I made some mods to my fresh roast 500....MORE POWER! Some time ago I broke the glass chamber and had to by a replacement, I also bought a chamber extender (not shown here) that gave me an idea. I found an 8” hurricane lamp glass replacement that was a close enough fit (duct tape baby) and used the old chamber handle to rig up a full size roasting chamber. Compared to the chamber extender this little set up functions as good or better with emphasis on “or better”. The downside to more beans is more chaff. The original set up was barely able to handle the amount of chaff that was produced so I rigged up a chimney to blow the chaff off. The chimney has some wire screening to help keep beans in place but I need to tweak that more because I still get a too many beans accumulating at the top of the chimney as they roast nears completion.