The project concerns the granting by the City of Rybnik of support in the form of a non-repayable grant granted to natural persons — owners of single-family houses for the implementation of low-emission projects involving the exchange of heat source together with possible replacement/modernisation of the c.o./c.w. installations. All 727 buildings contain heat sources based on solid fuels (coal/wood). All these heat sources will be exchanged for sources meeting the requirements of the “anti-smog resolution” of the Silesian Voivodeship, i.e. in the case of solid fuels (only pellets) for boilers meeting the requirements of class 5 and ecodesign standards or on sources based on mains heat, gas, electricity/RES.