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Spring Sale on Now | $100 with code SPRING100 | Free Shipping Over $1,000
Spring Sale on Now | $100 discount with code SPRING100 | Free Shipping Over $1,000

HUUM STEEL 6 | 6kW Sauna Heater

5 Year Warranty | European Manufactured
Original price $1,586.00 - Original price $1,586.00
Original price
Current price $1,586.00
Only 2 left!

Delivery time between 1-2 weeks

30 Day money back guaranty

No Sales tax* Excludes Wyoming

Free Shipping

On orders over $1,000

Free Returns

Within 30 days*

Zero Sales Tax

Excluding Wyoming*

STEEL Series 6.0kW Sauna Heater

STEEL electric sauna heater is a classy and powerful pick for a modern home sauna. With a sleek design and small safety distances, this heater is perfect for compact steam rooms. But don’t be mislead by its slender shape – the built-in air tunnel ensures effective airflow and quick heating. Plus, the heater holds a large amount of sauna stones for gentle and long-lasting steam. And let’s not forget about its eye-catching stainless steel enclosure, which creates a stunning contrast with the natural sauna stones.

The HUUM STEEL 6.0kW sauna heater is an electric sauna heater with a large rock capacity, yet remarkably small safety distances, making it ideal for saunas with limited spaces. The STEEL 6.0kW sauna heater is designed for sauna spaces up to 353 cubic feet (CF). 

STEEL is a slim electric sauna heater with remarkably small safety distances, which makes it perfect for saunas with limited spaces. Thanks to its well-optimized structure the safety distances from the walls are brought down to just 2" (5 cm) with smaller models and to 4" (10 cm) with larger models. STEEL heater also comes in an even slimmer 3.5 kW wall-mounted model which is particularly suitable for very small sauna rooms.

Key Features & Specifications

  • Slim free-stranding design
  • Small safety distances
  • Heats up to 25% faster due to internal air duct
  • Large stone capacity 331lb / 150 kg (10 boxes sold separately)
  • Stainless steel construction
  • Limited 5-year warranty (excluding elements)
  • Dimensions 12.6" w × 12.6" d × 38.4" h
 Note: This heater requires a sauna stones and controls to be operated. Sold separately

Unsure which Steel model is best for you? Check out our comparison chart below

Attribute Steel 6 Steel 9 Steel 11
Power Rating 6 kW 9 kW 10.5 kW
Minimum Sauna space to heat 6 m³ (212 ft³) 9 m³ (318 ft³) 10 m³ (353 ft³)
Maximum Sauna space to heat 10 m³ (353 ft³) 15 m³ (530 ft³) 17 m³ (600 ft³)
Stone Capacity 150 kg (330 lb) 150 kg (330 lb) 150 kg (330 lb)
Weight 15 kg (33 lb) 15 kg (33 lb) 16 kg (35.3 lb)
Height 975 mm (38.4 in) 975 mm (38.4 in) 975 mm (38.4 in)
Width 320 mm (12.6 in) 320 mm (12.6 in) 320 mm (12.6 in)
Depth 320 mm (12.6 in) 320 mm (12.6 in) 320 mm (12.6 in)
Fuse 30 A 50 A 50 A
Supply Voltage 240 V 2~ 240 V 2~ 240 V 2~
Power Cable 10 AWG 8 AWG 6 AWG
Safety Distance A 50 mm (2 in) 100 mm (4 in) 100 mm (4 in)
Safety Distance B 420 mm (16.5 in) 520 mm (20.5 in) 520 mm (20.5 in)


Our primary commitment is to ensure your interaction with us is as easy and uncomplicated as possible. Below is information about our shipping policy.

Shipping Charges

Free Shipping - On all saunas, hot tubs & heaters
Sauna Stones - $99
Dundalk Accessories - $50 
All other accessories - $30 

Additional charges may apply in certain locations and circumstances such as:

  • Delivery sites inaccessible by standard carriers (FedEx, UPS) will be charged an LTL freight fee.
  • Roads that cannot accommodate at least Class 6 Size Vehicles, such as remote or island locales.
  • Crates exceeding 92” in length can't be handled by a standard liftgate. If this happens, you'll need to manually unload the crate (with help), employ a moving service, or use forklift equipment. Note: The driver is not allowed to assist in these situations due to insurance constraints.
  • Any delay in receiving your delivery beyond 48 hours from the initial contact by the freight company might result in a daily storage fee of $100.

Shipment methods and sizes

Most saunas kits are shipped as kits pre-packaged onto a pallet and sent via LTL.

Pre-assembled saunas are shipped via flat-bed truck delivery by special appointment. These product will require off-loading from the flat-bed truck by a crane or extended forklift. This is not provided by the courier so you will be responsible for arranging the offloading and transporting the product to its final location.

Shipping Timeline

Upon placing your order, you'll promptly receive an "Order Acknowledgment" email, indicating we've got your order details. We will then check with our suppliers to ensure your selected item is ready for dispatch. Most of our off-the-shelf saunas and accessories are primed for quick shipping, whereas tailor-made saunas require more time (refer to the Shipping Timeline below).

Country: United States
Shipping Method: FedEx, USPS, and Local Freight Companies.
Handling Time: 1-2 Days (Monday to Friday)
Transit Time: 3-5 Days (Monday - Friday) depending on location
Total Delivery Time: 5-7 business days

After your order is verified and we've processed your payment, we'll prepare it for shipping. On the day of dispatch, a tracking update will be sent to the email you provided during checkout, allowing you to monitor your shipment with ease.

Should you not receive any tracking details within 5 business days from your order date, please don't hesitate to connect with us through chat, our contact page, or directly at

Note: In the event of unforeseen delays, such as extreme weather or supplier issues, one of our customer support specialists will contact you to explain the situation and discuss any changes. 

Where we ship to

We ship to all states within the contiguous United States. excluding Alaska, Hawaii, and and US islands. If you're located in these areas or need shipping specifics, please reach out for a detailed quote. Your order will first be sent to the closest freight terminal near you. Upon its arrival, the freight carrier will contact you to schedule a curb-side delivery at your convenience.

Where we ship from

All orders are shipped directly from the manufactures warehouse in Illinois &. This ensures the fastest possible delivery at the lowest cost for our customers.
We do not offer any Chinese or Asian manufactured saunas and all shipments are from inside the United States.

Receiving Your Order

The shipping company will contact you to schedule your delivery. Upon arrival:

  1. Inspect Upon Arrival: Before signing any paperwork, take care to inspect your delivered items.
  2. Count & Confirm: Make sure all pieces of your order are present.
  3. Hidden Damages: If you find damages not initially evident during delivery, report them immediately to

Handling Shipment Damages

Shipping damages, while uncommon, fall into two categories:

  1. Visible Damage: Damage is evident on the container/crate.
  2. Concealed Damage: Contents are damaged, but the container appears intact.

For visible damages or if items are missing, it's crucial to make precise notes on the delivery receipt. If concealed damages are found after unboxing, report them within 72 hours. Finnish Sauna Builders will replace any damaged or missing components if reported within this window. Claims made after this period cannot be addressed.


If you choose to refuse your order upon delivery for reasons other than evident damages or a shipping mistake, you'll be subject to any related shipping charges.

 When you are ready to purchase your items, click the Proceed to Checkout button. Please log in if you have an account with us, if you do not already have an account you will be prompted to create one, or you can checkout as a guest only.

On your payment screen you will see the total amount of items. Please add your payment method and billing address. accepts a number of payment methods:

  • Apple Pay
  • Diners Club
  • Discover
  • Meta pay
  • Google Pay
  • MasterCard
  • Shop Pay
  • Visa

How do I know my payment transaction is secure?

We ensure that every credit card transaction occurs within a secure environment. The payment system has a 128-bit SSL security encryption. You can see the transaction is secure if you see a key lock at the bottom right of your web browser. We do not retain your credit card information after your order is complete. Rather, it is submitted directly to our banks. You can rest assured that with each purchase your credit card or bank account information will be secure. is committed to a safe, enjoyable and smooth online shopping experience for all customers. For your safety, has implemented a payment security screening process. Confirmation of customer details on certain orders may be required prior to the order being processed. Please ensure that you provide accurate and up to date contact information should we need to confirm the security of your order.

For further inquiries: 

  • Website:
  • Phone number: (844) 933 2021
  • Email:
  • Physical address: 30 N Gould St, Ste R Sheridan Wyoming 82801 United States