Solid fuel boiler with a bunker that burns wood chips

In Ukraine, many people have been switching to renewable heating sources in recent years. In rural areas, small (10-40 kW) solid fuel boilers are often installed. The fuel for them is made from wood residues, branches, corn cobs, and stalks. This is quite economical.
The video shows such a boiler running on wood chips. The boiler is controlled by an automatic unit that maintains a constant temperature of the coolant and controls the air supply. A control panel on the wall controls the fuel bunker, feeds fuel into the boiler, and periodically stirs the fuel to prevent it from clumping.

Have you looked at the Rocket Mass Heater as a better alternative?

Anne Miller wrote:Have you looked at the Rocket Mass Heater as a better alternative?

In the case described, it is not applicable. We needed to create an economical heating system for a three-story building with fairly strict safety requirements.