The blower convector comprises an underfloor convector trough in which is provided a heating and cooling component formed as a heat exchanger, together with a cross current blower with reversible direction of rotation. A suction and pressure chamber is formed by a dividing component parallel to the blower running wheel (1) and a form of the convector bath (2) matching the peripheral surface of the blower running wheel in the transition area between the wall and floor surface on the window wall side. The suction and pressure chambers are exchangeable against one another. The dividing component (3) is a bar or a division plate. The bar is fixed between the bearing shield of the blower running wheel.
