How to make a High-Temperature Furnace (using waste oil burners)

Using 2 freon tubes. Combustion using waste oil burners.
In the trial process, to burn the experimental material to make a fire resistant pipe. Which will later be applied to the project making waste oil burners that use high-speed blowers :
https://www.youtube.com/watch?v=HDwluGx8u7I
https://www.youtube.com/watch?v=ZM-oVXMDVNI
https://www.youtube.com/watch?v=8lF8vNczoqE

Видео How to make a High-Temperature Furnace (using waste oil burners) канала Teknik Kreatif Alternatif