The second tier of Induction Heating Hot Tobacco Product segmentation concerns device types, which dictate performance characteristics, user experience, and supply‑chain implications. Closed‑loop systems integrate a proprietary heating element and a sealed tobacco stick, ensuring consistent temperature control and minimizing user‑handled components; this design dominates the premium market segment due to its reliability and reduced maintenance burden. Open‑loop configurations separate the heating unit from a loose leaf or plug‑in tobacco cartridge, offering greater flexibility in flavor selection and potentially lower upfront costs, but they introduce variability in heating efficiency and raise compliance considerations. A hybrid dual‑mode class combines elements of both, allowing users to switch between sealed sticks and interchangeable cartridges, thereby targeting a broader consumer base that values versatility. Each type contributes distinct cost structures and regulatory pathways, influencing overall market size: closed‑loop devices command higher average selling prices, open‑loop models drive volume through price sensitivity, and dual‑mode units create cross‑segment penetration that can expand the total addressable market for induction heating hot tobacco products.