Huum Cliff 6kW electric sauna heater front view with sauna stones

Huum Cliff 6kW Sauna Heater

$2,347.00
Sale price  $2,347.00 Regular price 
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Huum Cliff 6kW electric sauna heater front view with sauna stones
HuumAuthorized dealer

Huum Cliff 6kW Sauna Heater

$2,347.00
Sale price  $2,347.00 Regular price 
Shipping Free Continental US
Estimated arrival Nov 17 – Nov 24 Dates are estimates. We'll push to beat them.

This model ships by freight and is delivered curbside. The carrier will call 24–48 hours ahead to book your delivery window.

Free shippingEstimated arrival Nov 17 – Nov 24
We aim to beat these estimates, and orders often arrive sooner. Ships by freight, delivered curbside. The carrier calls 24–48 hours ahead to book a window.
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Power
6 kW
240V (residential), 1 phase, 25 A
Room size
176–353 cu ft
Control
Sold separately
HUUM UKU control
Stones
Sold separately
Holds 165 lbs (5 boxes)
Heater size
11.3 in × 11.3 in × 38.3 in
35 lbs, floor mount
Warranty
3 years
Residential, 1 year commercial

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Description

Fit serious heat into a tighter space with the Huum Cliff 6kW electric sauna heater, made for sauna rooms of 176 to 353 cubic feet. The slim CLIFF has remarkably small safety distances, which makes it a good fit for saunas with limited space. Its internal air duct heats the room up to 25% faster.

It is sold as the heater only, which makes it a simple swap if you already have a HUUM UKU control and stones. It runs from a HUUM UKU control (UKU Local, UKU 4.2 Wi-Fi or UKU Glass, sold separately), and you can add a control and the five boxes of extra small sauna stones it needs (33 lbs each) on this page. Designed and engineered in Estonia.

Key Features
  • Cliff 6kW heater; UKU control and sauna stones sold separately
  • Floor-standing heater for sauna rooms of 176 to 353 cu. ft.
  • Direct contact between the stones and heating elements for a longer, milder heat
  • Stainless steel construction with industrial-quality, serviceable heating elements
  • Works with the HUUM UKU Local, UKU 4.2 Wi-Fi or UKU Glass control (sold separately)
  • Designed and engineered in Estonia
Specifications
  • Includes: Cliff 6kW heater, 2 prop blocks (for removing the stone rib slats), installation and operation manual. UKU control and sauna stones are sold separately
  • Power: 6 kW
  • Voltage: 240V (residential), 1 phase
  • Current draw: 25 A
  • Sauna room size: 176 to 353 cu. ft.
  • Stone capacity: 165 lbs (5 boxes of Extra Small stones, 1 to 2 in / 3 to 5 cm, 33 lbs each)
  • Heater dimensions: 11.3 in W x 11.3 in D x 38.3 in H
  • Heater weight: 35 lbs (15.87 kg)
  • Maximum temperature setting: 230°F (110°C)
  • Control: Separate HUUM UKU digital control required (UKU Local, UKU 4.2 Wi-Fi or UKU Glass, sold separately)
  • Mounting: Floor Mount
  • Certification: CE, SGS, IPX4
Shipping & Delivery

FREE Curbside Freight: Included on all continental US orders. Delivered on a pallet via liftgate truck to your driveway/curb.

Estimated Delivery: Typically arrives in 7–12 business days (dispatches in 3–5 business days).

Real-Time Tracking: Email tracking is sent as soon as your sauna ships.

Delivery Appointment: The freight carrier will call 24–48 hours in advance to schedule a delivery window.

Inspection Upon Arrival: Please inspect boxes before signing. Note any visible outer box damage on the driver's receipt, or refuse the shipment if severely damaged and contact us immediately.

Note: Delivery dates are estimates and are not guaranteed. Freight transit times may vary due to weather, location, or carrier delays. Placement inside a garage or covered area is strictly at the driver's discretion.

Assembly
Warranty

Includes a 3-year limited residential warranty and a 1-year limited commercial warranty (excluding heating elements).

Slim heater, serious heat.

Fit serious heat into a tighter space with the Huum Cliff 6kW electric sauna heater, made for sauna rooms of 176 to 353 cubic feet. The slim CLIFF has remarkably small safety distances, which makes it a good fit for saunas with limited space. Its internal air duct heats the room up to 25% faster.

It is sold as the heater only, which makes it a simple swap if you already have a HUUM UKU control and stones. It runs from a HUUM UKU control (UKU Local, UKU 4.2 Wi-Fi or UKU Glass, sold separately), and you can add a control and the five boxes of extra small sauna stones it needs (33 lbs each) on this page. Designed and engineered in Estonia.

Your reset is waiting.

  • Heater only. Cliff 6kW heater; UKU control and sauna stones sold separately.
  • Right-sized. Floor-standing heater for sauna rooms of 176 to 353 cu. ft.
  • Heat that touches the stones. Direct contact between the stones and heating elements for a longer, milder heat.
  • Stainless steel build. Stainless steel construction with industrial-quality, serviceable heating elements.
  • Pairs with UKU. Works with the HUUM UKU Local, UKU 4.2 Wi-Fi or UKU Glass control (sold separately).
  • Made in Estonia. Designed and engineered in Estonia.
IncludesCliff 6kW heater, 2 prop blocks (for removing the stone rib slats), installation and operation manual. UKU control and sauna stones are sold separately
Power6 kW
Voltage240V (residential), 1 phase
Current draw25 A
Sauna room size176 to 353 cu. ft.
Stone capacity165 lbs (5 boxes of Extra Small stones, 1 to 2 in / 3 to 5 cm, 33 lbs each)
Heater dimensions11.3 in W x 11.3 in D x 38.3 in H
Heater weight35 lbs (15.87 kg)
Maximum temperature setting230°F (110°C)
ControlSeparate HUUM UKU digital control required (UKU Local, UKU 4.2 Wi-Fi or UKU Glass, sold separately)
MountingFloor Mount
CertificationCE, SGS, IPX4

Free freight. On all continental US orders. Your heater arrives on a pallet by liftgate truck, delivered to the curb.

Typical timing. Dispatches in 3–5 business days, then arrives in 7–12 business days. You get email tracking once it ships.

Delivery appointment. The carrier calls 24–48 hours ahead to book a window. An adult needs to be there to sign.

Check it on arrival. Inspect the packaging before signing. Note any outer damage on the driver's receipt, or refuse the shipment if it's badly damaged, and contact us right away.

Delivery dates are estimates and not guaranteed. Weather, location or carrier delays can change transit times.

Install: Floor mount, following the clearances in the Huum manual. A licensed electrician should do the wiring.

Control: Your UKU control (sold separately) mounts outside the sauna room and connects to the heater and its sensors.

Stones: Rinse the stones, then stack them loosely around and above the elements so air can flow.

3-year limited residential warranty. Huum covers the heater for home use, starting from the date of purchase.

1-year limited commercial warranty. Commercial use is covered for one year, excluding heating elements.

What you'll need

The quick checklist before delivery day.

A licensed electrician
This heater needs a dedicated 240V (residential), 1 phase circuit (25 A) and a pro to size and wire it. Book early.
A HUUM UKU control
The heater runs from a UKU Local, UKU 4.2 Wi-Fi or UKU Glass control, sold separately. You can add one on this page.
Sauna stones
5 boxes (33 lbs each) of Extra Small stones, 1 to 2 in / 3 to 5 cm, sold separately. You can add them on this page.
The right room
Match the heater to your room volume: 176 to 353 cubic feet. Add volume for glass, tile or stone.
Clearances
Keep the heater clear of walls and benches by the distances in Huum's manual.
A little patience
Stones need loading properly. Rinse them, stack loosely and leave air gaps.

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