A centrifugal pump for household appliances comprising a cover (1) having:—a first face internal to the pump adapted to be in contact with an operating fluid, and a second face external to the pump, opposite to the first face and provided with an annular groove (16) forming a projection inwards of the pump,—a heating element (11) fixed in the annular groove (16),—a first support element (21) arranged on the second face and provided with a first constraint (31) adapted to be fixed to a first safety device (41), said first support element (21) being in thermal contact with said operating fluid, whereby the first safety device (41) is adapted to come in thermal contact with the operating fluid,—a second support element (22) arranged on the second face, distinct from the first support element (21) and provided with a second constraint (32) adapted to be fixed to a second safety device (42), said second support element (22) being in thermal contact with said heating element (11), whereby the second safety device (42) is adapted to come in thermal contact with the heating element (11).