The HUUM CLIFF 11 is a premium, ultra-slim electric sauna heater engineered for modern spaces where every inch matters. Featuring one of the narrowest footprints in the industry and exceptionally small safety clearances, the CLIFF 11 delivers uncompromising performance without requiring a large installation area—making it ideal for mid-sized sauna rooms ranging from 354 to 566 cubic feet.
Despite its compact size, this heater is a powerhouse. With a 165-lb stone capacity, the CLIFF 11 produces a deep, steady, and naturally soft heat that mimics the warmth of a traditional wood-burning sauna. More stones mean smoother temperature swings, richer steam, and a more immersive thermal experience.
The CLIFF’s intelligently optimized internal air duct accelerates warm-up time by up to 25%, while removable ribs make stone stacking easier and ensure efficient air flow. Constructed from high-grade stainless steel and built in Estonia, this heater reflects HUUM’s signature blend of minimalist design and engineering excellence.
Compatible with the full HUUM UKU Control ecosystem—including Wi-Fi options for smartphone preheating—the CLIFF 11 offers cutting-edge convenience. Slim, powerful, and visually clean, it’s the ideal heater for designers, builders, and homeowners seeking modern aesthetics with exceptional sauna performance.
