HUUM CLIFF 9 (9 kW) Electric Sauna Heater

Optimize your sauna experience with the HUUM CLIFF 9, a high-performance electric heater designed specifically for saunas where floor space is a premium. This slim, sculptural heater combines modern Nordic aesthetics with precision engineering, allowing for remarkably small safety distances to walls. Perfect for custom-built residential or light commercial saunas, the CLIFF 9 ensures a luxurious, soft steam (Loyly) experience characteristic of a premium Estonian spa.

Despite its slender profile, the CLIFF 9 features a high stone capacity and a unique internal air duct structure that allows it to heat 25% faster than comparable heaters in its class.

Slim & Space-Saving Design

The CLIFF series is engineered for installations where maximizing interior space is a priority. Its well-optimized, freestanding structure allows for efficient placement in larger sauna rooms where traditional heaters would be too bulky. For this 9 kW model, the safety distance from combustible walls is a well-managed 9.45 inches, ensuring a safe installation without sacrificing performance.

Superior Heating & Steam

The HUUM CLIFF 9 is built with an integrated internal air duct that optimizes airflow, significantly reducing heat-up times and ensuring an even thermal climate throughout the room. With a stone capacity of 165 lbs (75 kg), the heater provides exceptional heat retention and steam production. When water is poured over the stones, the CLIFF 9 generates the soft, consistent steam that is essential for an authentic Finnish or Estonian sauna session.

Durable Stainless Steel Craftsmanship

Each HUUM heater is precision-crafted in Estonia using high-grade stainless steel for maximum durability and corrosion resistance. The sculptural, vertically-oriented cage design is not just a visual statement; it is a functional choice that exposes a significant surface area of the stones to the air for efficient heat radiation.

Easy Operation & Smart Integration

Designed for the modern home, the CLIFF 9 (9 kW) operates on a standard 240V 1-phase connection (50 amp). It is designed to be paired with an external control system, such as the HUUM UKU series, which allows for precise temperature management and, with the Wi-Fi option, the ability to preheat your sauna directly from your smartphone via the HUUM mobile app.

Features

• Slim & Vertical Profile: Optimized for saunas with limited interior space.

• Rapid Heating: Integrated air duct ensures 25% faster heat-up times.

• Freestanding Stability: Freestanding design allows for flexible placement.

• High Stone Capacity: Holds 165 lbs of stones for superior heat retention and steam.

• Premium Stainless Steel: Durable and rust-resistant Estonian craftsmanship.

• Modern Aesthetic: Minimalist cage design provides a sculptural centerpiece.

• Smart Control Compatible: Designed for use with HUUM UKU local or Wi-Fi controllers.

Specifications

• Power Output: 9 kW.

• Sauna Room Size: 283 – 460 cubic feet (8 – 13 m³).

• Stone Capacity: 165 lbs (75 kg).

• Dimensions: 10.6" W x 10.6" D x 38.4" H.

• Electrical: 240V, 1-phase, 37.5 Amps (50 amp breaker, 8 AWG wire).

• Weight: Approx. 35 lbs without stones.

• Warranty: Manufacturer's limited warranty included.

Recommended Accessories

• UKU Control System: Required for operation (Local or Wi-Fi versions available).

• Rounded Stones: HUUM recommends rounded olivine diabase stones for optimal airflow.

• CLIFF Safety Railing: Protects bathers from accidental contact with the heater.

• CLIFF Reflector: Can be used to further reduce safety distances to walls.

• Embedding Flange: Allows for a clean finish if partially installing the heater into sauna benches.