HUUM CLIFF 11STU Pkg CLIFF Series 11kW Sauna Heater Package
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Product Information
This HUUM CLIFF 11STU heater kit delivers a sleek, slim-profile electric sauna solution for spaces up to ~566 cu ft.
It combines the 11 kW stainless steel CLIFF heater, UKU digital control (optional Wi‑Fi), and 165 lb of premium olivine‑diabase stones. Designed in Estonia, it heats up 25% faster and ensures long-lasting, gentle steam.
Product Features
The CLIFF 11STU kit offers efficient and compact heating with smart control and abundant stones for plush steam.
Its stainless steel build withstands heavy-duty use while internal ducting accelerates heat-up.
Includes UKU controller with safety features and customizable settings—ideal for well-designed comfort.
Compact & Efficient
Premium Construction
Advanced Controls
Powerful Heating
HUUM CLIFF 11STU Pkg CLIFF Series 11kW Sauna Heater Package
- Durable Build: High-quality stainless steel construction for long-lasting performance.
- Efficient Heating: Vertical design maximizes heat distribution and energy efficiency.
- Stone Capacity: Holds 165 pounds of sauna stones (5 boxes sold separately).
- Efficient Heat Distribution: Direct contact between stones and heating elements for longer, milder heat.
What’s Included?
CLIFF 11kW Sauna Heater
- 11kW sauna heater
- 2 prop blocks (for removal of sauna rib slats)
- Installation and operation manual
- 5-Year limited warranty (excluding elements)
UKU
- Black control console
- Main control module
- Temperature sensor
- Door sensor
- Control display panel cable
- Temperature sensor cable
- Door sensor cable
- Installation and operation manual
- 5-Year limited warranty
Stones 12
- 165 lbs of 1" to 2" (3–5 cm) round Olivine sauna stones
Additional Features
The HUUM CLIFF 11STU Sauna Heater Package offers quick and efficient heating, making it ideal for home
and commercial saunas.
It features a space-saving slim design, removable ribs for precise stone placement, and direct contact
heating elements for a smoother, longer-lasting heat.
Smart UKU controls, Wi-Fi compatibility, safety sensors, and durable stainless steel construction ensure
reliability.
Removable Ribs
Allows for more accurate stone stacking.
Modern Touchscreen Panel
Sleek black display with multiple color options (additional cost).
Temperature Control
Settable 104°F to 230°F range.
Child Safety & Overheat Protection
Ensures secure operation.
About HUUM
HUUM is an innovative Estonian company creating high-quality sauna heaters that blend exquisite design, smart technology, and traditional craftsmanship.
Founded by Siim Nellis, a third-generation sauna stove producer, HUUM draws on decades of expertise and Nordic sauna traditions.
Their award-winning designs, like the DROP heater, prioritize gentle steam, efficiency, and sustainability. Made in Estonia, HUUM brings the authentic sauna experience to the world.
Why Choose Us?
Choose Peak Primal Wellness for a personalized, community-driven approach to health. We prioritize your well-being with high-quality products, tailored solutions, and 24/7 support.
As a family-owned business, we build lasting relationships, offering authentic, effective solutions to help you achieve your wellness goals.
Join our thriving community and embark on a journey toward optimal health with passionate professionals who genuinely care. At Peak Primal Wellness, you're not just a customer—you're family.
Why Thousands of Health and Fitness Lovers Choose
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Orders are processed immediately. You'll receive confirmation, tracking, and real-time updates within hours.
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Fast, insured, and fully trackable shipping — optimized for speed and visibility every step of the way.
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Our relationships guarantee the lowest prices. Transparent and fair. No surprises at checkout, and no shady
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Clear, honest, and fast. Our return policy is built to protect your investment, not dodge responsibility.
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Return & Warranty
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Clear, honest return policy
Specifications
| Brand | HUUM |
| Model | CLIFF 11STU |
| Kilowatt Rating | 11 kW |
| Room Capacity | 354–566 cu ft |
| Stone Capacity | 165 lb (75 kg) |
| Dimensions (WxDxH) | 10.6″×10.6″×38.4″ (270×270×975 mm) |
| Control Range | 104–230 °F (40–110 °C) |
| Warranty | 5 years (heater & controller) |
Warranty & Returns
Return Policy
Bathing Brands accepts returns of new, uninstalled items within 30 days of purchase. Contact us
promptly for a Return Authorization Number. For shipping damage, include photos and note if damage was
recorded upon delivery. Bathing Brands covers return shipping for damages or errors. For
change-of-mind returns, restocking fees are case-by-case, and customers cover shipping both ways. We
recommend insured shipping via the original method (Ground or LTL). Once returned, items are
inspected, and if damaged, you’ll be notified to file a claim with your shipper. Refunds are processed
after inspection. Custom or special-order items are non-returnable.
To request a return or refund, customers can use our contact form, email
(info@peakprimalwellness.com) , or phone
- (877) 689-4898. Once the product is inspected and confirmed to be in brand new condition, we will initiate the
refund, which typically takes 5-7 business days to post back to the original payment method. Refunds
can be applied via the customer’s preferred method, including card or bank transfer. Shipping
instructions and the return address will be provided upon contacting customer service. Please include
photos if the product arrives damaged.
Click here
to view our complete return policy for more details.
Shipping Policy
Customers may contact us by phone or email anytime to inquire about the status of their order. While we may not always have a tracking link available before the order ships, we are happy to check its current status for you. If an item is never received, please contact us immediately. We will promptly file a claim on your behalf and ship a replacement to ensure you receive your product as soon as possible. Click here to view our complete Shipping policy for more details.
Frequently Asked Questions
What sauna room size suits the CLIFF 11STU?
The 11 kW model is ideal for sauna rooms between 354 and 566 cubic feet.
Is Wi‑Fi control included?
Wi‑Fi is optional—choose UKU Wi‑Fi version or local UKU without Wi‑Fi at no extra cost.
How many stones are required?
Requires 165 lb of 1–2” olivine‑diabase stones (5 boxes total), included in the kit.
How fast does it heat?
Internal ducting reduces heat‑up time by approximately 25% compared to standard units.
Does it need special clearance or railings?
Minimal safety distances (around 6–12 cm) possible; complementary safety rail recommended for protection.
Can the heater be embedded into seating?
Yes—embedding flange accessory allows flush installation into a bench, with safety clearances maintained.
What warranty covers the heater?
HUUM provides a 5‑year limited warranty on both heater and UKU controller (excluding heating elements).
