and residential park homes, and enforcement demarcation.

Gas safety in caravans, including leisure accommodation vehicles and residential park-homes

Specific to caravans (tourers), motor caravans and caravan holiday homes.

The HSE information can be found here:

Manufacturers Instructions

Autogas gas tank manufacturers instructions
Autogas 2000 Ltd underslung gas tank manufacturer instructions. See our post on how to install it.

All gas components, materials and appliances will have manufacturer instructions on installing them to a gas system. Therefore, you must read and adhered to these instructions.

Gas Safety Organisations

Gas safe register logo
Photo by Gulpa via Shutterstock

Gas Safe is the gas registration body covering the UK, Isle of Man and Guernsey. By law, all gas engineers must be on the Gas Safe Register.

Gas Safe replaced CORGI (Council for Registered Gas Installers) in April 2009.

Types Of Gas

Campervans use either Propane, Butane or LPG.

Butane and propane Calor gas bottles
The green Calor gas bottle is Propane and designed for patio heater use.

Propane and butane are very similar. Firstly, they’re both members of the LPG family. Also, they’re flammable hydrocarbon gases from natural gas processing and oil refinery. 

The gas is liquidised into cylinders (AKA bottles) through pressurisation. Once the liquidised gas is released from the tank, it vaporises into gas. 

However, they do have their differences:


Propane bottles have no standardised colour, but typically they’re red or sometimes orange.

47Kg Propane Calor gas bottles connected to a static caravan
Photo by RichardJohnson via Shutterstock

Propane is best suited for use in colder climates because it will still vaporise into gas when the temperature is as low as -42˚C (boiling point)! Therefore, propane will remain a liquid if the temperature is below the boiling point.

This ability to vaporise at low temperatures means it’s better suited to external storage and use. In addition, propane produces more heat than butane in cold temperatures and is, therefore, more efficient.

It’s widely used in caravan parks, commercial and domestic properties. Also, it’s a good fuel source for campervans because it’s cheaper and more efficient than butane. 


Butane bottles have no standardised colour, but typically they’re blue. However, yellow and white are also common.

Campingaz bottles
Photo by Ralf Liebhold on Shutterstock

Butane is better suited to warmer climates because it will only vaporise into gas when the temperature is above -2˚C (boiling point)! Therefore, butane will remain a liquid if the temperature is below this boiling point.

As well as Calor gas bottles, it’s available in Campingaz bottles that are much smaller, so they’re ideal for camping and smaller campervans. Therefore, butane is best suited to leisure trips for use in cooking, heating and BBQs. 

Butane is a much safer gas when stored because it liquefies easily. Therefore it’s easier to contain, with lower pressures than propane.


LPG (liquefied petroleum gas) is a mixture of propane and butane. It is also liquified into a tank through pressurisation and vaporises into gas once released from the tank/cylinder. 

LPG filling pump connected to campervan gas bottle

However, the amount of each gas used to make LPG depends on the location. For example, colder climates will use more propane, whereas warmer climates will use approximately 50/50. Thus, resulting in different boiling points.

LPG is stored in an underslung gas tank or an internal LPG gas cylinder on a campervan. Additionally, the gas itself is much cheaper than propane and butane and widely available in the UK and Europe.

Underslung LPG tank installed underneath a VW T5 van
Underslung gas tank installed to a VW T5 campervan

Further Reading | How to install an underslung LPG gas tank to your campervan

Travel Limitations

Whether in a van, a self-built campervan or a motorhome, travelling with liquid gas has its rules and limitations.


Ferry companies require that you adhere to their rules when carrying gas onboard your campervan. 

Individual ferry companies detail rules on their websites, but you’ll find that most of them have the same requirements. 

Vehicles parked inside a ferry
Photo by Oleg Kozlov via Shutterstock

This information is sourced from Stena Line, Brittany Ferries and Irish Ferries websites. They require:

  • Propane and Butane is used for private use only (caravans/camping etc.)
  • The gas is used for lighting, cooking and heating purposes only.
  • A maximum of 3 cylinders with a combined weight that does not exceed 47kg.
  • The gas cylinders must be adequately secured against movement.
  • They’re stored away from any sources of ignition and heat.
  • The gas flow MUST be shut off at the cylinders.


The gas MUST be turned off at the bottle/tank. Additionally, it must be accessible for the staff to inspect if required. 

Vehicles parked inside the Eurotunnel train
Photo by M G White via Shutterstock

The Eurotunnel website states:

2.5.6 The maximum permitted volume and quantity of flammable gas cylinders and tanks per vehicle is:

For portable containers (cylinders/bottles, etc.): Maximum of 47kg per cylinder and no more than 50kg per vehicle if more than 1 container;

For fixed containers (tanks): Maximum of 47kg per container and no more than 50kg per vehicle if more than 1 container;

Fixed containers must be no more than 80% full. The capacity of the container will be checked by Eurotunnel staff.


The campervan gas regulations state that campervans can carry 2 cylinders with a maximum capacity of 16kgs each within a cylinder compartment. See the cylinder compartment regulations below for more details.

A VW crafter DIY campervan

After extensive research and digging, we cannot find any restrictions on the legal amount of LPG that you can carry in a campervan. Although, the only information available is related to businesses transporting LPG bottles.

Also, it’s advisable to turn off the gas at the cylinder/tank when you’re driving. 

Gas Safety

As you know, using gas in a campervan can be dangerous. Therefore, you must follow these safety measures.

Carbon Monoxide Detector

Carbon monoxide detector attached to the ceiling of a campervan
Carbon monoxide detector expiry date

Kidde – Battery Powered Carbon Monoxide Detector

Carbon monoxide (CO) is a colourless and odourless gas produced by a malfunctioning gas appliance. CO is poisonous! At best, breathing it in can cause flu-like symptoms; at worst, it will cause you to pass out or even kill you.

Therefore, you must install a CO detector in your van. So that it functions correctly, test it weekly and replace it before the recommended expiry date.

Fire Protection

Campervan Powder Fire Extinguisher (600g)

When installing gas in your camper, you must-have a fire extinguisher on-board. Although the dry powder type (blue label) is suitable for gas and electrical fires, it can ruin the inside of your van. On the other hand, water mist fire extinguishers are also suitable (yes, even on electrical fires) and won’t cause as much damage.

Additionally, fire blankets and smoke detectors are other forms of fire protection.

Be sure to check and make a note of their expiry dates; replace them before this date. 

Also, test the smoke alarm weekly and replace the batteries before they run out to ensure it’s functioning correctly.

LPG Sticker

LPG vehicle sticker
Photo by seeshooteatrepeat via Shutterstock

Campervan LPG Warning Sticker

There are no requirements for campervans with gas onboard to display an LPG or compressed gas sticker to the vehicle’s exterior, unlike work vehicles.

Although, it is highly recommended because it notifies the emergency services that gas is present if your vehicle is involved in a road accident.


75mm Campervan Gas Drop Out Vent

Cylinder compartments must have drop-out floor vents for any leaked gas to escape. LPG is heavier than air, so it falls to the floor, forming ‘puddles’ of gas that will escape out of the floor vent. 

Additionally, although it’s not required, we recommend a floor vent is fitted below any fixed gas appliance (e.g. 3-way fridge, space heater).

It’s a good idea to have other forms of ventilation in your camper to ensure any unburned gas can escape safely. Our campervan ventilation guide will give you some ideas on the many types of ventilation.

Further Reading | The Ultimate Campervan Ventilation Guide

Gas Locker

Gas bottle locker

Campervan Gas Bottle Storage Locker

A gas cylinder must be contained inside a sealed compartment, separating it from the living space. Most motorhomes and caravans have a compartment accessed from the outside; however, this is not always possible in a self-build campervan. 

This compartment needs to meet specific requirements for it to comply with regulationsFor this reason, specifically designed gas lockers are available to buy. Discover what regulations apply to gas storage lockers here.

Here’s a handy campervan gas safety fact sheet from Gas Safe.

Follow these tips to ensure you stay safe on your adventures.

Gas Safety when using a touring caravan or motorhome – April 2021

Current Campervan Gas Regulations UK

BS EN 1949: 2021 – ‘Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles’.

Regulations ring binder folder
Photo by ESB Professional via Shutterstock

The regulations are available to anyone but, unfortunately, come at a hefty price tag of a couple of hundred pounds.

So, they’re not easily accessible to anyone installing gas themselves who are still required to comply with them. Therefore, to ensure you’re compliant and safe, we’ve detailed the campervan gas regulations below.

Moreover, we have taken out the relevant information for campervans and put it into easy to absorb chunks.

Be aware, these notes are NOT direct quotes from the regulations; they have been reworded, but they still contain the relevant information.

Please refer to the BS EN 1949:2021 campervan gas regulations for the exact wording. 

A copy of the BS EN 1949: 2021 gas regulations is available to buy here


  • The gas system must be tested to 5x the working pressure using a monometer (air pressure tester). So, the testing pressure for campervans (30 mbar) systems will be 150 mbar. 
  • A maximum pressure loss of 5 mbar is acceptable.
  • All isolation valves should be open and all appliances turned off to ensure the entire system is tested.
  • Test procedure
    • Pressurise the gas system to 150 mbar 
    • Leave it for 5 minutes so the air temperature evens out (the temperature will alter the state of the air in the pipes). 
    • After another 5 minutes, compare the reading. The maximum pressure drop is 10 mbar; anything more and further investigation is required. 
  • The high-pressure filling and regulator hoses can be tested using leak detection spray at working pressure. Bubbles will form around the joint if there is a leak. There should be no leaks within 30 seconds of applying.

Read this step by step guide on how to test a campervan gas system.

Cylinder Compartment

  • Gas cylinders must be stored in a sealed compartment from the living space.
  • A maximum of 2 cylinders of not more than 11kg each.
  • The compartment must have a 50mm upstand at low level, so the door must not go to the floor. This is to ensure any leaked gas is contained.
  • The cylinder(s) must be upright and fixed inside the compartment at high and low levels using a cylinder base and/or straps. 
  • All methods for securing the cylinders must be undoable without using a tool.
  • You must be able to replace the LPG cylinders without disturbing the LPG installation and equipment.
  • The cylinder position must not obscure the regulator, isolation valves or drop-out vents.
  • The cylinder must be a safe distance from the vehicle’s exhaust system. The exhaust system should be no closer than 250mm when viewed from above and at least 300mm from underneath (outside) the vehicle. Alternatively, you can use a thermal heat shield that is not smaller than 25mm and maintains the compartment ventilation. The exhaust can cause heat through the floor and into the cylinder, increasing the pressure inside.
  • Cables can be routed through the compartment, but there must be no exposed joints in the cable. Additionally, there must be no joins in conduit or trunking that route through the compartment.
  • Gas supply control can use ELV (extra low voltage) wiring only. 
  • Any holes in the compartment, except for ventilation holes, must be sealed.
  • Cylinder compartments can be accessible from inside the living space as long as they are sealed when closed to ensure no gas can leak into the camper. 

Cylinder Compartment Ventilation

  • For low-level ventilation only – The free area must be equivalent to 2% of the floor area of the compartment. A typical 50mm drop-out vent will provide 800mm² of free area.
  • For high and low-level ventilation – The free area must be equivalent to 1% of the floor area of the compartment.
  • A cylinder less than 7kg can use a 20mm drop-out vent (internal access compartment only).

Working Pressure And Regulation

  • The fixed working pressure of campervan gas systems must be 30 mbar. The maximum flow rate for a 30 mbar regulator is 1.5kg/hr.
  • Pressure regulators can be fitted directly to the cylinder, wall-mounted or slide-out tray. Also, they must be installed inside the compartment with the cylinder.
  • The maximum length of high-pressure hoses is 400mm and should be routed to avoid stress on the joints. High-pressure hoses are used between the filling point to the cylinder and the cylinder to the regulator.
  • The gas system must have clear markings of the pressure in the system. Typically, regulators have a sticker on them stating their pressure.
  • High-pressure cylinder hoses must be clearly marked with their pressure rating (high-pressure LPG), colour-coded, and tested for LPG resistance. 
  • Replace any hose that’s damaged or showing signs of wear, stiffness, or cracking.
  • Rubber hoses should be replaced every 5-10 years.


  • The gas pipe between the regulator and the appliances must be rigid and made from copper or steel.
  • All fixed appliances must be connected to rigid pipework. A continuous rigid pipe from the regulator to the appliance is acceptable.

Flexible Hoses

  • A flexible hose can be used for non-fixed appliances, e.g. a camping stove connected to a gas bottle that can be stored in a cupboard.
  • This flexible hose must be less than 750mm in length.
  • A shut-off valve must be installed before the start of the hose.
  • The flexible hose must meet current LPG standards.
  • It must be accessible for inspection so it cannot be routed behind cupboards or areas where it’s concealed, like under floors.
  • Replace a flexible hose that’s damaged or showing signs of wear, stiffness, or cracking.
  • Flexible hoses should be replaced every 5-10 years.

Gas Pipe Fittings

  • Campervan gas pipes must be made from copper, steel or stainless steel and protected from corrosion where necessary. External pipes require a plastic coating to protect them from corrosion. 
  • Plastic pipe fittings must not be used.
  • Permitted gas pipe fittings are cutting ring type, capillary, flare, compression and threaded fitting for nozzle.
  • PTFE tape must be used on threaded fittings.
  • PTFE tape must not be used on compression fittings. The thread does not seal a compression fitting, so applying PTFE tape could cause a leak. 

Installation Design

  • LPG pipes must be kept clear of electrical cables and components where possible. Alternatively, the minimum space between them in a parallel path is 30mm and 10mm anywhere they cross. 
  • Pipework and fittings must be installed so they’re accessible for testing and maintenance purposes.
  • There must be no undue strain on the system, especially at joints, as they’re the weak points.
  • Pipework and fittings must be protected against mechanical damage by installing them in a safe location and protecting them from vibration or user damage.
  • Plug-in gas outlets must be installed outside the vehicle, be protected from road dirt and water, not contain any electrical connections and be labelled ‘LPG outlet only’.
  • Copper pipework must be clipped to the surface with a maximum distance of 500mm between each clip. Whereas steel and stainless steel pipework require a maximum distance of 1 metre. Put as many clips as necessary for it to be secure. 

Rubber coated metal clips should be used as they’re strong and won’t damage the pipework.

Shut Off Valves And Isolation

  • All pipe joints, hose connections, valves and isolators must be easily accessible and identifiable. 
  • Each appliance must have a gas shut-off valve for isolation. The shut-off valve of the cylinder/tank can be used if a single appliance is installed. 
  • The shut-off valve must be clearly labelled as ‘gas’ and the appliance it controls. Typically, the handle colour for gas fittings is yellow.
  • It must be obvious what’s on/off. Typically, on is when the handle is in line with the valve and off is when it’s at a right angle to it.
  • A safety closing device (excess flow valves (EFV) or crash sensor activation valves (CS)) must be installed on appliances that will be used while the vehicle is in motion to prevent the uncontrolled release of LPG in an accident. 
  • If an over-pressure relief valve is utilised, it should release the gas into the cylinder/tank compartment or outside the vehicle.
  • Shut-off valves and isolators must be positioned so they’re protected from road debris and dirt. Alternatively, a cover must be used as protection.  


  • Must be suitable for use in a campervan and have relevant instructions. 
  • Cookers and hobs must have secure burner caps.
  • LPG appliances must be of the room-sealed type. So, the combustion (inlet) air must come from outside, and the exhaust (outlet) must vent outside. They must not use air from inside the vehicle for combustion.
    • Space heaters have two air ducts routed to outside the vehicle.
    • 3-way fridges have exterior side vents in the vehicle.
  • Space heating must be provided by room-sealed appliances.
  • Plug-in gas sockets are for external gas appliances only.
  • Non-fixed/portable cooking appliances that need to be stored whilst driving:
    • Must have a shut-off valve positioned before the flexible hose to the appliance;
    • The flexible hose must:
      • Be accessible. Therefore, it can’t be installed under floors, above ceilings or behind walls. 
      • Be less than 750mm in length.
      • Not be touching hot surfaces liable to damage the hose.
      • Be protected from stress and damage.
  • If the appliance incorporates a plug-in socket for disconnection. The fitting must be able to close automatically when the appliance is disconnected.

Flue Terminals And Locations

  • Flue pipes and accessories must be suitable for their purpose and appliance. Also, they must be installed as per manufacturer instructions.
  • The entire flue system must be accessible for periodic inspections. Using a tool to access the flue is acceptable. 
  • A flue outlet must be at least 500mm from the gas filling point.
  • A wall or roof flue outlet cannot be directly underneath or within 300mm of an opening window or vent. This prevents flue gases from being drawn into the vehicle. However, the flue must be installed underneath an opening window. In that case, an automatic shut-off valve must be installed to turn off the appliance when the window is open. 
  • Flexible flue pipes must be continuous and contained inside an air duct.
  • Campervan flues must be secured to ensure they won’t move or come loose while the vehicle is in transit.
  • Suppose the vehicle has a flat underside with chassis members (e.g. Luton vans). In that case, drop-out vents and the flue outlet must not be in the same ‘channel’ because flue gases could collect and enter the vehicle.

Installation Of LPG Tanks/Cylinders

  • Permanently fitted gas tanks/cylinders must have an auto cut-off of 80% so they can’t be overfilled.
  • They must also have a manual indicator, pressure release valve and overflow regulator.
  • The tank/cylinder and its components must be fitted so that only the gas is extracted. Therefore, cylinders cannot be on their side, and the regulator must be fitted above the tank/cylinder. Otherwise, liquid may get drawn from the tank/cylinder.
  • A warning label must be installed close to the tank/cylinder stating, ‘All appliances are to be manually isolated before refuelling the cylinder’.
  • The tank filling point must be installed outside the vehicle and at least 500mm from a vent, opening window and flue outlet.


  • A label stating that ‘all gas appliances must be turned off in case of refuelling (LPG, diesel and petrol)’ must be inside the vehicle where it’s easily seen.
  • A ‘Close cylinder/tank during motion’ label is required near the tank/cylinder for appliances not used while the vehicle is in motion.
  • Shut-off valves must be clearly labelled to quickly identify what they control.
  • External plug-in outlets must be marked with ‘LPG outlet only’.

Slide Out Tray

  • A slide-out tray can incorporate multiple appliances. Each appliance must have its own shut-off valve. 
  • One flexible hose must connect the LPG appliance/canisters on the slide-out to the vehicle LPG installation. 
  • The hose assembly must be less than 750mm and protected from stress and damage.
  •  The regulator must be mounted to the cylinder, wall of the compartment or on the slide-out tray.
  • Before the hose assembly:
    • an excess flow device must be installed;
    • a shut-off valve must be installed no more than 500mm from where the flexible hose meets the solid pipe. 

Earth Bonding

  • Metallic gas pipes must not be used as a bonding conductor. Only a suitable cable should be used for bonding conductors. 
  • Metal gas pipes should be connected to the main earthing terminal with a “protective bonding conductor.” An earth cable must connect the gas pipe, using a bonding clamp, to the main earthing terminal, usually the 230v fuseboard earth busbar in campervans. 
  • The minimum cable cross-sectional area for copper pipework less than 35mm² is 10mm².


Whether you’re installing gas to your campervan for personal use or renting it out, you now have all the knowledge and information you need. Well, that was easier than scouring the web, wasn’t it?

Like us, if you were clueless about campervan gas regulations, hopefully, you’re now assured and well informed. As a result, you’ll have peace of mind knowing your installation is safe because it complies with current gas regulations.

Now you can install your campervan gas with confidence.

In fact, our underslung gas tank installation guide is an excellent place to start.


  • Reply
    11/07/2023 at 8:34 pm

    Hi guys. I was very pleased to see your summary of the regulations because I’m trying to get my Crafter conversion checked out by a Gas Safe man. I built my gas bottle locker in line with normal industry practice (I’m used to European vans, not British ones) only for a Gas Safe man to tell be that in addition to the 2% stipulation for the gas drop-outs, as in your article, the British Standard also demands a minimum ventilation area of 10,000mm². That’s quite a big hole, and the van chassis gets in the way! The Gas Safe man had never seen a van with an internal gas bottle locker and was relying heavily on his reading of the regulations, so whilst he was insistent it wouldn’t pass, he had no suggestion for what I might do about it.

    I’m booked in to see another Gas Safe man in a couple of weeks. He knows about campervans so I hope he will be in a position to offer real advice if he thinks it won’t pass. My motivation for the check is partly because a professional has the tools to do safety checks that I can’t, such as a pressure test, and partly because I’m potentially looking to rent the van I’ve built, and in order to do that it needs a gas safety certificate. It seems that I don’t need a certificate if I choose to sell the van. I’ll let you know the outcome of my inspection.

    [For transparency this is a summary of email interactions I’ve had with Jolly on this topic. It’s been great to be able to talk about this with a knowledgeable and friendly person]

    • Reply
      Nemi & Jolly
      13/07/2023 at 8:14 pm

      Hey Cliff,
      Thank you for this summary, i’m always happy to help where i can. The campervan gas drop out vent topic seems to be a murky one and we feel the regulations could be clearer. So, we very much look forward to hearing about your outcome.

    • Reply
      23/07/2023 at 10:44 am

      Looking forward to hearing how your van inspection came out. Im in the middle of figuring how to retrofit a comliant gas locker for rental purposes too. I always thought it had to only be accessbile from the outside however after reading this article is seems as long as its sealed from the living space thats ok. Let us know your Gas certifier you have more luck with if thats ok?

    • Reply
      25/07/2023 at 8:22 pm

      Hi Cliff, very interested in the second engineers assessment. I have a 2019 Sprinter and intend fitting a steel gas locker midway along behind the drivers seat. My take is that 50mm drop out meets the requirements but after reading your post I’m not sure. I have an 11kg refillable bottle -will get the system inspected but interested in your feedback. Thanks, Andy

      • Reply
        01/08/2023 at 6:01 pm

        Hi Andy. I’ve posted the next episode as a reply to my earlier comment. I think with a single bottle there’s a lesser requirement for gas drops, but there is a size limit for that. My 6kg is OK, but I’m not sure about 11kg.

    • Reply
      01/08/2023 at 5:58 pm

      I’ve now had an informal inspection by my friendly Gas Safe man, and he had a few action points for me:

      – seal the holes leading into chassis members that were exposed in the Truma boiler locker
      – label the isolator valves
      – add an extra clip to the pipe passing under the floor ( the spacing was too great)
      – replace a couple of pipes where I had kinked the bends
      – add some floor level ventilation (not gas dropouts, but to supplement the permanent ventilation provided at the top by the skylights with permanent ventilation)
      – properly seal the hole in the gas bottle locker through which the gas pipe exits. It would have been better to protect the pipe as it goes through the wood

      And on the matter of the gas bottle locker, the best solution is to designate it as a for use with a single bottle only, in which case it complies with the regulations.

      I managed to damage a piece of pipe that didn’t need replacing when I was fitting the extra clip he asked for, but fortunately I had enough pipe and olives to replace that, but not without a lot of swearing! It was an argument with a rivnut!

      I now have to arrange for the real inspection. Here’s hoping!

  • Reply
    John Henson
    04/07/2023 at 9:07 am

    We have had a rethink about the gas locker for our Transit van conversion. We are now planning to use a small, bought, metal locker and a Camping Gas 907 bottle. Unfortunately this arrangement does have sufficient space for a bulkhead regulator inside the locker. Is a bottle regulator connected by flexible pipe to a bulkhead fitting in the side of the locker acceptable? There will be fixed copper pipe from this fitting to the isolator valve and hob. Also will my Dometic hob need different jets to operate at 28mbar?
    Many thanks for all your useful advice.

    • Reply
      Nemi & Jolly
      07/07/2023 at 8:37 pm

      Hey John,
      This is acceptable if the regulator hose is a genuine ‘high-pressure’ gas hose and complies with the requirements of your gas bottle and the gas regulations – See Pressure Regulation And Working Pressure section above.
      Regarding your gas hob, the gas jets are designed specifically for mbar gas pressures and air mixture, so the hob will work but may be ‘under-gased’ and, therefore, less efficient. Unfortunately, we can’t advise on the Dometic hob. We recommend referring to the manufacturer’s specification for the required mbar gas pressure. Alternatively, contact Dometic directly.

  • Reply
    28/06/2023 at 6:14 pm

    Thank you so much for the compilation of the essentials!
    We are thinking of having a van built for us and two companies were telling us they will adhere to the norm but I am not sure about a few things.
    Does the law state anything about how to fill the LPG bottles? One company wants to put the gas compartment below the two-burner stove which sounds great, but the filling adapter will be directly on the compartment, meaning you have to open the sliding door at the side of the van to access it. Is that possible?
    And you mentioned the pipes need to be of rigid copper or steel. One company wants to use reinforced thermoplastic pipes which are more durable and are used in the “industry” as well which also sounds nice but I am not sure if it complies with the rules.

    Thanks again for your work! 🙂

    • Reply
      Nemi & Jolly
      01/07/2023 at 8:51 pm

      Hey Oliver,
      Thank you for raising this query.

      The gas regulations do not state the exact location for the filling point. Still, it MUST comply with the regulations ‘cylinder compartments with internal access’ section regulations listed in this post. However, be aware that LPG guns expel a burst of gas when removed from the filling point. Therefore, this gas could enter your van depending on where the filler point is located. I strongly advise there’s adequate ventilation for the expelled gas to escape. Alternatively, install the filling point outside the van to alleviate this situation.

      Reinforced thermoplastic pipes (RTP) are used for oil, gas and water services. They’re easier and faster to install than solid copper or steel pipes. Unfortunately, I can’t advise on RTP because I have no experience. Therefore, I recommend liaising with the installation company to ensure the system is signed off by a qualified Gas Safe engineer on completion.

      I hope this information is useful to you. Have fun with your van build.


  • Reply
    Bel and Steve
    22/06/2023 at 12:13 pm

    Really helpful – well done on doing such a great job collating this information

    • Reply
      Nemi & Jolly
      22/06/2023 at 2:11 pm

      Thank you Bel and Steve x

  • Reply
    John Henson
    05/06/2023 at 1:12 pm

    We are converting a Mk7 Transit and plan to place the gas locker under the bed, accessible from the van rear doors. We are intending to construct a plywood locker; does this need to be metal lined? Thanks in anticipation

    • Reply
      Nemi & Jolly
      06/06/2023 at 7:06 pm

      Hi John,
      The regulations state ‘Gas cylinders must be stored in a sealed compartment from the living space’.Therefore, a plywood locker is fine as long as it is fully sealed so gas can’t leak into the living space. Also, when building your own locker, be mindful that the compartment must have a 50mm upstand at low level, so the door must not go to the floor. Thus, to ensure any leaked gas is contained within the locker.

      Here’s the link to the specific gas locker regulations –

      Good luck with your build.

    • Reply
      29/07/2023 at 11:35 am

      Hi, this sounds like the same issue I have, drilling holes in the floor for dropout vent, MOT man says no holes in floor within 30cm of suspension points or structural chassis area, I don’t want gas locker in middle of van floor. Any ideas on this. 2013 ford transit .
      Thanks Steve D.

  • Reply
    23/05/2023 at 10:19 am

    Hi. We’ve just had a van converted and the gas bottle has been placed in such a position that when it’s secured in the retaining straps it sits in top of the floor vent. Common sense would say this is daft but would we need to put another vent in or are the holes in the base of the gas bottle sufficient to allow the gas to access the vent.

    • Reply
      Nemi & Jolly
      24/05/2023 at 9:34 pm

      Hey Emma,
      The regulations state – ‘The cylinder position must not obscure the regulator, isolation valves or drop out vents’.

      Has the van been issued a gas safety certificate? If so, the gas engineer will have accepted the gas bottle position. Additionally, contact the conversion company to discuss the matter with them.

      In your case, the bottle sounds like it obscures the drop-out vent, but the holes in the base of the bottle will allow the leaked gas to pass through. However, I would argue that the bottle needs to be raised off the floor slightly to allow any gas puddled at floor level to escape through the vent.


  • Reply
    04/05/2023 at 5:51 pm

    Hi, all this information is really useful, paying £300+ for the standard is not something I, or anyone, wants to be doing.
    Do you know if the standard says anything about hobs and whether the hobs need to conform to any standards? I’ve seen people say some hobs – domestic style hobs without the burners screwed down – are not compliant so wouldn’t pass a safety inspection, but I can’t see anywhere that confirms this. I’m wondering if it’s in the standard but I don’t have a copy to confirm it.

    Also, as a side note, I know from my work that BSI are trying to clamp down on the sharing of standards, they claimed if you buy one for a business you can’t share it with anyone else inside that business without breaching copyright. This also included screenshots from the standards, which seems a bit mad but there you go. Just wanted to point it out so you don’t share screenshots or direct quotes and get yourselves in trouble.

    • Reply
      Nemi & Jolly
      04/05/2023 at 9:06 pm

      Hey George, thank you for your comment and input.
      In regards to gas hobs:
      – Appliances must be installed in accordance with appliance manufacturers instructions in regards to ventilation, access, heat and obstruction.
      – Cooking appliances must have burner caps securely installed. Additionally, cooking appliances must be secure when in use and in storage/not in use.

      Legally, anyone can install gas in their campervan for personal use only, and they are ‘competent’ enough to do so. Potentially, this is a dangerous cocktail. However, having access to the current campervan gas regulation information in this post will (hopefully) ensure that campervan gas installations are safe and done correctly.


      • Reply
        16/05/2023 at 10:48 pm

        Hi jolly,

        Thanks for the answer. I’ve seen people talk about the burner caps not being secured down as a reason for not using domestic hobs in vans but no-one had ever shown it was actually stated in the standard. Its good to the confirmation.

        The cooking appliance being in storage when not in use is an interesting one. I guess that’s why the leisure vehicle ones are all recessed and have a lid. That must count as in storage to comply with the standard.

        All good to know. Thanks for the help.

  • Reply
    23/04/2023 at 11:12 am

    Hi regarding the drop vent, looking at the underside of my van where I intend to put the cabinet is a structural metal section. I will either need to have the hole directly above where the spare wheel is stored or alternatively build the cabinet with a boxed in and sealed area to the side of the cabinet where I can place the hole. Are there any rules specifically about this? Either way would still be well ventilated. Thanks in advance.

    • Reply
      Nemi & Jolly
      24/04/2023 at 8:24 pm

      Hi Pete, as long as the drop out vent is located at the bottom of the cabinet and externally its in open air, your good to go. Even above the spare wheel as long as the vent hole isn’t obstructed and is exposed to the air. The gas is heavier than air so will naturally flow to the base of the cabinet, through the drop out vent to outside.
      Also, any wind flow underneath the van will draw air out through the vent, ventilating the cabinet.

      Hope this helps,

  • Reply
    20/02/2023 at 6:39 pm

    Are you certain that all of these regs relate to campers and motor homes? One of the companies I am buying equipment from, state that their gas locker complies with these regs, but only has 1 piece of retaining equipment.

    • Reply
      Nemi & Jolly
      21/02/2023 at 12:29 am

      Hi Ross, the regulations listed in this post are specific to campervans and motorhomes. Contact the company with your query to ensure their product meets the current gas regulations. Use the information in this post as guidance.
      We’ve had a similar issue recently with campervan electrical products that don’t meet the current electrical regulations. It turned out the company were unaware.

    • Reply
      04/05/2023 at 6:00 pm

      As a follow up to this, the standard refers to the installation of LPG systems, not to products. Each product should then have its own specification to confirm to. GASIT, who sell refillable tanks, have an FAQ about this because people ask if their tanks conform to BS EN1646 and they are quite clear that no individual product can conform to that standard but the standard deals with installations. Its not possible to sell an individual product and have that automatically comply to the standard.

      That being said, I don’t know if BS EN1646 states anything about certain products meeting certain standards.

  • Reply
    Phil Jones
    29/01/2023 at 2:42 pm

    Hi, I have looked at several van conversions recently and am troubled that many don’t seem to conform to the regs in this article. Additionally, a mate of mine was telling me of an issue on van conversions where clearance between a gas hob and the cupboards above is not sufficient and against the hob manufacturers specification, eg 370mm actual clearance v 500mm in the spec. Is this clearance a regulation, or guidance?

    • Reply
      Nemi & Jolly
      02/02/2023 at 4:48 pm

      Hi Phil,
      The gas regulations doesn’t state clearance measurements for gas hob appliances. It does state that all appliances must be installed in accordance with appliance manufacturers instructions in regards to ventilation, access, heat and obstruction.
      Thank you for bringing this to our attention, we have updated the ‘Appliance’ section in the post to include these regulations.

  • Reply
    11/01/2023 at 9:36 am

    Guys, thank you so much for all this information. It has helped me massively. I have bought a camper conversion with the gas system installed, so won’t be doing an installation, but reading all your info on the regs and also the installation guides helps me understand my system and check it all over. Love the design and clarity on your website too. Will be exploring your pages more.
    Thanks a lot.

    • Reply
      Nemi & Jolly
      13/01/2023 at 12:33 pm

      Hey Penny, thank you so much for your kind worlds, It’s very reassuring.

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