An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy, transparent
returns. If you're comparing options, we encourage you to review competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure that never
happens to you.
Official Distributor
An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy,
transparent returns. If you're comparing options, we encourage you to review
competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure
that never happens to you.
Starts at: $1,085.25/mo Learn More
Or
Monthly payments start at: $1,085.25/mo Learn More
Ships in 1-5 days at most
Includes $373.99 in bonuses with your order
The Primal Reset Guide
$24.99Free
Freight Protection, Fully Covered
$349Free
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Over $200
(877) 689-4898
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Hassle-free
This HUUM CLIFF 11STU heater kit delivers a sleek, slim-profile electric sauna solution for spaces up to ~566 cu ft.
It combines the 10.5 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.
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.
CLIFF 10.5kW Sauna Heater
UKU
Stones 12
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.
Allows for more accurate stone stacking.
Sleek black display with multiple color options (additional cost).
Settable 104°F to 230°F range.
Ensures secure operation.
Every review is verified — we never edit or filter feedback.
Verified reviews
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.
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.
Support
Nearly impossible to reach a real person. Endless chatbot loops, auto-replies, and unreturned emails.
Real humans. We answer quickly. Always here, always helpful
Order Processing
Orders often sit for days before being acknowledged. No clear confirmation, updates, or timelines.
Orders are processed immediately. You'll receive confirmation, tracking, and real-time updates within hours.
Shipping
Slow, vague, and unoptimized. Basic carriers, minimal tracking, and delayed delivery windows.
Fast, insured, and fully trackable shipping — optimized for speed and visibility every step of the way.
Pricing
Hidden fees, bait and switch tactics, post purchase price increases.
Our relationships guarantee the lowest prices. Transparent and fair. No surprises at checkout, and no shady
tactics after the sale.
Returns & Warranty
Policies are confusing and designed to frustrate, delay, and deny returns with zero accountability.
Clear, honest, and fast. Our return policy is built to protect your investment, not dodge responsibility.
Support
Frustrating automated responses
Fast, helpful and always supportive
Order Processing
Delays and lack of communication
Instant processing and updates
Shipping
Slow, unreliable and delayed service
Fast, insured, trackable shipping
Pricing
Deceptive pricing practices
Lowest prices, no surprises
Return & Warranty
Frustrating, misleading return policies
Clear, honest return policy
Read their reviews where they can't curate them, Trustpilot, not their own widget; read the one-star reviews and watch how they respond when freight goes sideways. You can see our Trustpilot reviews here
Ask what happens when a unit arrives damaged, you're listening for a person who owns it, not store-blames-manufacturer ping-pong.
Get the delivered price in writing before payment, "freight quoted after purchase" is the oldest move in the category.
Ask for a name, if nobody owns your order, nobody owns your problem.
What comes with every order
Bonus 1
Stop guessing and start your wellness journey with a plan. The Primal Reset Guide gives you a clear framework for building consistent routines, understanding your sessions, and staying on track as you progress. Instant delivery to your inbox after purchase.
Bonus 2
Your large order ships fully insured, so you're covered from our warehouse to your door. If something goes wrong, you don't have to spend hours on the phone with FedEx or the manufacturer. Our Shipping Concierge Service handles the calls, claims, and coordination for you, using our established relationships to get solutions moving faster. Inspect your delivery before signing off and document any damage right away.
| Brand | HUUM |
| Model | CLIFF 11STU |
| Kilowatt Rating | 10.5 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) |
HUUM’s limited warranty for the CLIFF 11 heater lasts 3 years for
private use and 1 year for commercial use. It covers defects in
materials or workmanship, provided the heater is installed, operated, and maintained according to
HUUM’s instructions. A licensed electrician must install and connect electrical equipment.
The warranty excludes heating elements, sauna stones, accessories, controller sensors, ordinary wear,
cosmetic issues, and damage caused by improper installation, storage, or use. For an approved claim,
HUUM may repair or replace the product, issue a refund, or agree to a price reduction. Contact an
authorized dealer with proof of purchase and claim details.
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.
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.
The 10.5 kW model is ideal for sauna rooms between 354 and 566 cubic feet.
Wi‑Fi is optional—choose UKU Wi‑Fi version or local UKU without Wi‑Fi at no extra cost.
Requires 165 lb of 1–2” olivine‑diabase stones (5 boxes total), included in the kit.
Internal ducting reduces heat‑up time by approximately 25% compared to standard units.
Minimal safety distances (around 6–12 cm) possible; complementary safety rail recommended for protection.
Yes—embedding flange accessory allows flush installation into a bench, with safety clearances maintained.
HUUM provides a 3-year limited warranty for private use on the heater and UKU control unit. Commercial use is covered for 1 year. Heating elements, sauna stones, accessories, and controller sensors are excluded from the warranty.
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