HUUM CLIFF Mini 4STU Pkg CLIFF Mini Series 4kW Sauna Heater Package
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Product Information
The HUUM CLIFF Mini 4STU is a sleek, wall-mounted 4 kW electric sauna heater package, packaged with UKU digital controls (Wi‑Fi optional) and 132 lb of Olivine sauna stones.
Designed for compact spaces, it heats quickly and evenly for cabins from 106 to 177 cu ft. Constructed in Estonia with stainless steel
Product Features
This package combines high-efficiency heating with smart controls and robust materials for an elevated sauna experience.
Featuring an internal air duct for rapid heating, a precise UKU controller, heavy-duty stones, and compact design, it’s ideal for small saunas seeking quality and control.
132 lb stones
Fast heating
Slim wall-mount
Wi‑Fi UKU control
HUUM CLIFF Mini 4STU Pkg CLIFF Mini Series 4kW Sauna Heater Package
-
Compact Wall-Mount Design:
Slim vertical profile saves space and mounts securely to walls, ideal for small sauna rooms with tight clearances. -
Fast Heat-Up System:
Internal air duct design improves airflow, reducing heat-up time by up to 25% compared to conventional heaters. -
Generous Stone Capacity:
Holds 132 lb of Olivine diabase stones, producing soft, even heat with long-lasting steam output. -
Advanced Digital Controls:
UKU control panel (Wi-Fi optional) enables timed sessions, delay start, lighting, and temperature regulation. -
Enhanced Safety Features:
Includes overheat protection, door sensor, and child-lock for safe residential or commercial sauna use. -
Durable Stainless Steel Build:
Crafted in Estonia with corrosion-resistant stainless steel for lasting performance and modern aesthetics.
What’s Included?
CLIFF Mini 4 kW sauna heater
- 132 lbs. of 1″–2″ (3–5 cm) round Olivine sauna stones (12 pieces)
- Two prop blocks (for removal of sauna rib slats)
- Installation and operation manual (for heater)
- 5-Year limited warranty (excluding heating elements)
UKU
- UKU Black control console
- Main UKU control module
- Temperature sensor
- Door sensor
- Control display panel cable
- Temperature sensor cable
- Door sensor cable
- Installation and operation manual (for controller)
- 5-Year limited warranty (UKU system)
Stones 12
- 132 lbs. of 1" to 2" (3-5 cm) round Olivine sauna stones
Additional Features
Smart UKU console, door sensor, delay start, child‑lock—blending convenience, safety, and control in one compact heater kit.
Overheat Cut-Off
Safeguards heater from excessive temperatures thanks to built-in thermal protection.
Delay Start Timer
Program the sauna to prep hours in advance, up to 48 hours.
Door Sensor
Halts heating when door opens, preserving set temperature and energy.
Child‑Lock Protection
Prevents accidental changes to settings for safer home use.
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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Real humans. We answer quickly. Always here, always helpful
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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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Specifications
| Brand | HUUM |
| Model | CLIFF Mini 4STU |
| Kilowatt Rating | 4 kW |
| Capacity (stones) | 132 lb (60 kg) |
| Recommended Room Size | 106–177 cu ft |
| Heater Weight | 33 lb (15 kg) |
| Shipping Weight | 165 lb (75 kg) |
| Voltage/Amps | 240 V single‑phase, 14.6 A |
| Dimensions (HxWxD) | 38.4″×10.6″×6.3″ |
| Temperature Range | 104–230 °F |
| Safety Features | Door sensor, overheat protection, child lock |
| Warranty | 5‑year limited (heater elements excluded) |
| Manuals | |
| Installation and Operational Manual | Cliff IOM |
| Elements Required | HUUM ER |
| UKU | |
| Installation and Operational Manual | UKU IOM |
| Install Diagram | UKU Installation HUUM Glass & Mirror Diagram |
| Stones | |
| Stone Requirment | HUUM SR |
| Extension Box | Extension Box IM |
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 sizes suit the CLIFF Mini?
It's ideal for sauna rooms between 106 to 177 cu ft, delivering consistent and efficient heating in compact spaces.
Does the heater include Wi‑Fi control?
The UKU control console is available in both local and Wi‑Fi versions. Be sure to select the correct model at purchase.
How quickly does it heat the sauna?
The CLIFF Mini features an internal air duct system that increases airflow and reduces heat-up time by up to 25%.
How many stones does it hold?
The heater includes 132 lbs of 1″–2″ round Olivine diabase sauna stones, providing gentle and consistent steam.
What are the electrical requirements?
The heater runs on a 240 V single-phase circuit drawing 14.6 amps. Installation should be performed by a qualified electrician.
Is the heater safe for home use?
Yes. It includes overheat protection, a door sensor, and child-lock for safe and secure operation in home saunas.
What does the warranty cover?
The heater and control system come with a 5-year limited warranty, excluding the heating elements. Manuals and support are included.
