Trangia SR25 Simmer Ring Replacement for Spirit Burner Simmer ring for Spirit burner Weight: 23g  /  0.81 oz Dimensions (Ø): 65mm x 18mm  /  2.56 in x 0.71 in Made in Sweden by Trangia AB since 1925 Use alcohol-based fuel only. The name of fuel varies around the world: Tenol eller T-röd (SE), Methylated spirits or bioethanol spirits (UK), Brennspiritus (D), Ethyl alcohol or Denature alcohol (USA), Methyl alcohol or Wood alcohol (AU), Alcool a brûleur (FR), Rødsprit (N & DK), Gedenatureerde alcohol (brandspiritus) (NL), Marinol-100 or Sinol (FI). For more info please read the instructions and see the list of suitable fuels. In Sweden we recommend using Tenol from the brand Kemetyl as a first choice. Never use gasoline, paraffin, petrol or kerosene.​ This may results in serious Injury. Warning: Never attempt to fill the spirit burner until it is fully extinguised. Cover the burner with the closed simmering ring for 30 second to ensure the flame is out before attempting to refill. Alcohol flame can be difficult to see in daylight. Check for heat from bumer, coold before refilling. Before using, read and comply with all instructions.