00703naa#a2200169#i#450# EN\\bibl\64152 20250427044410.7 2686-9896 20230504b2023####ek#y0engy0150####ca RU TO THE METHOD OF CALCULATION OF HEATING DEVICES OF HEATING SYSTEMS Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2023 1 с. Journal article local Санитарная техника. Санитарно-технические сооружения. Водоснабжение. 628 Kuz'min Sergey Ivanovich angtu.editorum.ru