How to change and attach the motorhome gas cylinder

How to change your motorhome gas bottles

Gas supply in your rental motorhome: how to change and attach the gas cylinder.

Motorhome rental Equipment & Use

Gas for Motorhomes
Using liquefied petroleum gas (LPG) in a caravan or motorhome is a flexible and convenient way to provide heating, cooking and refrigeration facilities, while remaining independent of site supplies.
LPG is normally supplied in a pressurised cylinder, where the fuel inside is stored under pressure as a liquid and only becomes gaseous when released and fed to the appliance. This has to be done at a suitable pressure for the appliances to use and is normally achieved by the use of a pressure-reducing regulator that supplies gas at a standard pressure to the system. Two different gases are used, propane and butane. Both are LPG products but they have slightly different characteristics

How to attach regulator

How to change the gas cylinder

Cylinders and regulators
Larger cylinders suitable for motorhome and caravan use can come in a range of sizes and colours according to their source, but the two Calor types still predominate – red cylinders containing propane and blue cylinders filled with butane. Until September 2003, caravans and motorhomes used a different regulator depending on which gas was being used to provide the appropriate operating pressures, 28mbar (millibar) for butane and 37mbar for propane. Some units from European countries used different pressures, up to 50mbar.

Since September 2003 a European standard (EN 1949) has made the supply pressure the same for both gases throughout the EU at 30mbar . While pre-2003 units still require different regulators depending on the gas used, all current UK-built caravans run at 30mbar , and this figure should be marked in the gas locker near to the regulator .