A system comprising a heating apparatus arranged to heat smokable material to volatilise at least one component of said smokable material and a smoking article for insertion into the apparatus; wherein the smoking article comprises: a body of smokable material; and an assembly comprising: a cooling segment for cooling the volatilised at least one component of the smokable material; a filter segment adjacent to the cooling segment for filtering the volatilised at least one component of the smokable material; and a mouth end segment adjacent to the filter segment for being received in a mouth of a user, wherein the cooling segment is located adjacent the body of smokable material between the body of smokable material and the filter segment; wherein the smoking article (101, 301) is arranged so that when the smoking article (101, 301) is fully inserted into the apparatus, a first section of the cooling segment is within the apparatus and a second section of the cooling segment extends outside of the apparatus and wherein, the second section of the cooling segment comprises a ventilation region to enable air to pass into the cooling segment to mix with the volatilised at least one component of the smokable material; and wherein the heating apparatus comprises: a housing having a first opening at a first end through which the smoking article (101, 301) can be inserted into the heating apparatus; and at least one heater arrangement arranged within the housing for heating the smokable material of the smoking article (101, 301) when in use. wherein the smoking article comprises: a body of smokable material; and an assembly comprising: a cooling segment for cooling the volatilised at least one component of the smokable material; a filter segment adjacent to the cooling segment for filtering the volatilised at least one component of the smokable material; and a mouth end segment adjacent to the filter segment for being received in a mouth of a user, wherein the cooling segment is located adjacent the body of smokable material between the body of smokable material and the filter segment; wherein the smoking article (101, 301) is arranged so that when the smoking article (101, 301) is fully inserted into the apparatus, a first section of the cooling segment is within the apparatus and a second section of the cooling segment extends outside of the apparatus and wherein, the second section of the cooling segment comprises a ventilation region to enable air to pass into the cooling segment to mix with the volatilised at least one component of the smokable material; and a body of smokable material; and an assembly comprising: a cooling segment for cooling the volatilised at least one component of the smokable material; a filter segment adjacent to the cooling segment for filtering the volatilised at least one component of the smokable material; and a mouth end segment adjacent to the filter segment for being received in a mouth of a user, wherein the cooling segment is located adjacent the body of smokable material between the body of smokable material and the filter segment; wherein the smoking article (101, 301) is arranged so that when the smoking article (101, 301) is fully inserted into the apparatus, a first section of the cooling segment is within the apparatus and a second section of the cooling segment extends outside of the apparatus and wherein, the second section of the cooling segment comprises a ventilation region to enable air to pass into the cooling segment to mix with the volatilised at least one component of the smokable material; and a cooling segment for cooling the volatilised at least one component of the smokable material; a filter segment adjacent to the cooling segment for filtering the volatilised at least one component of the smokable material; and a mouth end segment adjacent to the filter segment for being received in a mouth of a user, wherein the cooling segment is located adjacent the body of smokable material between the body of smokable material and the filter segment; wherein the smoking article (101, 301) is arranged so that when the smoking article (101, 301) is fully inserted into the apparatus, a first section of the cooling segment is within the apparatus and a second section of the cooling segment extends outside of the apparatus and wherein, the second section of the cooling segment comprises a ventilation region to enable air to pass into the cooling segment to mix with the volatilised at least one component of the smokable material; and wherein the heating apparatus comprises: a housing having a first opening at a first end through which the smoking article (101, 301) can be inserted into the heating apparatus; and at least one heater arrangement arranged within the housing for heating the smokable material of the smoking article (101, 301) when in use. a housing having a first opening at a first end through which the smoking article (101, 301) can be inserted into the heating apparatus; and at least one heater arrangement arranged within the housing for heating the smokable material of the smoking article (101, 301) when in use.