HUUM · Electric Sauna Heater
HUUM CLIFF Mini 4
CLIFF Mini Series 4kW Sauna Heater
HUUM CLIFF Mini 4
Overview
The compact HUUM CLIFF Mini 4kW sauna heater, with extremely short safety distances, is a wall-mounted electric sauna heater. Because of its intelligent design, the CLIFF Mini has a much higher rock volume than other sauna heaters its size. A larger rock capacity results in a consistent, soft, high heat for a better sauna experience, greater efficiency, and more steam. The CLIFF's contemporary design will add an elegant, upscale look to your home sauna.
Key Features
- Slender design
- Suitable for use in small saunas with limited space
- Small safety distances
- Heats up to 25% faster due to internal air duct
- 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
About HUUM
Nordic design, serious engineering
HUUM designs and manufactures its sauna heaters in Estonia, pairing clean Nordic minimalism with genuine engineering. Slim profiles, small safety distances, and generous, exposed stone capacity deliver a longer, milder, more enveloping löyly — controlled by HUUM's elegant UKU smart controls.
Every Detail
Specifications & Details
Specifications
Model: CLIFF MINI 4
Kilowatt Rating: 4kW
Minimum Cubic Feet: 106
Maximum Cubic Feet: 177
Heater Weight: 33 lbs (15 kg)
Shipping Weight with Sauna Stones: 165 lbs (75 kg)
240V, Single Phase Amperage: 14.58 Amps
Width: 10.6"W (270mm)
Depth: 6.3"D (160mm)
Height: 38.4"H (975mm)
What's Included
- 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)
Sauna Compatibility & Sizing
Designed for sauna rooms from 106–177 cubic feet. Operates on 240V single-phase.
The HUUM CLIFF Mini 4 suits traditional sauna rooms, including SaunaLife, Dundalk LeisureCraft, and ThermaSol barrel, cube, and cabin saunas — choose the model whose cubic-foot rating matches your room volume. Measure length × width × height of your sauna interior to find the right kW.
Shipping & Warranty
Shipping: Ships free via freight carrier with curbside delivery to the contiguous U.S. Most orders dispatch within a few business days.
Warranty: 3-year limited residential / 1-year limited commercial warranty (excluding elements). Backed by Sauna Co. customer support.
Many heaters require a compatible control unit and sauna stones, sold separately — contact our specialists for the right pairing.
Resources
Documents & Manuals
Installation & User Manual
to a friend
Fits my tiny room without crowding the bench and still delivers proper heat. The app scheduling is a treat on cold mornings. Sauna Co. tracked the shipment to the day.
Starting the sauna from the couch and walking out to a hot room is the luxury I didn't know I needed. The stones hold heat beautifully. Sauna Co. shipped fast and kept me informed.
The Mini 4 is perfect for my compact room and that open stone basket gives a wonderfully soft heat. The app control is genuinely useful for preheating. Delivery was prompt and well tracked.
This heater elevated the whole room — looks and performance. Soft steam, quick warm-up, dead reliable. The buying experience was smooth and personal.
I'll admit I bought the CLIFF Mini half for looks — that pile of stones is handsome. But it heats my small Finnmark barrel out by the corral faster than I expected and the steam is first-rate. Sauna Co. coordinated it with the sauna so both showed up the same week, and the fella on the phone didn't talk down to me about the wifi controller. Good outfit.
It sips power and heats quickly thanks to the exposed stones. Honestly the nicest-looking heater I've seen. Arrived a day early, no damage.
Don't let the size fool you — it throws a generous, even heat for a four-person space. The design is a bonus. Communication and packaging were both excellent.
Heat and looks are five stars; the UKU controller took me an evening to set up. Once configured it's seamless. Support answered my pairing question quickly and the box arrived intact.
The only thought to share is to plan where the wall control goes. The heater itself is faultless and beautiful. The rep explained the wiring clearly before purchase.