5-Year Warranty
HUUM CLIFF Mini 4
Overview
The HUUM CLIFF Mini is a 4kW wall-mounted electric heater designed for small saunas where space is tight. Its intelligent build packs in a much larger rock volume than other heaters its size, so you get consistent, soft, high heat with more steam and better efficiency.
- Slim wall-mount design with short safety distances
- Large rock capacity for softer, longer-lasting heat
- Upscale, contemporary look for your home sauna
Key Features
Design & Build
- Slender, space-saving design for small saunas
- Short safety distances
- Stainless steel construction
- Wall-mount model
Heating & Performance
- Heats up to 25% faster via internal air duct
- More exposed stones create longer, milder heat
- Industrial-quality stainless steel heating elements
Stones & Steam
- 132 lb stone capacity (requires 4 boxes, sold separately)
- Direct stone-to-element contact
- Removable ribs for accurate stone stacking
Controls
- Works with UKU controls (sold separately)
Do your research first
This is a big purchase. We'd rather you get a fair look at the market — compare with these trusted sources before you decide.
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
Watch & learn
Installation Guide
Follow along with this step-by-step installation and assembly walkthrough so you know exactly what to expect. Our team is one message away if you need a hand.
to a friend
The CLIFF Mini 4 is perfect for my compact sauna. It holds a surprising amount of stones for a small heater, so the löyly is excellent. The design is gorgeous — looks like a sculpture. Heats my 2-person sauna in 30 minutes.
HUUM heaters are works of art. The Mini 4 looks incredible and performs even better. Great steam and quick heat-up. Had an electrician wire it.
Love the look and the heat quality. Just make sure your sauna is genuinely small — the 4kW is right at the limit for my space and takes a bit longer than I'd like to fully heat. For a true compact sauna it's perfect.
The stone capacity is the standout. You get soft, enveloping löyly that lasts. Beautiful minimalist design too.
Don't let the size fool you — it gets my small sauna roasting. The HUUM build quality is top tier and it looks amazing.