Taking a small natatorium in Tianjin for research object,the ventilation heating load of heating and ventilation system with hot blast and its ratio in total heating load in winter are calculated.

• 以天津市某小型室内游泳馆为研究对象,计算了冬季带送热风的供暖通风系统的通风热负荷及其占总热负荷的比例。