HUUM CLIFF Mini 4kW Electric Sauna Heater | Complete Package Options

Unmatched Heat and Lasting Steam

The CLIFF electric sauna heater offers unparalleled performance, reaching temperatures up to 230°F, the highest available in North America. While many other sauna heaters are limited to 194°F due to UL listings, the CLIFF heater’s design allows it to effortlessly achieve and maintain higher temperatures, providing an authentic and intense sauna experience.

Beyond just heat, the CLIFF heater maximizes the use of sauna stones by minimizing metal components, ensuring that most of the heat is radiated by the stones, not the metal. This process enhances the release of beneficial negative ions, which are commonly found in traditional wood-heated saunas. Combined with the large number of stones, the CLIFF heater creates soothing, curative steam that lasts longer, giving you a relaxing and rejuvenating sauna experience every time.

Efficient and Eco-Friendly Design withNordic Inspiration

The CLIFF electric sauna heater stands out with its stunning natural stone surface, echoing the rugged beauty of Nordic cliffs. Its eye-catching appearance is paired with an environmentally conscious design, as the body is made from stainless steel cutouts leftover from the production of STEEL heaters, reducing metal waste. The heater’s slim shape and small safety distances make it perfect for smaller sauna rooms. An internal air tunnel boosts heating efficiency by 25%, prolonging the life of the heating elements. With ample sauna stones, the CLIFF heater offers gentle, long-lasting steam, creating the ideal relaxing sauna experience.

• 4kW Sauna Heater
• 2 Prop Blocks (For Removal of Sauna Rib Slats)
• Installation and Operation Manual
• 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

• Dimensions: 10.6″ W (270mm) x 6.3″ D (160mm) x 38.4″ H (975mm)
• Limited 5-year warranty (excluding elements)
• Construction material: Stainless steel
• Dimensions: 6.75″ W (171.5mm) x 11.5″ D (160mm) x 38.5″ H (978mm)
• Weight: 33 lbs (14.96kg)
• Length / Width: 6.75″ (171.5mm)
• Width / Depth: 11.5″ (292.1mm)
• Height: 38.5″ (978mm)
• UKU Control, 133 lbs stones (Qty 4 x 33 lbs of 1″ – 2″ (3-5 cm) stones boxes)
• Package contents: 3.5kW sauna heater
  2 prop blocks (for removal of sauna rib slats)
  Installation and operation manual
  5-Year limited warranty (excluding elements)
• Slender design
• Suitable for use in small saunas with limited space
• Small safety distances
• Heats up to 25% faster due to internal air duct
• For sauna rooms from 123 to 212 cu. ft.
• Works with UKU controls (sold separately)
• 133 pound stone capacity (required 4 boxes sold separately)
• Removable rib(s) for more accurate stacking of stones
• Direct contact between stones and heating elements
• More exposed stones creates a longer and milder heat
• Stainless steel construction
• Stainless steel, industrial quality heating elements
• Wall-mount model
• Designed, engineered, and made in Estonia
• Fast heat up times: ~20-30 minutes

Plan your HUUM CLIFF installation with helpful manufacturer resources, including heater manuals, UKU control documentation, main module instructions, wiring diagrams, specification sheets, and installation videos.

Before installation, we recommend sharing these resources with your licensed electrician and sauna installer so they can review heater placement, electrical requirements, control setup, stone loading, safety clearances, and installation requirements in advance.

Always follow the official HUUM installation manuals, local electrical code, and guidance from your licensed electrician. NW Immersion is also here to help with heater sizing, package selection, and general installation planning before your order ships.

Click Here for the HUUM CLiffe Installation & Owner's Manual

Click Here for the HUUM Cliff Spec Diagram- includes safety clearances and electrical requirements

HUUM Stone Requirements

Elements Required

Huum warranty

Size Your Sauna

Click Here for Video on Installing Cliff Safety Rail

Click Here for Video on Installing Cliff and Steel Embedding Flange

Click Here for Video on Installing the Cliff Heat Reflector

Click Here for the HUUM UKU Control Installation & Owner's Manual

Click Here for Video on Installing the UKU Main Module

Click Here for Video on the UKU Control Installation

Click Here for Video on how to connect the UKU Control to WiFi

• Free Shipping: This order qualifies for free shipping within the contiguous United States.
• Processing Time: In-stock items typically leave the warehouse within 1–3 business days. This is the processing period before transit, not the final delivery time.
• Confirm Availability: Inventory can change quickly. Please call, text, or email NW Immersion before ordering if you need confirmation of current stock or have a specific delivery deadline.
• Multiple Packages: The heater, sauna stones, controls, and accessories may ship in separate boxes or on separate pallets. Packages may arrive on different days.
• Tracking: Tracking information will be emailed for each shipment as soon as it leaves the warehouse.
• Inspect Upon Arrival: Check every package for visible damage before accepting delivery. Photograph any damage and contact NW Immersion promptly so we can assist.

Questions about availability, delivery, heater sizing, controls, or installation requirements? Our U.S.-based sauna specialists are available by phone, text, or email.

Click Here for the HUUM Manufacturer Warranty

HUUM Manufacturer Warranty

Backed by HUUM’s manufacturer warranty when installed and used according to HUUM’s official instructions.

Warranty coverage may vary by component, installation type, use environment, maintenance, chimney connection, and fuel use. Sauna stones, chimney components, and accessories may each carry their own warranty terms.

As an Authorized HUUM Dealer, NW Immersion is here to help with stove sizing, product selection, delivery coordination, troubleshooting, warranty guidance, and long-term support.

Always refer to the official HUUM warranty documentation included with your stove for complete terms and final coverage details.