(POWER BOX - NOT INCLUDED IN PACKAGE)
The EOS Mythos S35 Electric Sauna Heater (7.5kW / 9kW) is an award-winning, German-engineered floor-standing heater designed for premium Finnish dry saunas. Featuring a distinctive cubistic design with a unique pillar-style base, the Mythos S35 delivers exceptional heat performance while elevating the visual presence of any sauna space.
Built entirely from stainless steel with an integrated 35 kg (77 lb) rock store positioned above the heating elements, this heater ensures powerful heat storage and efficient water evaporation. Its slim 37 cm (1.2 ft) depth makes it ideal for modern installations, including glass-front sauna designs.
Architectural design. German precision. Authentic Finnish heat.

Features:
- Premium German Engineering: Designed and manufactured in Germany for long-term reliability.
- Distinctive Cubistic Design: Unique pillar-style base with uniform 4-sided appearance – ideal for glass installations.
- Integrated Cubius Stones: Decorative Cubius stone kit included in standard supply.
- 35 kg (77 lb) Rock Capacity: Large rock store positioned above heating elements for optimal heat retention and steam production.
- Slim Construction: Only 37 cm (1.2 ft) depth – space-saving footprint.
- Durable Stainless Steel Construction: Inner and outer shell fully stainless steel.
- IPX4 Rated: Suitable for sauna environments.
- Floor-Standing Installation: Stable base with optional mounting brackets for safety guard rail.
- For Private & Commercial Use: Designed for residential and light commercial sauna cabins.
- Compatible Control Units: Works with EOS EmoTec D/H or EOS Touch 3 (sold separately).
EOS Mythos S35 Specifications:
7.5 kW Version
- Power Output: 7.5 kW
- Voltage: 240V 2PH AC 60 Hz / 208V 3PH AC 60 Hz
- Recommended Cabin Size: 4.2 – 6.3 m³ (45.2 – 67.8 sq ft x 6.2 ft height)
- Minimum Air Inlet/Outlet: 35 x 5 cm (1.2 x 0.2 ft)
- Fuse Protection (208V / 240V): 50A / 40A
- Connection Line (208V / 240V): 12 AWG / 10 AWG copper wire
- Stone Capacity: 35 kg (77 lbs)
- Weight (without stones): 33.5 kg (74 lbs)
- Dimensions (H x W x D): 84 x 42 x 37 cm (2.8 x 1.4 x 1.2 ft)
- Installation Type: Floor-standing
9.0 kW Version
- Power Output: 9.0 kW
- Voltage: 240V 2PH AC 60 Hz / 208V 3PH AC 60 Hz
- Recommended Cabin Size: 4.7 – 7.4 m³ (50.5 – 79.7 sq ft x 6.2 ft height)
- Minimum Air Inlet/Outlet: 35 x 6 cm (1.2 x 0.2 ft)
- Fuse Protection (208V / 240V): 35A / 50A
- Connection Line (208V / 240V): 10 AWG / 8 AWG copper wire
- Stone Capacity: 35 kg (77 lbs)
- Weight (without stones): 33.5 kg (74 lbs)
- Dimensions (H x W x D): 84 x 42 x 37 cm (2.8 x 1.4 x 1.2 ft)
- Installation Type: Floor-standing
Minimum Clearances:
- Side Clearance to Walls: 4 cm (0.13 ft)
- Rear Clearance: 4 cm (0.13 ft)
- Front Clearance: 4 cm (0.13 ft)
- 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.
- Use copper wiring rated for minimum 90°C.
- Heater must be operated with an approved EOS control unit.
- Stones must be loosely stacked to allow proper airflow.
- Never operate heater without stones.
- Safety temperature limiter must be connected according to installation manual.
- Heater guard rail recommended to reduce burn risk.
Package Contents:
- EOS Mythos S35 Electric Sauna Heater (7.5kW / 9kW)
- Cubius Stone Kit with Frame
- 35 kg (77 lbs) Sauna Stones
- Installation & Operating Manual
Made in Germany
The EOS Mythos S35 is manufactured in Germany using premium stainless steel components 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 S35 uses a large rock mass positioned above the heating elements to maximize stored heat and create powerful, evenly distributed steam. When water is gently poured over the stones, heat radiates naturally throughout the cabin, delivering the traditional Finnish sauna experience.
Note: Control unit is sold separately. We recommend pairing the EOS Mythos S35 with an EOS EmoTec D/H or EOS Touch 3 control unit to ensure proper operation and heating period limitation.

