At the present time the problem of an alternative source of room heating is actual, including at the expense of application of the solid-propellant vessels. Various materials are used as a fuel for them: pellets, wood chips, sunflower husks etc.

The firm developed a complex for feeding of such fuel, including the unloader of soft containers (bags "Big-Bag") with material and the special screw for its transportation in the vessel.

Possibility of integration into the complex of scales for the fuel consumption account is being worked at.