The HUUM CLIFF Mini 4 kW Package transforms small saunas into elegant retreats. Designed in Estonia, this slim, wall-mounted heater delivers rapid heat-up, gentle löyly, and precise digital control via the included UKU controller. With a 132 lb stone capacity and premium rounded Olivine Diabase stones included, it provides long-lasting steam in compact spaces. Optional Wi-Fi adds the convenience of remote preheating.
Key Features
- Space-Saving Design: Slim vertical profile for compact installations; wall-mounted with prop blocks.
- Rapid Heating: Integrated air duct helps warm the sauna up to ~25% faster.
- Large Stone Capacity: 132 lbs of 1″–2″ rounded Olivine Diabase stones (included) for soft, even steam.
- Soft Steam: Direct stone-to-element contact maintains gentle, long-lasting heat.
- Precision Stacking: Removable ribs support optimal airflow and stone placement.
- Durable Build: Stainless steel housing with industrial-grade elements.
- Smart Control: UKU Black digital controller with delay start, timer, safety lock; optional Wi-Fi app.
- Safety: Overheat protection, child lock, and SGS-certified elements.
- Warranty: 5-Year Limited (excludes heating elements).
UKU Control System (Black)
- Interface: Sleek controller with multilingual display (EN, DE, RU, IT, FI, EE, PL, FR).
- Functions: Temperature 104°F–230°F, scheduling, up to 48-hour delay, lighting & ventilation control.
- Wi-Fi (Optional): Mobile app for remote start, status, and schedules.
- Safety: Overheat protection and child safety lock.
- Dimensions: Panel ~2.2″ × 0.9″ × 4.1″; Main module ~3.5″ × 2.3″ × 5.6″.
What’s Included
- CLIFF Mini 4 kW Heater — wall-mounted unit, 2 prop blocks, installation hardware & manual
- UKU Control System (Black) — control panel, main module, temperature sensor, door sensor, cables, manuals
- Sauna Stones: 132 lbs of rounded Olivine Diabase (1″–2″)
- 5-Year Limited Warranty (excluding elements)
Technical Specifications
| Model | CLIFF Mini 4STU |
| Power Output | 4 kW |
| Sauna Room Size | 106–177 ft³ |
| Stone Capacity | 132 lbs (included) |
| Construction | Stainless steel |
| Dimensions (W × D × H) | 10.6″ × 6.3″ × 38.4″ (270 × 160 × 975 mm) |
| Mounting | Wall-mounted |
| Controls | UKU Digital Controller (Black; Wi-Fi optional) |
| Warranty | 5-Year Limited (excluding elements) |
| Origin | Estonia |
Installation & Use
- Mount securely on a non-combustible wall surface and maintain all clearances per the manual.
- Have a licensed electrician perform wiring to local code.
- Stack stones loosely (1″–2″) to maintain airflow; avoid over-packing.
- Use the UKU delay-start or schedules for convenient preheating; enable safety lock as needed.
- Periodically re-stack stones and inspect for cracking to preserve airflow and element life.
Why Choose the HUUM CLIFF Mini 4 kW Package?
- Purpose-built for compact saunas with fast heat-up and gentle steam.
- Premium build and Scandinavian aesthetic elevate any space.
- Smart UKU control (Wi-Fi optional) adds modern convenience.
- Complete kit with stones and controller included.
Shop with Confidence at MyLuxuryHomeSpa.com
- Authorized HUUM dealer with full warranty support
- Expert guidance on sizing, controls, and installation
- Fast, secure nationwide shipping
Shipping & Delivery
Do you ship to the USA? Yes, we provide shipping to the contiguous United States. Shipping costs and estimated delivery times are calculated at checkout based on the weight and dimensions of your order.
Are there import duties or taxes? Transparency Disclosure: Because your order ships from the DE, it may be subject to US import duties or customs fees. These fees are the responsibility of us.
How long is the "Handling Time"? Our standard handling time is 1–2 business days. This is the time it takes to process your order before it leaves our facility.
What is the "Transit Time"? Transit time to the USA typically takes 3–5 business days via our international carriers. You will receive a tracking link as soon as your order is dispatched.
Returns & Refunds
What is your return window? In alignment with Google’s best practices, we offer a 30-day return policy. You have 30 days from the date of delivery to request a return.
How do I start a return? To initiate a return, please email Contact@yourspapool.com with your order number. We will provide you with the appropriate return shipping address.
What condition must the items be in? Items must be in their original packaging, unused, and in the same condition that you received them.
When will I receive my refund? Once your return is received and inspected, we will process your refund within 10 business days. The credit will automatically be applied to your original method of payment.
