Aerosol-generating system with multiple heating elements

An aerosol-generating system comprising:

• a reservoir configured to contain an aerosol-forming substrate;
• and
• a vaporizing unit configured to be releasably connected to the reservoir, the vaporizing unit including,
• a reservoir connecting end,
• a first heating element spaced apart from the reservoir in a direction of a longitudinal axis of the aerosol-generating system,
• a second heating element spaced apart from the reservoir in the direction of the longitudinal axis of the aerosol-generating system,
• a first liquid transfer element configured to deliver liquid aerosol-forming substrate aerosol-forming substrate to the first heating element from a source of liquid aerosol-forming substrate when a source of liquid aerosol-forming substrate is releasably connected to the reservoir connecting end, the first liquid transfer element having a first main portion extending in a first direction at the first heating element, and
• a second liquid transfer element configured to deliver liquid aerosol-forming substrate to the second heating element from a source of liquid aerosol-forming substrate when a source of liquid aerosol-forming substrate is releasably connected to the reservoir connecting end, the second liquid transfer element having a second main portion extending in a second direction at the second heating element,
• wherein the first and second directions are different, and
• wherein a distance from the reservoir connecting end to second heating element at the second liquid transfer element is greater than a distance from the reservoir connecting end to the first heating element at the first liquid transfer element.