First of all, you have to take off the glass or steel mesh from the gas lantern. Then slip the mantle over the burner: the large hole should cover the entire perforated part of the burner. The little hole should only be placed at the tip of the burner.
After bringing the mantle into the right position, it is very important to check that the valve is closed to avoid flames. If the gas is safely off, light the mantle by hand.
Let the mantle burn a few seconds until there is only a white ‘skeleton’ left. There will be a small flame and some smoke, so make sure to do this outdoors or in a well ventilated area. Now, switch on the gas and ignite the lantern.
Run it to full effect to stabilize the ‘salt skeleton’. After about 30 seconds you can adjust the flame to the desired brightness. Finally you can put the glass or steel mesh lamp shade back into the right position. The lantern is now ready for use!
You get the best efficiency rate with a half to three-quarter opened valve – that also counts for gas stoves.