I cut some small well seasoned Aussie eucalyptus hardwood into the correct size to get into the firebox and a small amount of spirits to get the wood alight. The smell out of the chimney was delightful.
After it all burnt down to ash, I was able to suck it out with a small car vacuum cleaner......all in all, it worked quite well!
https://youtu.be/kDhQtNsuHM0https://www.youtube.com/watch?v=kDhQtNsuHM0