Part of the exclusive Heritage Architectural Series, the Heritage Lux Stromboli Large is a commanding architectural masterpiece, expanded to accommodate families and social gatherings without compromising its fortress-like mystique. Deriving its name from the volcanic Mediterranean isle, this 6-8 person sanctuary features a dramatic "Shou Sugi Ban" exterior—an ancient Japanese technique of charring wood to create a deep, obsidian finish that is naturally weather-resistant and visually arresting.

Stepping inside reveals a breathtaking "geode" effect: the dark, charred armor gives way to a luminous, pristine Aspen interior that feels soft to the touch and remains historically bright. Designed with a vertical "soft cube" silhouette, this sauna maximizes headroom and volume, while the expansive black-tinted glass front dissolves the boundary between the bather and the outdoors. Fully insulated for year-round US climates, the Stromboli Large offers a spacious, high-contrast retreat where modern design meets elemental power.