KLAFS
The German luxury sauna house — engineering where everyone else does carpentry.
What they're known for
The S1 sauna that retracts to the depth of a wardrobe — German sauna building at the architectural tier.
KLAFS has been building saunas in Schwäbisch Hall since 1928 and operates at a tier most of the category doesn't attempt. The S1 is the calling card: a full sauna that expands at the push of a button and retracts to the depth of a wardrobe when you're done — the answer to the apartment problem, engineered like a piece of German industrial design because it is one. The SANARIUM runs five climates in one cabin, from classic Finnish heat to gentle herbal steam.
This is the spec for hotels, spas, and residences where the sauna is an architectural feature rather than a kit in the yard. Dealer-installed, priced accordingly, and the reference point the rest of the luxury tier measures against.
In the directory
2 products
S11
KLAFS' design-forward indoor sauna, created with Design Studio F. A. Porsche and winner of a 2024 Red Dot Design Award. Japanese-inspired interior with floating benches, finely dimensioned wooden slats, and a luminous Washi paper wall, plus choreographed light-and-sound ceremonies that turn a session into a multisensory ritual. Freestanding FERO heater with Finnish olivine stones, touchscreen control, and a choice of freestanding or built-in installation. UL certified.
S1
The world's first and only expandable sauna: at the press of a button the S1 extends from a retracted depth of just 24 inches to a full 63-inch cabin in about 40 seconds, then collapses to wardrobe depth when you're done — the answer to the apartment problem. SANARIUM climate system runs five distinct heat-and-humidity modes from a dry Finnish sauna to tropical steam, with the VARIUS heater hidden under the bench, app and touchscreen control, Bluetooth speakers, and dimmable backrest lighting. Available in three sizes; winner of the Red Dot, iF, and German Design awards. Arrives Summer 2026.
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