A door (1) for refrigerators is described which comprises: - a pair of plates (5, 35), made of thermally insulating material, facing and joined by a spacer (60) which divides an interspace (65) between the plates of the pair of plates (5, 35) into a closed chamber (90) and at least one longitudinal channel (95, 100) parallel to a first side (25, 50) of the pair of plates, - a heating element (105) fixed to one of the plates (5, 35) inside the closed chamber (90), - a housing seat (S) contained in the longitudinal channel (95,100) which extends longitudinally along an axial section of the longitudinal channel (95,100) and which flows into an outlet opening (140) at a second side (30, 55) adjacent to the first side of the pair of plates (5, 35), - an electrical connection element (130) provided with a first end connected to the heating element (105) and an opposing second end which protrudes from the outlet opening (140) of the housing seat (S), at least one elongated section of the electrical connection element (130) being contained in the housing seat (S).
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