A conversion to a Wayne burner using a Craig Kepner (ckburner) kit. Craig thought out this block very well,it fits in a 9" tube and has holders for the electrodes
The first mod is to extend the air tube (blast tube) to hold the preheater and a hole in it for the fuel line.
I welded some 4" exhault pipe to the short tube I had but you can buy a 9" tube from beckett.
A Kagi retention head.
A spring added to top of preheater block to hold center
The PID temp control to left side