The flue gas is filtered by a very efficient electrostatic filter, which stands out especially for its low operating costs (approximate electrical consumption of 1kW per 1MW of boiler heat output).
Boilers with industrial combustion system from the Czech manufacturer ZDENĚK FIEDLER with fully hydraulic fuel filling achieve very low NOx gaseous emissions thanks to active flue gas recirculation (reintroduction of flue gases that go back up the chimney to the second stroke of the boiler).
The flue gas is filtered by a very efficient electrostatic filter, which stands out especially for its low operating costs (approximate electrical consumption of 1kW per 1MW of boiler heat output).