I have been using the ridan medium for 2 years now and I am very satisfied with the end result of a black brown compost.
The main trick is to keep the moisture OK (add more or less wood pellets) and then temperature stays easily around 55 Celsius in summer and winter. The Ridan is placed in the shade of a high hedge.
It took some time to find the balance but we ended up with an average of 12kg fresh kitchen waste (peelings, cut offs etc) on a daily basis with 4 double hands of pressed wood pellets (conifer), 1 small trowel full of chicken pellets and 1 trowel of wood ash (mixed wood) wood pellets (conifer) .
In this way it was good to oversee the process for the students.
We filled up 1 hot box in approx. 4 months and added regularly 2 shovel fulls of half-ready garden compost teeming with worms.
Finally the compost was mixed in the outside compost heaps and matured for 9 months before use in the crops.