DIN V 18599-5-2016 建筑能源效率.加热,冷却,通风,生活热水和照明对净能源,最终能源及一次能源需求的计算.第5部分:供暖系统最终能源需求
Energy efficiency of buildings - Calculation of the net, final and primary energy demand for heating, cooling, ventilation, domestic hot water and lighting - Part 5: Final energy demand of heating systems