Someone has mentioned that this thread, somewhere, says that gas bottles are now allowed on Eurotunnel. This is incorrect. Gas bottles for cooking stoves, etc., are allowed. This in from information from Eurotunnel's own website.
Gas used for domestic services
If travelling with a campervan, caravan or any other vehicle fitted with cooking facilities, any flammable gas container must be declared when asked and will be checked at the appropriate checkpoint by Eurotunnel Le Shuttle
Flammable gas containers may be transported with the following restrictions:
||Maximum quantity allowed
|1 portable container
|Several portable containers
|1 fixed container
|Several fixed containers
In all cases, transport of gas containers to power domestic services (e.g. cooking, lighting & heating, etc.) are restricted as outlined below:
Portable gas containers (cylinders/bottles, etc.)
For the purposes of this text, this means cylinders/bottles containing flammable gas that can be moved from the vehicle for replacement or re-filling.
The quantity of gas is limited to 47kg (or approximately 93 litres) maximum for a single container and to 50kg (or approximately 99 litres) maximum in the case of several containers.
I hope this makes it quite clear the gas bottles are allowed.
However LPG powered vehicles cannot travel on Eurotunnel.