Hi @Juniperus. Welcome to CCS. If you have an Optimus 111T you do not need a restrictor tube if you intend to use Coleman Fuel of Kerosene. The restrictor is however intended to be fitted if you wish to use alcohol: Op.111 Hiker ex British Military. Best Regards, Kerophile.
Hello kerophile and thank You. So this indeed is 111T and so if I want use kerosene ( in Finland it is called valopetrooli) I can just fuel the burner with alcohol for preheating and burn kerosene happily.
Hi @Juniperus . I just remembered this link to Restrictors for Op.111 stoves burning Alcohol : Three types of Meths restrictors. Best Regards, Kerophile.
Thank You kerophile , I am waiting if the seller of my stove finds those restrictors at her boxes and sends them to me.
Since these restrictors are not used much, they often get lost, so most used stoves come without. You could make them out of (copper) tubing, but alcohol has the least calorific value (heat). Most users prefer kerosene or paraffin as it has the highest CV . By the way, in Holland it is called petroleum.