HUUM CLIFF stainless steel and stone detail

HUUM CLIFF Mini 4.5kW

Name: HUUM CLIFF Mini 4.5kW Sauna Heater Package
Brand: HUUM
Price: 3385.0 USD
Availability: InStock

Electric Sauna Heater | HUUM

The HUUM CLIFF Mini 4STU sauna heater package brings the CLIFF design language to the smallest sauna rooms. This complete kit includes the wall-mounted CLIFF Mini heater, your choice of UKU control, and 132 lbs of sauna stones — the full stack for compact sauna rooms from 106 to 177 cubic feet.

The CLIFF Mini's slender profile and shallow 6.3" depth make it ideal for tight layouts where a floor-standing heater won't fit. Wall-mounted installation, direct stone-to-element contact, and an internal air duct deliver efficient heat-up and soft, consistent löyly in a small footprint.

Designed, engineered, and handcrafted in Estonia with industrial-grade stainless steel construction and heating elements. Rated at 4kW on 240V single-phase power with a 14.58A draw — your licensed electrician should plan for a 20A breaker and 12 AWG wire.

PRODUCT SHEET

HUUM CLIFF sauna heater studio product shot

HUUM CLIFF heater recessed in sauna bench

HUUM CLIFF heater in modern sauna interior

HUUM CLIFF Mini 4.5kW Sauna Heater Package

Sauna Controls: Digital (Local) Digital (Local) WiFi Enabled (UKU)

Controller Style: Classic - Black Classic - Black Classic - Gray Classic - White Wood Glass - Black Glass - Mirror Glass - Gold

Product variants

$3,385.00 USD

Free Shipping

Made In: Estonia

Using the highest quality parts & components

Description

Features

What's Included?

Size & Weight

Electrical Specs

Shipping & Delivery

Warranty

Documents

HUUM CLIFF Mini 4.5kW Sauna Heater Package

The HUUM CLIFF Mini 4STU sauna heater package includes the 4.5kW CLIFF heater, UKU control (Wi-Fi optional), and sauna stones — engineered for sauna rooms from 106 to 177 cubic feet.

KEY FEATURES

CLIFF Mini 4.5kW Sauna Heater

Slender wall-mounted design for small saunas
240V/1PH operation
For sauna rooms from 106 to 177 cu. ft.
Works with UKU controls
132 lb stone capacity
Direct contact between stones and heating elements
More exposed stones create a longer and milder heat
Removable rib(s) for more accurate stacking of stones
Stainless steel construction
Stainless steel, industrial quality heating elements
Wall-mount model
Heats up to 25% faster due to internal air duct
Small safety distances
Designed, engineered, and made in Estonia
Dimensions: 10.6"W (270mm) x 6.3"D (160mm) x 38.4"H (975mm)
Limited 3-year residential warranty and 1-year commercial warranty (excluding elements)
Slender design for small saunas with limited space

UKU Control

Sleek black control display panel
Multiple color options available (additional charges apply)
Settable on/off, time, temperature, and delay
Settable temperature range of 104-230°F
Delayed start up to 48hrs in advance
Optional built-in Wi-Fi interface for HUUM mobile app (additional charges apply)
8 language options: English, German, Russian, Italian, Finnish, Estonian, Polish and French
Inside/outside sauna room installation
Optional smart heating setting
Available decorative control display panels
Displays set temperature and room temperature
Temperature sensor
Door sensor to keep the heat inside the room
Remotely located main control module
Connects to lights and ventilation
Overheat protection
Child safety lock
Control Console Dimensions: 2.2"W (55mm) x 0.9"D (22mm) x 4.1"H (105mm)
Main Control Module Dimensions: 3.5"W (90mm) x 2.3"D (58mm) x 5.6"H (142mm)
Limited 3-year residential warranty and 1-year commercial warranty

Stones 12

Olivine diabase sauna stones
Rounded shape to complement heater design
Durable with high-heat capacity
Stones range from 1" to 2" (3-5 cm)

WHAT'S INCLUDED?

CLIFF Mini 4.5kW Sauna Heater

4.5kW 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)

UKU Control

Black Control Console
Main Control Module
Temperature Sensor
Door Sensor
Control Display Panel Cable
Temperature Sensor Cable
Door Sensor Cable
Installation and Operation Manual
3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty

Stones 12

132 lbs of 1" to 2" (3-5 cm) Round Sauna Stones

SIZE & WEIGHT

Shipping Weight with Sauna Stones: 165 lbs

Width: 10.6"
Depth: 6.3"
Height: 38.4"

ELECTRICAL SPECS

OVERVIEW

Electrical Spec Guide

240V, Single Phase Amperage
14.58 Amps

Kilowatt Rating: 4kW
Minimum Cubic Feet: 106 CF
Maximum Cubic Feet: 177 CF
Circuit Breaker Amperage: 20 Amps
Wire Size: 12 AWG

SHIPPING & DELIVERY

READY TO SHIP!

Please allow 5-7 business days transit time to receive your order once it has shipped. *This time frame pertains to orders placed within the continental United States and does not include Alaska and Hawaii.

CURBSIDE DELIVERY

The price you see is the price you pay. Shipping and standard curbside delivery is included in all US domestic lower 48 states.

DELIVERY DETAILS

This sauna heater is delivered fully assembled. It may be delivered Ground shipping or by a freight truck depending on size, weight, and location. If a freight truck is required, we'll reach out to schedule a delivery appointment. It may arrive on a wooden pallet for solid protection. The driver is responsible for “curbside delivery only” and will provide limited assistance at the site. Prior to shipping this product, we contact customers to share shipment details & needs, and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.

5-Year Limited Warranty

DOCUMENTS

CLIFF Installation & Operation Manual

CLIFF Warranty

UKU Installation & Operation Manual

UKU Install Diagram - Classic
UKU Install Diagram - Glass

UKU Installation Video

UKU Controller Warranty

Stone Placement Video

Description

HUUM CLIFF Mini 4.5kW Sauna Heater Package

The HUUM CLIFF Mini 4STU sauna heater package includes the 4.5kW CLIFF heater, UKU control (Wi-Fi optional), and sauna stones — engineered for sauna rooms from 106 to 177 cubic feet.

Features

KEY FEATURES

CLIFF Mini 4.5kW Sauna Heater

Slender wall-mounted design for small saunas
240V/1PH operation
For sauna rooms from 106 to 177 cu. ft.
Works with UKU controls
132 lb stone capacity
Direct contact between stones and heating elements
More exposed stones create a longer and milder heat
Removable rib(s) for more accurate stacking of stones
Stainless steel construction
Stainless steel, industrial quality heating elements
Wall-mount model
Heats up to 25% faster due to internal air duct
Small safety distances
Designed, engineered, and made in Estonia
Dimensions: 10.6"W (270mm) x 6.3"D (160mm) x 38.4"H (975mm)
Limited 3-year residential warranty and 1-year commercial warranty (excluding elements)
Slender design for small saunas with limited space

UKU Control

Sleek black control display panel
Multiple color options available (additional charges apply)
Settable on/off, time, temperature, and delay
Settable temperature range of 104-230°F
Delayed start up to 48hrs in advance
Optional built-in Wi-Fi interface for HUUM mobile app (additional charges apply)
8 language options: English, German, Russian, Italian, Finnish, Estonian, Polish and French
Inside/outside sauna room installation
Optional smart heating setting
Available decorative control display panels
Displays set temperature and room temperature
Temperature sensor
Door sensor to keep the heat inside the room
Remotely located main control module
Connects to lights and ventilation
Overheat protection
Child safety lock
Control Console Dimensions: 2.2"W (55mm) x 0.9"D (22mm) x 4.1"H (105mm)
Main Control Module Dimensions: 3.5"W (90mm) x 2.3"D (58mm) x 5.6"H (142mm)
Limited 3-year residential warranty and 1-year commercial warranty

Stones 12

Olivine diabase sauna stones
Rounded shape to complement heater design
Durable with high-heat capacity
Stones range from 1" to 2" (3-5 cm)

What's Included?

WHAT'S INCLUDED?

CLIFF Mini 4.5kW Sauna Heater

4.5kW 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)

UKU Control

Black Control Console
Main Control Module
Temperature Sensor
Door Sensor
Control Display Panel Cable
Temperature Sensor Cable
Door Sensor Cable
Installation and Operation Manual
3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty

Stones 12

132 lbs of 1" to 2" (3-5 cm) Round Sauna Stones

Size & Weight

SIZE & WEIGHT

Shipping Weight with Sauna Stones: 165 lbs

Width: 10.6"
Depth: 6.3"
Height: 38.4"

Electrical Specs

ELECTRICAL SPECS

OVERVIEW

Electrical Spec Guide

240V, Single Phase Amperage
14.58 Amps

Kilowatt Rating: 4kW
Minimum Cubic Feet: 106 CF
Maximum Cubic Feet: 177 CF
Circuit Breaker Amperage: 20 Amps
Wire Size: 12 AWG

Shipping & Delivery

SHIPPING & DELIVERY

READY TO SHIP!

CURBSIDE DELIVERY

The price you see is the price you pay. Shipping and standard curbside delivery is included in all US domestic lower 48 states.

DELIVERY DETAILS

Warranty

5-Year Limited Warranty

Documents

DOCUMENTS

CLIFF Installation & Operation Manual

CLIFF Warranty

UKU Installation & Operation Manual

UKU Install Diagram - Classic
UKU Install Diagram - Glass

UKU Installation Video

UKU Controller Warranty

Stone Placement Video

Design

DIMENSIONS

Width: 10.6"
Depth: 6.3"
Height: 38.4"

MATERIALS

Industrial-grade stainless steel construction with a high stone mass for longer, milder heat.

Brand Highlight

DELIVERY & INSTALL

Delivery

Assembly

Install

DELIVERY

Availability

Most of our products are in stock and ready to ship right away. Unless a product is specifically labeled as custom, you can expect your order to be fulfilled without delay.

Processing

Order processing fluctuates depending on seasonality. Pleaser refer to the "Estimated Delivery Date" above or contact us for the most up to date processing and delivery timelines.

Shipping

This item ships LTL freight on a wood pallet or crate. Standard curbside delivery is scheduled during a time that works best for you. White-glove delivery includes debris removal and product placement, and is available for an additional fee based on location and weight of order. Please contact us for a White-Glove Delivery quote or to learn more about delivery options.

ASSEMBLY

HUUM heaters are meticulously designed and require very little assembly to get up and running. Installation should be completed by a licensed electrician. HUUM heaters require a stones to operate.

INSTALL

Electrical install should be completed by a licensed electrician. Please refer to the electrical specs above for specifics on what is required for your sauna.

**WiFi control models require a separate electrical enclosure to be mounted and installed on the backside of the sauna and typically add $1k-$4k to electrical install costs depending on location, distance from your electrical panel, and a few other factors. Please reach out to us directly if you'd like some more information about the differences between a local sauna control install vs. WiFi install.

Full Installation Guide

Feel free to leverage the CPG network of recommended electricians that are veterans at sauna install. If you choose to use your own electrician, we can schedule a pre-install call to make sure they have everything they need to succeed.

Delivery

DELIVERY

Availability

Most of our products are in stock and ready to ship right away. Unless a product is specifically labeled as custom, you can expect your order to be fulfilled without delay.

Processing

Order processing fluctuates depending on seasonality. Pleaser refer to the "Estimated Delivery Date" above or contact us for the most up to date processing and delivery timelines.

Shipping

Assembly

ASSEMBLY

HUUM heaters are meticulously designed and require very little assembly to get up and running. Installation should be completed by a licensed electrician. HUUM heaters require a stones to operate.

Install

INSTALL

Electrical install should be completed by a licensed electrician. Please refer to the electrical specs above for specifics on what is required for your sauna.

Full Installation Guide

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DETOXIFICATION

detoxification

Sweat is the safest and most natural way to expel the body's toxins. Practiced for thousands of years, sauna is still one of the most efficient ways to sweat on earth today.

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MUSCLE RECOVERY

Extensive research has shown that exposure to cold and heat can effectively reduce inflammation, accelerating the recovery process and providing relief from pain.

LEARN MORE

MENTAL HEALTH

Through breathing techniques you can learn to calm your nervous system in intense heat and cold. Breathing is the key to a racing heart and a racing mind.

LEARN MORE

IMPROVED SLEEP

Whoop™ posted a study that showed a 2.5x increase in sleep consistency on days when people practice cold exposure. Learn how heat & cold to create better habits and deeper sleep.

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HEART HEALTH