Available Models & kW Output:

• CLIFF Mini 4STU — 4 kW, wall-mount, up to 141 cu ft
• CLIFF 6STU — 6 kW, floor-standing, 170–280 cu ft
• CLIFF 9STU — 9 kW, floor-standing, 283–460 cu ft
• CLIFF 11STU — 11 kW, floor-standing, 354–566 cu ft

All models: 240V single-phase · control sold separately · Olivine diabase stones included · Made in Estonia

• HUUM CLIFF Heater (your selected kW)
• Mounting & leveling hardware
• Installation Manual
• Limited Residential Warranty

Not included (sold separately): sauna stones and a compatible UKU control unit.

Size your heater at roughly 1 kW per 45 cubic feet of insulated sauna room. Outdoor saunas, rooms with large glass panels, or poorly insulated spaces may require the next size up.

The CLIFF works with all major traditional sauna rooms including SaunaLife, Dundalk LeisureCraft, ThermaSol, and Finnmark barrel, cube, and cabin models — select the kW that matches your interior cubic footage.

Shipping: Ships FREE via freight carrier with curbside delivery to the contiguous U.S. Most orders dispatch within a few business days of purchase.

Warranty: 3-year limited residential / 1-year limited commercial (heating elements excluded). Backed by Sauna Company USA customer support.

Have questions about which size is right for your sauna? Use the heater sizing guide on our heaters page or contact us — we're happy to help you choose.

30-Day Return Policy

We accept returns on this product within 30 days of delivery. To initiate a return, email info@saunacompanyusa.com with your order number.

Shipping Damage — If the return is required due to damage, include photos of the damage and note whether shipping damage was recorded upon signing for delivery. Shipping costs are fully covered for carrier-caused damage.

No-Damage Returns — No restocking fee is charged. You will be issued a credit for the full amount paid, less any required new boxing fees of approximately $20–$50 depending on the product.

Damaged Product — If the product is damaged, you will be notified to file a claim with your shipper. We assist throughout the process.

View our full Return Policy for complete details.

Download Installation & User Manual — PDF

30-Day Return Policy

We accept returns on this product within 30 days of delivery. To initiate a return, email info@saunacompanyusa.com with your order number.

Shipping Damage — If the return is required due to damage, include photos of the damage and note whether shipping damage was recorded upon signing for delivery. Shipping costs are fully covered for carrier-caused damage.

No-Damage Returns — No restocking fee is charged. You will be issued a credit for the full amount paid, less any required new boxing fees of approximately $20–$50 depending on the product.

Damaged Product — If the product is damaged, you will be notified to file a claim with your shipper. We assist throughout the process.

View our full Return Policy for complete details.