[T.G]

I started out with a hot air popcorn popper that, like yours, just had the bottom inlet rather than the side "swirl" vents. What I ended up doing was making a chimney from two tin cans with both the tops and bottoms cut out and then taped together with high temp tape. Took the plastic top off the roaster and stuck the chimney into the chamber, then would wear leather gloves and use a long wooden spoon or just gently shake the roaster to stir the beans during roasting.