Look at what was on my doorstep one glorious afternoon. My mini hotbin finally arrived.
Light and easy to manhandle into position; I soon had it out of the box and filling up.
Fortunately I have a paper shredder so was easily able to get a good mixture of green stuff (vegetable peelings and grass cuttings) mixed with brown stuff (shredded paper and cardboard) and a sprinkle of supplied 'hard' stuff (woodchips) to provide aeration.
The temperature stubbornly hovered in the mid thirties - would it never reach the magical 40-60 deg C and cook. That heady day arrived and it steamed away. As suggested, I drew off some liquor from the bottom so it didn't flood as the contents shrank down and I topped it up. The result 6 weeks later was a coarse compost - to be fair they recommend using it at this stage as a mulch but with a bit of sieving out of the lumps (eggshells and larger lumps that have not fully rotted down which will be returned to the bin) I shall have a bag of my own compost.