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EOS Mythos S45 Electric Sauna Heater (12kW / 15kW)

$10,441.00$11,999.00

(POWER BOX - NOT INCLUDED IN PACKAGE) The EOS Mythos S45 Electric Sauna Heater (12kW / 15kW) is an award-winning, German-engineered floor-standing heater designed for premium Finnish dry saunas in both...

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Vendor: EOS

(POWER BOX - NOT INCLUDED IN PACKAGE)

The EOS Mythos S45 Electric Sauna Heater (12kW / 15kW) is an award-winning, German-engineered floor-standing heater designed for premium Finnish dry saunas in both private and commercial settings. With its distinctive cubistic form and pillar-style base, the Mythos S45 delivers powerful heat performance while making a bold architectural statement—especially in glass-front sauna designs.

Crafted with a stainless-steel inner construction and a large ~45 kg (99 lb) rock store positioned above the heating elements for easy service access, the S45 provides excellent heat storage and effective water evaporation. Its slim 37 cm (1.2 ft) depth keeps the footprint clean and space-efficient. 

Architectural design. German precision. Authentic Finnish heat.


Features:

  • Premium German Engineering: Designed and manufactured in Germany for long-term reliability.
  • Award-Winning Cubistic Design: Uniform 4-sided appearance—ideal for installation in front of glass panels. 
  • Multiple Finish Options: Available in anthracite, brushed steel, matt black, or white (depending on configuration/availability).
  • Large Rock Store (~45 kg / 99 lbs): Optimal heat storage and effective water evaporation.
  • Slim Depth: Only 37 cm (1.2 ft) for a space-saving footprint. 
  • Easy to Service: Rock store positioned above heating elements for easier access. 
  • Durable Construction: Stainless steel inner construction and long-lasting build quality. 
  • IPX4 Rated: Suitable for sauna environments (damp location rating). 
  • Control Unit Required: Must be operated with an EOS control unit (sold separately).

 


EOS Mythos S45 Specifications:

12.0 kW Version

  • Power Output: 12.0 kW
  • Power Supply: 208V 3PH AC 60 Hz
  • Recommended Cabin Size: 7.4 – 9.5 sq. m x 1.90 m (79.7 – 102.3 sq ft x 6.2 ft)
  • Minimum Air Inlet/Outlet: 35 x 7 cm (1.2 x 0.3 ft)
  • Fuse Protection: 30 A
  • Connecting Cable: 12 AWG copper wire (minimum)
  • Stone Filling: 45 kg (99 lbs)
  • Weight (without stones): 39.5 kg (87 lbs)
  • Dimensions (H x W x D): 84 x 50 x 37 cm (2.8 x 1.6 x 1.2 ft)
  • Installation Type: Floor-standing

 

15.0 kW Version

  • Power Output: 15.0 kW
  • Power Supply: 208V 3PH AC 60 Hz
  • Recommended Cabin Size: 9.5 – 13.2 sq. m x 1.90 m (102.3 – 142 sq ft x 6.2 ft)
  • Minimum Air Inlet/Outlet: 35 x 9 cm (1.2 x 0.4 ft)
  • Fuse Protection: 35 A
  • Connecting Cable: 12 AWG copper wire (minimum)
  • Stone Filling: 45 kg (99 lbs)
  • Weight (without stones): 39.5 kg (87 lbs)
  • Dimensions (H x W x D): 84 x 50 x 37 cm (2.8 x 1.6 x 1.2 ft)
  • Installation Type: Floor-standing

 


Minimum Clearances:

  • Side Clearance to Walls / Benches: 4 cm (0.13 ft)
  • Rear Clearance: 4 cm (0.13 ft)
  • Front Clearance: 4 cm (0.13 ft)
  • Minimum Distance to Ceiling: 900 mm (35.4 in)
  • Minimum Inner Sauna Height: 190 cm (6.23 ft)

 


Installation & Safety Notes:

  • For indoor installation only – not suitable for outdoor use. 
  • Must be installed by a licensed electrician; fixed mains connection required. 
  • For supply connections, use copper wiring suitable for at least 90°C. 
  • Heater must be operated with an approved EOS control unit (power box sold separately). 
  • A temperature sensor with safety temperature limiter must be installed above the heater (not included). 
  • Stones must be stacked loosely to allow proper airflow; never operate without stones. 
  • Ventilation is required: air inlets/outlets must not be closed; air inlet typically 5–10 cm (2–3.9 in) above the floor below/behind the heater. 
  • Heater guard rail is essential to reduce burn risk (sold separately). 



Package Contents:

  • EOS Mythos S45 Electric Sauna Heater (12.0kW or 15.0kW)
  • Cubius stones (decorative cubic stones)
  • Installation & Operating Manual

 


Made in Germany

The EOS Mythos S45 is manufactured in Germany and engineered for long-term durability, consistent performance, and architectural integration. EOS is recognized globally for precision sauna engineering and uncompromising build quality. 


Authentic Finnish Sauna Experience

The Mythos S45 uses a large stone mass to store heat and create strong, even steam. Pour water slowly and evenly over the stones (or over the Cubius stones) for a smooth infusion—steam distributes evenly through the cabin as hot air rises. 

 


Note: Control unit / power box is sold separately and required for operation. EOS lists compatible control units such as EOS EmoTec D and EOS Touch 3 in 208V 3N AC 60 Hz configurations (depending on setup). 

Our Scandinavian outdoor saunas, shipped from our Canadian warehouse, are delivered right to your curb. We'll call you when your sauna is ready to ship and then email you the tracking details. The transport company will then contact you to schedule delivery once it reaches their local terminal.

Included with the delivery:

Sauna Crate

You'll receive a crate with the sauna materials. The delivery driver may assist in lowering the crate, but you'll need tools to open it and at least two people to unload the components. This typically takes about 30 - 45 minutes.

Glass Window (if applicable): 

If you've ordered a special glass back, it'll arrive on a separate pallet. We try to synchronize the delivery of both items, but they may come separately. Check and note any missing items on delivery paperwork.

Sauna heater, rocks and controls:

When shipped with your sauna, they will arrive on a separate pallet. If they’re shipped directly from the manufacturer, we'll provide tracking information and coordinate the delivery timing of the heater with your sauna.

Accessories:

Basic sauna accessories will arrive with your sauna. Other items like LED lights or salt panels are shipped separately and may arrive without needing a signature.

Delivery Paperwork:

Before signing, ensure all items listed are received and take photos of the crate/pallets. This helps us assist you if there are missing or damaged items.

* If you're located in a remote area or a place where standard delivery trucks might have difficulty accessing, please inform us. We'll work out a specialized delivery plan for you, though this may require additional shipping charges. *

Please watch this video below for an example of our curbside delivery procedure:

How To Receive Delivery & Unload Our Scandinavian Barrel Sauna (7x8)

We're committed to keeping our prices and inventory levels accurate for you. But hey, we're only human, and occasionally something might slip through the cracks. If you have any questions or spot something amiss, our Sales and Customer Service teams are just a message away. Don't hesitate to contact us for any clarifications or assistance!

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