Energy saving using solar air heater collectors Mirsoli Uzbekov, Bekzod Boynazarov, Feruza Nasretdinova, Iqboljon Zoxidov, Abdulahad Ashurov and Zuhriddin Hamidjonov E3S Web of Conf., 508 (2024) 02001 Published online: 05 April 2024 DOI: 10.1051/e3sconf/202450802001