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SKU: 66744203503

HUUM STEEL Mini Series 3.5kW Sauna Heater Package

Sale price$1331.10 Regular price$1479.00
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Pay in installments of $369.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HUUM STEEL Mini Series 3.5kW Sauna Heater PackageHUUM STEEL Mini Series 3. 5kW Sauna Heater Package This HUUM Steel Mini sauna heater package comes complete with the traditionally designed STEEL Mini 3. 5kW sauna heater, UKU control (WiFi optional), and sauna stones everything you need to build your dream sauna experience. The package has been combined for use in sauna rooms up to 177 cubic feet (CF). Includes STEEL Mini 3. 5kW Sauna Heater 3. 5kW sauna heater Wall fastening bracket Installation and

HUUM STEEL Mini Series 3.5kW Sauna Heater Package


This HUUM Steel Mini sauna heater package comes complete with the traditionally designed STEEL Mini 3.5kW sauna heater, UKU control (WiFi optional), and sauna stones - everything you need to build your dream sauna experience. The package has been combined for use in sauna rooms up to 177 cubic feet (CF).

 

Includes

STEEL Mini 3.5kW Sauna Heater

  • 3.5kW sauna heater
  • Wall fastening bracket
  • Installation and operation manual
  • 3-Year limited 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 warranty


Stones 12


  • 132 lbs of 1" to 2" (3-5 cm) round Olivine sauna stones


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 (sold separately)
  • 133-pound stone capacity (required 4 boxes sold separately)
  • 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
  • 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 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 48 hours 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)


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)

 

Specification

STEEL Mini Series Sauna Heater

Model STEEL Mini 3.5STU Pkg
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

 

For HUUM Sauna Heater or accessories damaged in shipping, please contact our customer service team with photos and information at [email protected]. A team member will review and offer a credit or replacement based on the extent of the damage.

 

Shipping & Returns

Cancellations & Refunds

SaunaKits.com prides itself on having one of the best return policies in the industry.  Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom made orders).

Call 1-877-587-5387 or email [email protected]

When will I know my order has shipped?

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

When will my order ship?

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at [email protected].  

No shipping outside the lower 48 States in the USA.

What if my shipment is damaged?

Please inspect the packaging of your item(s) when they arrive. If you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrive damaged please send photos to [email protected] and we will process an insurance claim on your behalf.

Cancellations (Before order ships)

SaunaKits.com prides itself on having one of the best return policies in the industry.  Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom made orders). Reach agents during business hours at 1-877-587-5387, the chat on our website, or email [email protected]

Cancellations of customer orders

Custom or made to order products cannot be canceled or refunded as these products are put into production specifically for your order.  These units are custom made to your specification or created once you order. Once you place your order they start building your unit. Your warranty will guarantee you a fully functional and operational product. If it is not clear whether your order is custom or made to order, please message or call us. 

All sales are final for Custom made and Made-to-order products.

Refunds & Returns

If you need to exchange your product, you may do so.  You, as the customer, are responsible for any shipping costs throughout any returns or exchange processes. 

Not all orders are available for return once they have shipped.  We order products directly from the manufacturer. Therefore, if the manufacturer will not permit us to return a product, we cannot offer you a return. This often varies on a case-by-case basis; please reach out to us if you would like specific information on your brand and/or product. 

Due to drastically increasing LTL/freight shipping costs, any outright returns will incur a 25% cancellation fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product.

Seller reserves the right to refuse to refund any deposit or payment, or cancel any payment due, and any owing until such time as Seller a) is in receipt of the goods b) has inspected the goods and c) in the Sellers discretion, has found the goods to be free of damage. All refunds will be provided within 5 business days once the product has been returned to the warehouse and inspected for damage.

Shipping Times

We promise to do our best to get your order to you as soon as possible.  We provide estimated shipping times on the product pages based upon what our suppliers and freight companies tell us, and those estimated shipping times may change or vary without notice (Due to supply chain issues, the steel mills behind on making metal, the manufacturers delayed because of the mills, the overwhelming demand on shipping, factory/warehouse and dock workers and so on). 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 66744203503

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E. K. E.
Phoenix, US
★★★★★ 5
It is worth purchasing a Protection Plan on an unfamiliar item
Bought a 3-year protection plan for a nut milk maker machine for $5.99. It was a fairly new kitchen item in our household and we were not familiar with the brand. So, I bought the plan for a piece (peace) of mind. The machine worked nicely for about 18-20 months with daily use until it tripped the circuit outlet. My initial chat with Asurion did not go as I expected due to discrepancy on their end as they see a protection plan for the nut milk maker as a sporting goods valued between $100-$199, not as a kitchen item valued between $30-$39.99. ( I had bought 3 different protection plan on th same day for multiple items purchased on Prime Days). They were looking at a different plan and I was unable to get them to "scroll over" to the appropriate protection plan. I tried again on a different day during the first hour of their contact hours and had a cheerful Asurion agent who was able to find the appropriate kitchen item protection plan. It was a simple and thorough conversation and transaction. I was refunded within hours after I packed up and dropped off the damaged item out to UPS. Moral of the story: Asurion Protection Plan is worth it and contact them at the start of their first day shift, not at the end of their evening shift.
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Reviewed in the United States on May 24, 2026
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Brian
Houston, US
★★★★★ 5
Warranty Plan
Hop I won’t have to use the warranty but it was reasonably priced.
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Reviewed in the United States on April 21, 2026
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swm
Whiting, US
★★★★★ 4
You have to print return label!
4 of 5 because you have to print a return label and for those of us who don't need a printer therefor don't have one its too much trouble
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Reviewed in the United States on May 8, 2026
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barneysdoghouse
Grantham, US
★★★★★ 5
No hassle refund
So glad I bought the plan. After 2.5 years of everyday use of my toaster, it quit working. Contacted Asurion, they emailed a shipping label. A few hours after I dropped the package off at UPS, I had the refund in my Amazon account. Very easy, no hassles.
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Reviewed in the United States on March 27, 2026
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Sam
Omaha, US
★★★★★ 1
Very bad
This guys are just an eye wash, they do not cover anything but will charge you. I bought Hand Blender and it broke in couple of months and I took 3 year protection from Asurion. When I contacted them about the issue, they said it is not started, go to manufacturer. I reached out to Amazon and they replaced it for me. Now again it broke. I reached out to asurion again. Now they say it is not contract. what is the point of having protection. Waste of time and money. I will not recommend this to anyone. This is a fraud protection.
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Reviewed in the United States on June 8, 2026

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