HUUM CLIFF MINI 4kW Electric Sauna Heater

The HUUM STEEL Mini 4 kW sauna heater combines minimalist Nordic aesthetics with precision-engineered performance for small sauna spaces. Handcrafted in Estonia, this slim floor-standing heater delivers the soft, even warmth of a traditional Finnish sauna while maintaining a sleek, modern presence. With its tall, narrow form and 133 lb stone capacity, the STEEL Mini ensures long-lasting radiant heat in rooms up to 212 cu ft, providing an authentic spa experience in a compact footprint.

Features

• Compact floor-standing heater with clean, vertical design.

 

• Heats sauna rooms up to 212 cu ft (6 m³).

 

• 4 kW stainless-steel heating elements made in Finland.

 

• 133 lb (60 kg) stone capacity for deep, balanced heat.

 

• Narrow profile ideal for small home saunas or tight spaces.

 

• Compatible with HUUM UKU Local, Wi-Fi, and Glass controllers (sold separately).

 

• Marine-grade stainless-steel construction for durability and heat retention.

 

• Handcrafted in Estonia and UL-listed for safety and efficiency.

 

• Energy-efficient design with authentic Finnish steam output.

Specifications

Installation

Install the HUUM STEEL Mini 4 kW on a level, non-combustible surface with proper clearances as outlined in the HUUM installation guide. Electrical installation must be completed by a licensed electrician. Use only HUUM-approved stones for safe, efficient performance and optimal steam quality.

What’s Included

• HUUM STEEL Mini 4 kW sauna heater

 

• Mounting hardware and adjustable feet

 

• Instruction manual

 

• Manufacturer warranty
  (Sauna stones and controller sold separately.)

Shipping & Delivery

All HUUM heaters ship free across the continental U.S. via LTL freight. Orders process within 2–4 business days and typically arrive within 5–10 business days. Each unit ships factory-sealed and securely packaged for protection during transit. Signature required upon delivery.