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Huum STEEL Series Sauna Heater

Questions? Call us at 307-228-7754


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 5 cm with smaller models and to 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.

  • small safety distances
  • the internal air duct in the center speeds up heating by 25%
  • high stone capacity
  • stainless steel
  • 5-year guarantee


  • 6 kW - sauna room size 212-353 ft3 / 6–10 m3
  • 9 kW - sauna room size 318-530 ft3 / 9-15 m3
  • 10.5 kW - sauna room size 353-600 ft3 / 10-17 m3


  • electric sauna heater


  • control unit
  • stones (3-5 cm)
  • heat-resistant power cable



Model STEEL 6.0
Kilowatt Rating 6.0 KW
Minimum Cubic Feet 212 CF
Maximum Cubic Feet 353 CF
Heater Weight 33 lbs
Shipping Weight with Sauna Stones 364 lbs
240V, Single Phase Amperage --
Width 12.6" W (320mm)
Depth 12.6" W (320mm)
Height 38.4" H (975mm)

Model STEEL 9.0
Kilowatt Rating 9.0 KW
Minimum Cubic Feet 318 CF
Maximum Cubic Feet 529 CF
Heater Weight 33 lbs
Shipping Weight with Sauna Stones 364 lbs
240V, Single Phase Amperage --
Width 12.6" (320mm)
Depth 12.6" (320mm)
Height 38.4" (975mm)

Model STEEL 10.5
Kilowatt Rating 10.5 KW
Minimum Cubic Feet 353 CF
Maximum Cubic Feet 600 CF
Heater Weight 35 lbs
Shipping Weight with Sauna Stones 366 lbs
240V, Single Phase Amperage --
Width 12.6" (320mm)
Depth 12.6" (320mm)
Height 38.4" (975mm)



STEEL Installation and Operation Manual

HUUM Stone Requirements

HUUM Elements Required

HUUM Heater Warranty 2021

HUUM Certificate of Compliance

Shipping & Returns

Shipping & Returns

Frequently Asked Questions

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. If for some reason, there is a delay in stock, we will contact you before accepting payment.

When will my order ship?

If your order is in stock and we process the charges to your credit card, it will ship within 2-5 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" data-mce-href="mailto:">

No Shipping outside the lower 48 in the USA.

If you have questions regarding anything below, please send an email to sales@thefullfacility.comor call us at 1-307-228-7754


Take a look at our Easy Return And Refund Policy: Return And Refund Policy

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