inspired me to try cooking Tikka in my Chiminea too.
Solarsplace,
i was taken aback how good the chiminea is. i use my gas bbq to cook tikka most of the time as it's in the garage and not weather dependent. the gas bbq result is pretty good but the chimy is something else.
i fire the chimy up with quite a bit of wood initially and wait for it to die down. i then keep the heat up by adding a little at a time. u want heat not flames as the flames blacken the meat.
when i cook with the big skewer on an angle through the top it takes a surprisingly long time to cook - i've not consciously timed it but it's probably around 15 to 20 mins. i turn it once through 180 deg during the cooking.
don't forget the trick of warming the skewer before putting the chicken on - otherwise it drops off.
before marinating i cut each breast in half longways. if the breast is big i push the skewer through the ctr. if small i thread it on top & tail so to speak. i only cut the breast into pieces after cooking.
all the best