HUUM Cliff Mini 3.5 kW Electric Sauna Heater
If you're looking for a reliable, efficient sauna heater for your smaller home sauna, the HUUM Cliff Mini 3.5 is an excellent choice. This wall-mounted heater combines cutting-edge design with exceptional performance, making it the perfect heater for smaller home saunas up to 177 cubic feet.
Designed for Compact Spaces
The HUUM Cliff Mini 3.5 kW (sometimes referred to as Cliff 4) sauna heater is specifically engineered for smaller sauna rooms, accommodating spaces from a minimum of 106 cubic feet to a maximum of 177 cubic feet.
What makes this 1PH electric sauna heater truly special is its extremely short safety distances. Unlike traditional sauna heaters that require significant clearance from walls and benches, the Cliff Mini's compact design allows it to fit comfortably even in the most space-challenged home saunas.
This HUUM Cliff electric sauna heater is wall-mounted, which means it doesn't take up valuable floor space in your sauna room. The intelligent mounting design ensures that you can maximize your seating area while still enjoying powerful, consistent heat throughout your sauna sessions.
Superior Rock Capacity for Better Heat
One of the standout features of the HUUM Cliff sauna heater is its impressive rock volume. Despite its compact size, the Cliff 4 has been engineered with a much higher capacity for sauna stones compared to other heaters in its class. This feature goes beyond looks — it truly elevates the quality of your sauna experience.
A larger volume of sauna stones means better heat retention and distribution. The stones act as a thermal mass, storing heat and releasing it gradually for a more consistent, soft warmth that envelopes the entire sauna room. The moment you pour water onto the stones, the change is instantly noticeable.
The generous rock capacity produces more steam, creating that authentic, luxurious sauna atmosphere you're looking for. This results in improved efficiency since the heater uses less energy to sustain ideal temperatures, providing a more enjoyable and consistent sauna experience for you and your family.
Award-Winning Design and Quality Construction
The HUUM Cliff 3.5 kW 240V heater combines practicality with elegant design. The Cliff Mini has earned recognition with a prestigious Red Dot product design award, a testament to its thoughtful engineering and aesthetic appeal. The contemporary design of this Huum Cliff heater will add an elegant, upscale look to your home sauna, transforming it from a simple wellness space into a sophisticated retreat.
Quality is at the heart of every HUUM product. The Cliff 4 is made from stainless steel in Estonia, where HUUM's commitment to craftsmanship and durability shines through.
The stainless steel construction ensures that your Cliff hot heater will withstand years of high-temperature use while maintaining its sleek appearance. This is a heater built to SGS standards, giving you confidence in both its safety and longevity.
Smart Control Options
Modern sauna experiences demand modern control options, and the HUUM electric sauna heater delivers. The Cliff Mini is compatible with advanced sauna control systems, including options for a sauna heater with Wi-Fi control through the HUUM app. This allows you to heat your sauna remotely, whether you’re at home or on the way back, so it’s perfectly warmed up and ready the moment you want to unwind.
The 240V sauna heater operates on standard residential electrical systems, making installation straightforward for qualified electricians. The combination of smart controls and efficient operation means you'll have complete command over your sauna experience at your fingertips.
Nordic Quality Meets Home Comfort
HUUM draws inspiration from the Nordic cliffs and the long tradition of sauna culture in Northern Europe. This heritage is evident in every aspect of the Cliff Mini's design and performance. The heater embodies the Nordic philosophy of combining natural elements, quality materials, and thoughtful design to create wellness experiences that enhance daily life.
The Right Choice for Your Home Sauna
When building a home sauna, it’s important to choose equipment that delivers consistent performance and long-lasting reliability. The HUUM sauna heater represents the perfect balance of compact size, powerful performance, and beautiful design. Its ability to fit in smaller spaces while delivering the heat output and stone capacity of larger units makes it an ideal solution for homeowners who want a professional-quality sauna experience without requiring a large dedicated space.
Whether you're building a new home sauna or upgrading an existing one, the Cliff Mini offers everything you need: efficient heating, generous steam production, smart control options, and award-winning design — all backed by European craftsmanship and quality standards.
Features
HUUM Cliff Mini 3.5 kW Electric Sauna Heater
- Slender design
- Suitable for use in small saunas with limited space
- Small safety distances
- Heats up to 25% faster due to internal air duct
- For sauna rooms from 106 to 177 cu. ft.
- Works with UKU controls (sold separately)
- 132 lb. stone capacity (required 4 boxes sold separately)
- Removable rib(s) for more accurate stacking of stones
- Direct contact between stones and heating elements
- More exposed stones create a longer and milder heat
- Stainless steel construction
- Stainless steel, industrial quality heating elements
- Wall-mount model
- Designed, engineered, and made in Estonia
- Dimensions: 10.6" W (270mm) x 6.3" D (160mm) x 38.4" H (975mm)
- Limited 3-year residential warranty and limited 1-year commercial warranty (excluding elements)
Includes
HUUM Cliff Mini 3.5 kW Electric Sauna Heater
- 4kW sauna heater
- 2 prop blocks (for removal of sauna rib slats)
- Installation and operation manual
- 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)
Specifications
| HUUM CLIFF Mini 4 Specifications |
| Model Name |
CLIFF MINI 4 |
| Kilowatt Rating |
4 kW |
| Minimum Cubic Feet |
106 cu. ft. |
| Maximum Cubic Feet |
177 cu. ft. |
| Heater Weight |
33 lbs (15kg) |
| Shipping Weight with Sauna Stones |
165 lbs (75kg) |
| 240V, Single Phase Amperage |
14.58 A |
| Width |
10.6" (270mm) |
| Depth |
6.3" (160mm) |
| Height |
38.4" (975mm) |
Manual
HUUM Cliff Mini 3.5 kW Electric Sauna Heater
FAQs
What sauna room size is ideal for the HUUM Cliff Mini 3.5 kW heater?
The suitable sauna room capacity should be between 106 and 177 cubic feet.
Is the HUUM Cliff Mini 3.5 kW suitable for small home saunas?
Yes, it's specifically designed as the perfect heater for smaller home saunas.
Does the HUUM Cliff Mini 3.5 kW require a separate control unit?
Yes, the HUUM Cliff Mini 3.5 kW needs a separate control unit (often the HUUM UKU control system), which must be bought separately. It also requires sauna stones to be added for proper installation and full functionality.
Can this heater be used for both dry and wet (steam) saunas?
Yes, the heater's high rock capacity allows it to produce excellent steam when water is poured over the sauna stones, while also working well for dry sauna sessions.
How long does it take for the HUUM Cliff Mini 3.5 kW to heat up a sauna?
The HUUM Cliff Mini 3.5 kW usually takes about 45 minutes to an hour to heat the sauna, depending on factors such as the room’s size, insulation quality, and ambient temperature.
What type of sauna stones should be used with the HUUM Cliff Mini 3.5 kW?
For the HUUM CLIFF Mini 3.5 kW sauna heater, you should use rounded natural sauna stones (preferably olivine-diabase) with a diameter of approx. 3-5 cm (1-2 inches).
Is the HUUM Cliff Mini 3.5 kW wall-mounted or floor-mounted?
It's a wall-mounted heater, which saves valuable floor space in your sauna.
What are the electrical requirements for installing the HUUM Cliff Mini 3.5 kW?
It operates on 240V electrical systems and is a 1PH (single-phase) electric sauna heater.
What is the highest temperature this heater is capable of reaching?
The HUUM Cliff Mini 3.5 kW electric sauna heater can reach a maximum temperature of 230 °F (approximately 110 °C).
Does the HUUM Cliff Mini 3.5 kW include sauna stones in the package?
The HUUM Cliff Mini 3.5 kW does not include sauna stones in the standard package. They need to be purchased separately.
What kind of maintenance is required for the HUUM Cliff Mini 3.5 kW?
Maintenance for the HUUM Cliff Mini 3.5 kW includes:
- Annual cleaning of the heater and removal of dust or debris.
- Checking and replacing sauna stones if they are cracked or deteriorated.
- Restacking stones to maintain good airflow and efficient heating.
- Ensure the stone container is properly filled — a sparse setup can cause overheating and pose a fire hazard.
Where is the HUUM Cliff Mini 3.5 kW sauna heater manufactured?
The HUUM Cliff Mini 3.5 kW sauna heater is made from stainless steel in Estonia.
