HUUM CLIFF 9
Overview
The Cliff 9kW sauna heater is a slim electric sauna heater with remarkably small safety distances, which makes it perfect for saunas with limited spaces.
Key Features
- Slim design
- Suitable for use in saunas with limited space
- Small safety distances
- Heats up to 25% faster due to internal air duct
- Works with UKU controls (sold separately)
- 165 lb. stone capacity (required 5 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
- Floor 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 9
Kilowatt Rating: 9kW
Minimum Cubic Feet: 283
Maximum Cubic Feet: 460
Heater Weight: 35.2 lbs (16 kg)
Shipping Weight with Sauna Stones: 200 lbs (91 kg)
240V, Single Phase Amperage: 37.5 Amps
Width: 10.6"W (270mm)
Depth: 10.6"D (270mm)
Height: 38.4"H (975mm)
What's Included
- 9kW 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 283–460 cubic feet. Operates on 240V single-phase.
The HUUM CLIFF 9 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
Plenty of power for a nine-kilowatt-class space and the stones hold warmth long after. The app preheat is the cherry on top. Communication from Sauna Co. was excellent throughout.
Big talk, I know, but the CLIFF 9 backs it up. That open mountain of stones throws steam that hits like the real thing, and it heats my Serenity barrel full of beer-league teammates without flinching. Sauna Co. lined up the heater and the sauna together and never once dropped the ball on updates. Top outfit.
The CLIFF 9 is a serious unit — give it the wiring and clearances it deserves. Support spelled out the requirements before I bought. Once installed, it's magnificent.
The huge stone capacity means the steam just keeps coming, soft and full. It's also the best-looking heater I've ever seen. Delivery was prompt and the crate immaculate.
From the heat to the design to the buying experience, it all felt first-class. The team answered every question patiently. Worth the investment.
Stone column, soft steam, even heat — it does everything beautifully and looks stunning. Arrived a day early, perfectly packed. Couldn't be more pleased.