a heat exchange apparatus includes : a main body including a top panel and a bottom panel , the top panel superposed on top of the bottom panel to define a heat carrier passage therebetween ; a bracket fixed to an outside surface of the top panel ; a shaft member fixed to the bracket ; a temperature sensor support board including a penetration portion penetrated by the shaft member ; a temperature sensor fixed to the temperature sensor support board ; and a pressing member disposed at a distal end of the shaft member penetrating through the temperature sensor support board and pressing down the temperature sensor support board onto the bracket . the shaft member penetrating through the temperature sensor support board is disposed at a position to face the heat carrier passage via the top panel .