HUUM Sauna Heater UKU Local Black HUUM STEEL Mini Series 3.5kW Sauna Heater Package
HUUM Sauna Heater HUUM STEEL Mini Series 3.5kW Sauna Heater Package
HUUM Sauna Heater HUUM STEEL Mini Series 3.5kW Sauna Heater Package
HUUM Sauna Heater HUUM STEEL Mini Series 3.5kW Sauna Heater Package
HUUM Sauna Heater HUUM STEEL Mini Series 3.5kW Sauna Heater Package
HUUM Sauna Heater HUUM STEEL Mini Series 3.5kW Sauna Heater Package
HUUM Sauna Heater HUUM STEEL Mini Series 3.5kW Sauna Heater Package
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HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater
HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater
HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater
HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater
HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater
HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater
HUUM Sauna Heater HUUM STEEL Mini 3.5 kW 240V Electric Sauna Heater

HUUM STEEL Mini Series 3.5kW Sauna Heater Package

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Authorized Dealer - Full Warranty Included

ONE TIME INVESTMENT

Sale price$2,958.00
+ Free Shipping
OR
Model: STEEL Mini 3.5STU Pkg
Ideal for small saunas with limited space
For sauna rooms from 106 to 177 cu.ft.
133 lb stone capacity for long, gentle heat
Reaches up to 230 °F
Fast 20–30 min heat-up time
Stainless steel body & industrial-grade elements
Designed & handcrafted in Estonia
Heater Control Package:

Heater Control Package

When in stock, ships free via LTL or FedEx from Chicago within 3-6 business days. Estimated Arrival between July 08 and July 15 .
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How does delivery work?

HUUM sauna heaters ship free to your doorstep via FedEx or UPS. Once dispatched, you’ll receive a tracking number to follow your order. All shipments are fully insured and carefully packaged at our Chicago facility to ensure safe delivery.

What are the electrical requirements?

Voltage: 240V single-phase connection

Alternate wiring: 208V connection reduces power output by ~25%

Circuit breaker: 20 amps

Wire size: 12 AWG

What is the warranty?

HUUM sauna heaters come with a 3-year limited warranty for residential use and a 1-year limited warranty for commercial installations. Heating elements are excluded from warranty coverage.

Description

This package for the HUUM Steel Mini 3.5kW sauna heater includes the UKU control (with optional WiFi), sauna stones, and everything else necessary for creating your ideal sauna experience. It is designed for saunas up to 177 cubic feet (CF).

Features

STEEL Mini 3.5kW Sauna Heater

  • Slender design
  • Suitable for use in small saunas with limited space
  • Small safety distances
  • Heats up to 25% faster due to internal air duct
  • For sauna rooms from 106 to 177 cu. ft.
  • Works with UKU controls
  • 133 pound stone capacity (required 4 boxes)
  • Direct contact between stones and heating elements
  • More exposed stones creates a longer and milder heat
  • Stainless steel construction
  • Stainless steel, industrial quality heating elements
  • Wall-mount model
  • Designed, engineered, and made in Estonia
  • Dimensions: 12.6" W (320mm) x 6" D (150mm) x 38.4" H (975mm)
  • Limited 5-year warranty (excluding elements)
  • Fast heat up times: ~20-30 minutes

UKU 

  • Sleek Black control display panel
  • Multiple Color Options available
  • Settable on/off, time, temperature, and delay
  • Settable temperature range of 104-230F
  • Delayed start up to 48hrs in advance
  • Optional Built-in Wi-Fi interface for HUUM mobile app
  • 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)

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)

Specifications

STEEL Mini 3.5
Kilowatt Rating 3.5 KW
Minimum Cubic Feet 106 CF
Maximum Cubic Feet 177 CF
Heater Weight 32 lbs
Shipping Weight with Sauna Stones 165 lbs
240V, Single Phase Amperage --
Width 12.6" W (320mm)
Depth 6" D (150mm)
Height 38.4" H (975mm)
UKU
Minimum Temperature Setting 104 F
Maximum Temperature Setting 230 F
Shipping Weight 20 lbs
Console Dimensions
Width 2.2" (55mm)
Depth 0.9" (22mm)
Height 4.1" (105mm)
Main Module Dimensions
Width 3.5" (90mm)
Depth 2.3" (58mm)
Height 5.6" (142mm)
Display Panel Cable
Length 9.8 ft
AWG 22
Temp Sensor Cable
Length 16.4 ft
AWG 24
Door Sensor Cable
Length 16.4 ft
AWG 24

 

Minimum Safety Clearances:

A: 1.9" (50mm)

B: 16.5" (420mm)

Manuals 

Installation & Operation Manual

Spec diagram

Stone requirements

Elements required

Warranty

Size your sauna

Certificate of Compliance

Features

STEEL Mini 3.5kW Sauna Heater

  • Slender design
  • Suitable for use in small saunas with limited space
  • Small safety distances
  • Heats up to 25% faster due to internal air duct
  • Works with UKU controls (sold separately)
  • 133 pound stone capacity (required 4 boxes sold separately)
  • Direct contact between stones and heating elements
  • More exposed stones creates a longer and milder heat
  • Stainless steel construction
  • Stainless steel, industrial quality heating elements​
  • Wall-mount model
  • Designed, engineered, and made in Estonia
  • Dimensions: 12.6" W (320mm) x 6" D (150mm) x 38.4" H (975mm)
  • Limited 3-year residential warranty and limited 1-year commercial warranty (excluding elements)

UKU 

  • Sleek Black control display panel
  • Multiple Color Options available (additional charges apply)
  • Settable on/off, time, temperature, and delay
  • Settable temperature range of 104-230F
  • 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 limited 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)
Includes

STEEL Mini 3.5kW Sauna Heater

  • 3.5kW Sauna Heater
  • Wall Fastening Bracket 
  • Installation and Operation Manual
  • 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

UKU

  • 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
Specifications
  • Model: STEEL Mini 3.5STU PKG
  • Heater Model: STEEL Mini 3.5

Heater Specifications:

  • Kilowatt Rating: 3.5 kW
  • Minimum Cubic Feet: 106
  • Maximum Cubic Feet: 177
  • Heater Weight: 32 lbs
  • Shipping Weight (with Sauna Stones): 165 lbs
  • Voltage / Phase: 240V, Single-Phase
  • Amperage: 14.58 A
  • Width: 12.6"W (320 mm)
  • Depth: 6"D (150 mm)
  • Height: 38.4"H (975 mm)

UKU Control Specifications:

  • Minimum Temperature Setting: 104°F
  • Maximum Temperature Setting: 230°F
  • Shipping Weight: 20 lbs

Console Dimensions:

  • Width: 2.2" (55 mm)
  • Depth: 0.9" (22 mm)
  • Height: 4.1" (105 mm)

Main Module Dimensions:

  • Width: 3.5" (90 mm)
  • Depth: 2.3" (58 mm)
  • Height: 5.6" (142 mm)

Display Panel Cable:

  • Length: 9.8 ft
  • AWG: 22

Temperature Sensor Cable:

  • Length: 16.4 ft
  • AWG: 24

Door Sensor Cable:

  • Length: 16.4 ft
  • AWG: 24
Manuals
Shipping

HUUM sauna heaters are shipped directly to your doorstep using FedEx or UPS. Once your order has been dispatched, a tracking number will be provided to keep you updated on its journey. Rest assured, all shipments are fully insured for your protection. Our HUUM products are carefully packaged and shipped from our Chicago facility to ensure they arrive in perfect condition.Express shipping options are available upon request. Contact us for a personalized quote.

HUUM Sauna Heater UKU Local Black HUUM STEEL Mini Series 3.5kW Sauna Heater Package

HUUM STEEL Mini Series 3.5kW Sauna Heater Package

$2,958.00

Designed for Comfort and Wellness

What sets HUUM apart is its dedication to providing a sauna experience that enhances both physical and mental wellness. The heater’s design maximizes the release of beneficial negative ions, promoting relaxation and a sense of calm. With its superior ability to regulate heat and humidity levels, this sauna heater allows you to enjoy soothing, rejuvenating steam that wraps your body in warmth without feeling too harsh or overwhelming. Additionally, HUUM's simple, smart control system offers both local and WiFi-enabled options, giving you the flexibility to adjust settings and schedule sessions remotely, ensuring a perfectly tailored sauna experience at your convenience.

HUUM STEEL: Compact Design, Powerful Performance

The STEEL electric sauna heater has been specifically designed for modern home saunas with limited space. Its compact size and powerful performance make it a stylish addition to any interior. The heater is compatible with the UKU sauna control system, allowing you to adjust the sauna temperature remotely. Featuring an optimized structure, the heater offers minimal safety distances and an internal air tunnel that improves airflow and speeds up heating by 25%. The large stone capacity of up to 330 lbs ensures prolonged, mild steam, while the wall-mounted STEEL Mini accommodates up to 132 lbs of stones.

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