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HUUM

CLIFF SLIM | Electric Sauna Heater | Stainless Steal | Digital Control + Sauna Stones | By Huum

CLIFF SLIM | Electric Sauna Heater | Stainless Steal | Digital Control + Sauna Stones | By Huum

$4,099.97 USD
$4,099.97 USD
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HUUM | CLIFF Slim | Electric Stainless Steel Sauna Heater | 165 lbs Stone Capacity · 6 cm Safety Distance · Internal Air Duct · 25% Faster Heat-Up · UKU Compatible · Stones Sold Separately | Made In Estonia

HUUM CLIFF Slim | Slim Electric Sauna Heater · 165 lbs Stones · 6 cm Safety Distance · 25% Faster Heat-Up · UKU Compatible 🔥

Slim Profile — Space-Saving Design Industrial Stainless Steel 🪨 165 lbs Stone Capacity 📐 6 cm Safety Distance 💨 Internal Air Duct — 25% Faster Heat-Up Direct Stone-to-Element Contact 🎛️ UKU Compatible (Sold Separately) Extension Box Compatible Stones Sold Separately — 5-Box Sets 🇪🇪 Made In Estonia 🚚 Delivered Within 10 Business Days

The HUUM CLIFF Slim is a slim-profile electric stainless steel sauna heater built around one standout specification: a 6 cm safety distance. At just 6 centimetres from wall and bench surfaces, the CLIFF Slim installs in spaces where no other heater in the HUUM range can go — maximising usable bench area and eliminating the layout compromises that larger safety clearance requirements force. Despite the slim form, the CLIFF Slim holds 165 lbs of stones — more than the CLIFF Mini 4's high rock volume — producing long-lasting, gentle heat and abundant steam throughout every session.

The internal air duct delivers heat-up times up to 25% faster than conventional heaters. Direct stone-to-element contact maximises heat transference. Compatible with HUUM's UKU control system and extension box (both sold separately) for precise remote temperature management. Industrial-quality stainless steel construction. Stones are sold separately in five-box sets. Made in Estonia.

6 cm safety distance. 165 lbs of stone. 25% faster heat-up. The HUUM CLIFF Slim — the heater that fits where others can't. 🌿

📐
6 cm Safety Distance — The CLIFF Slim's Defining Specification
6 centimetres is the CLIFF Slim's minimum required safety distance from walls and bench surfaces — among the smallest of any electric sauna heater available. In a compact sauna room where every centimetre of bench space matters, the difference between a 6 cm and a 20+ cm safety distance translates directly to usable seating area. The CLIFF Slim installs closer to walls and benches than any comparably powered heater, giving installers and homeowners the freedom to design around the space they have rather than around the heater's clearance requirements.
📐
Safety Distance
6 cm
🪨
Stone Capacity
165 lbs
💨
Heat-Up Speed
25% Faster
🎛️
Control
UKU Compatible

HUUM CLIFF Range — Compare Models

Also Available
CLIFF Mini 4
3.5 kW · Removable ribs · High rock volume · Up to 212 cu ft · 5-yr warranty
✅ This Model
CLIFF Slim
165 lbs stones · 6 cm safety distance · Slim profile · UKU compatible
6 cm Safety Distance
Also Available
Steel Mini 4
3.5 kW · 133 lbs · Short safety distances · 5-yr warranty
📐6 cm safety distance — the smallest clearance in the HUUM range — 6 centimetres from wall and bench surfaces is the CLIFF Slim's headline specification and the primary reason to choose it over any other compact HUUM heater. The majority of electric heaters require 20 cm or more of clearance on all sides — in a compact sauna, this directly reduces usable bench depth and room flexibility. The CLIFF Slim's 6 cm requirement eliminates this compromise, allowing installation flush to walls and benches in the tightest sauna layouts without any safety trade-off
🪵Slim profile — designed for compact sauna rooms — the CLIFF Slim's narrow form factor is engineered from the ground up for sauna rooms where space is genuinely constrained. The slim profile combined with the 6 cm safety distance makes it the most space-efficient electric heater in the HUUM range — the correct specification for any compact installation where a standard-profile heater would compromise the room
🪨165 lbs stone capacity — long-lasting, gentle heat — despite the slim profile, the CLIFF Slim holds 165 lbs of stones in direct contact with the heating elements. 165 lbs is more than the CLIFF Mini 4's high rock volume in a similarly compact form — producing long-lasting, genuinely mild heat and abundant steam throughout the session. Stones are sold separately in five-box sets — contact us for stone purchasing alongside your CLIFF Slim order
💨Internal air duct — 25% faster heat-up — the CLIFF Slim carries the internal air duct technology shared across the HUUM CLIFF and Steel ranges. Airflow channelled through the heater internals reduces time-to-temperature by up to 25% compared to conventional heaters — faster heat-up in a compact space where session readiness matters for daily use
🎛️UKU control + extension box compatible — sold separately — the CLIFF Slim is compatible with HUUM's UKU control system and extension box for precise remote temperature management. Both are sold separately — contact us to configure the right control setup for your installation. The UKU enables delayed start, temperature setting, and timer management from inside or outside the sauna
🏗️Industrial-quality stainless steel — made in Estonia — industrial-grade stainless steel construction with direct stone-to-element contact for reliable, long-term performance in regular daily use. Designed, engineered, and manufactured in Estonia to HUUM's precision craftsmanship standards
Brand / Model HUUM — CLIFF Slim
Manufacturing Made in Estonia
Profile Slim — compact sauna specialist
Construction Industrial-quality stainless steel
Safety distance 6 cm — minimum from walls and bench surfaces
Stone capacity 165 lbs — direct element contact
Stones Sold separately — 5-box sets
Air duct Internal — 25% faster heat-up
Controls UKU compatible + extension box (sold separately)
🎛️
UKU controls and extension box sold separately. Contact us to add UKU controls and/or an extension box to your order for complete remote session management.

🚚 Delivered within 10 business days.

📐 6 cm Safety Distance  ·  🪨 165 lbs Stones  ·  💨 25% Faster Heat-Up  ·  🎛️ UKU Compatible  ·  🪵 Slim Profile  ·  🇪🇪 Estonia

HUUM CLIFF Slim — 6 cm. The Heater That Fits Where Others Can't. 🔥

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