The present disclosure relates to an atomizer (801; 901; 1001) for an aerosol delivery device, the atomizer (801; 901; 1001) comprising:a porous liquid transport element (836; 936; 1036; 1136; 1236) comprising a material containing an open pore network;a first heater (833a; 933a; 1033a; 1133a; 1233a) having a heating surface (Ha); anda second heater (833b; 933b; 1033b; 1233b) having a heating surface (Hb);wherein the first heater (833a; 933a; 1033a; 1133a; 1233a) and the second heater (833b; 933b; 1033b; 1233b) are aligned in a substantially parallel arrangement with the porous liquid transport element positioned therebetween, the first heater (833a; 933a; 1033a; 1133a; 1233a) and the second heater (833b; 933b; 1033b; 1233b) being spaced apart with the respective heating surfaces (Ha, Hb) facing each other such that the porous liquid transport element (836; 936; 1036; 1136; 1236) is in a radiant heating arrangement with the heating surface (Ha) of the first heater (833a; 933a; 1033a; 1133a; 1233a) and the heating surface (Hb) of the second heater (833b; 933b; 1033b; 1233b) and is not in direct physical contact with the heating surface (Ha) of the first heater (833a; 933a; 1033a; 1133a; 1233a) or the heating surface (Hb) of the second heater (833b; 933b; 1033b; 1233b).