Roasting Coffee - Conduction vs Convection Heat in Practice

Kriss Wieser talks about conduction and convection head during roasting and how Equator Coffees and Teas utilize 2 different roasters to bring out the best characteristics from their coffees.
The video is part of the Boot Camp Coffee online course for coffee professionals.
bootcampcoffee...

[@TheTroutDoc]

Great information. I have just began to study heat exchange in different roasters. I use a corretto style roaster and have wondered what is the difference in the roast will be if I preheat the chamkber, I think you have answered my question. Thanks. SH

[@edbourgeois8601]

should drum radiance also be considered? Especially in a traditional drum roaster.