Electricity-free, communal waste treatment system No annual operating cost, no annual maintenance charges - very cost effective. Treats all household wastes for settlements between 1, 000 to 80, 000 inhabitants. If the settlement is larger, than more than one machine is needed. You can observe the already installed systems, and talk to the mayors of villages and small towns. We will welcome you to Hungary to show you these systems. The initial purchase price will be recovered by your savings on the fact that there is no annual operating cost, and no annual maintenance charges either Depending on size of your settlement. The larger the settlement, the larger the system.