Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I've made a lot of folded and silver soldered copper gel burners over the years, and 75% gel is a superb fuel for this hobby.

Wilesco has now come out with their own line of replacement/upgrade gel burners -

https://www.ministeam.com/collections/wilesco-burners

I was at the right place at the right time and literally got a lifetime supply of 500ml pump bottles of 75% gel.
Burns very hot with a blue flame and very clean.