Want to check if your gas bottle is almost empty? Follow these steps to check your gas bottle levels:

1. Turn it off: Make sure your gas bottle valve is turned to the ‘off’ position.
2. Warm water: Fill a large bucket with warm water and gently pour the water down the side of the gas bottle.
3. Feel the temperature: Carefully feel the gas bottle from the bottom up. The steel will feel cooler below the gas level and warmer above it. Your gas level is at the point where the temperature changes.