HUUM CLIFF Mini 3.5 kW Compact Wall-Mounted Electric Sauna Heater

The HUUM Cliff Mini is a compact electric sauna heater designed specifically for small indoor saunas, making it well suited for 1–2 users. Despite its slim form, it delivers a true sauna experience with steady heat and ample steam, reflecting HUUM’s consistent focus on quality and thoughtful engineering.

Similar to the HUUM Steel Mini, the Cliff Mini accommodates 60 kg (132 lbs) of stones. This generous stone capacity allows water to be poured directly over the stones, producing smooth, lasting steam and maintaining comfortable heat throughout each session.

Compact Design with Full-Scale Capability

Traditionally, small saunas were limited to basic heaters with low stone capacity and modest performance. The Cliff Mini and Steel Mini changed that standard by introducing modern design, Wi-Fi control compatibility, and operating temperatures of up to 110°C (230°F)—features not commonly available in compact heaters.

With its clean, minimalist profile and very short safety clearances, the Cliff Mini is well suited for tight installations. It offers flexibility in placement while maintaining reliable performance and a refined appearance, making it a practical option for compact sauna spaces.

Heater Includes

• Adjustable legs (lift heater up to 7 cm)

Additional Requirements

• UKU sauna control system

• 60 kg (132 lbs) of sauna stones (3–5 cm / 1.2–2 in diameter)

Details

• Sauna room size: 3–5 m³ (106–177 ft³)

• Stone capacity: 60 kg (132.3 lb)

• Weight: 15 kg (33 lb)

• Height: 975 mm (38.4 in)

• Width: 270 mm (10.6 in)

• Depth: 160 mm (6.3 in)

• Maximum temperature: 110°C

• Safety distances: See Drawing tab below

Please note: Electrical installation is not included. For safety and compliance, all electrical work should be carried out by a licensed electrician, following local electrical codes and the manufacturer’s installation guidelines.