AUTHOR=Holubčík Michal , Cagáňová Dagmar , Jandačka Jozef TITLE=Editorial: Environmental impacts from small heating systems JOURNAL=Frontiers in Energy Research VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2024.1384163 DOI=10.3389/fenrg.2024.1384163 ISSN=2296-598X