Do the math and you will see the value of using HTF.
Cost $1/ gal
Resulting output.
.75 gal diesel. Value $2.60/gal = $1.95 .15 gal naphtha. Value $.95/gal = $0.14
Total value of 1 gal of HTF processed $2.09
The value of processing HTF is approximately a 100% increase.
PLUS the improvement in processing plastics as a result of better heat transfer in the kilns. That allows for using lower density plastics as feed stock.