The burners are suited to keep your fondue warm. The main advantage of these burners is that they are immediately ready for use. You no longer have to fill the holders. The burning liquid will last approximately 5 hours. If you don't need it for five hours you can put it out with the flame regulator. Afterwards you leave the burner to cool off, remove the flame regulator and place the lid on top. You can store the burner for the next time. As soon as the burner is empty you can throw it out. Another advantage of this burner is that it is completely odourless.
With these ready-to-go fondue burners you no longer have to worry about pouring flammable liquid. The burners are already filled. If fluid seeps from the Boska burners you don't have to worry about causing a fire. The liquid is namely not flammable without a wick.
2 burners with flame refulator.