Which Calor gas cylinder should I use for my barbecue / patio heater / portable heater?
Appliances should generally state which cylinders they are compatible with, but if you are unsure, use our simple guide to selecting the right cylinder.
What is the difference between propane and butane? Is one more suitable than the other for particular applications?
Propane (red and green cylinders) has a lower boiling point than butane (blue cylinders) and is stored at a higher pressure so it is more suited for storage outside. Butane’s boiling point (conversion from liquid to gas) is around 0˚C so in colder conditions around this temperature it will not work.
 Where can I get my butane/propane Calor gas bottle refilled?
Call 0800 662 663 and you will be diverted to your local Calor Gas Direct outlet. Alternatively, you can order your gas online via our secure ordering facility.
What is the operating temperature range for each of the gases?
BS 5482 part 1 states: "For Butane cylinders, satisfactory service might not be obtained at a temperature of less than 10°C; the most suitable temperature range is from 13 to 30°C. For temperatures less than 13°C, the use of propane should be considered."
Are the two gasses interchangeable?
If the appliance states in the manufactures guidelines that it can run on propane and butane then you will need the right regulator for the gas that you are using. You can only interchange the gases if it is stated by the appliance manufacturer.
Are the valves/fittings the same?
No, you will require different regulators. | 
Topic: Propane v Butane
