Technical and Economic Reconstruction Proposal for Gas Boiler Plant to Satisfy Efficient District Heating System RequirementsFrantišek Világi, Peter Mlynár, František Urban, František Ridzoň, Lucia Bursíkova, Iva Fabušová and Ján JanušMATEC Web Conf., 412 (2025) 04001DOI: https://doi.org/10.1051/matecconf/202541204001