super late answer I know - but a question deserves an answer right?

I live very close to the Twin Heat factory in DK. They make high quality stokers - that is units that can use multiple types of biomass.

The Cpi 12 is their smallest unit, and has a very good reputation in DK. I don´t own one myself, but occasionally tend to one of my friends Cpi 12. All the materials are of super high quality. The ability to turn the fuelhopper/magasin and access the burner directly is a huge plus.

The electronics are simple and straightforward 3 options and a fourth self programming choice.

Minus: It pause-fires. That means that it does not start and stop. In real life this means that the cpi 12 is ill suited for homes that need their boilers to work in the 3-4 warmest months.