EOS Mythos S35 7.5kW Electric Sauna Heater
Elevate your sauna experience with the EOS Mythos S35 7.5kW Sauna Heater, a premium floor-standing heater crafted for medium-sized sauna rooms up to 420 cubic feet. Designed and handbuilt in Germany, this heater combines advanced heating performance, long-lasting durability, and a sleek modern aesthetic available in bold black or crisp white finishes. Its durable powder-coated exterior delivers a refined, contemporary spa-inspired appearance while offering excellent resistance to heat, wear, and corrosion.
Engineered with EOS’s patented Three Shelf Technology, the Mythos S35 is built to deliver fast, consistent, and evenly distributed heat throughout the entire sauna room. This advanced heat-channeling system helps eliminate cold spots by guiding warmth from floor to ceiling, ensuring every bench level receives balanced and comfortable heat. Whether used in an upscale residential sauna or a light commercial wellness setting, this heater creates a deeply immersive and reliable sauna environment.
With its efficient 7.5kW output, the EOS Mythos S35 is perfectly calibrated to warm sauna rooms up to 420 cubic feet while maintaining steady, comfortable temperatures throughout each session. The included EOS Cubius stones allow the heater to support up to 77 lbs. of premium sauna stones, giving users the ability to customize steam intensity, radiant heat, and overall sauna atmosphere. From gentle relaxation to a more invigorating heat experience, the Mythos S35 gives you the flexibility to shape every session to your preference.
Built with premium stainless steel components and thoughtful safety engineering, this heater is designed for dependable long-term performance. Integrated overheat protection and an automatic high-limit cut-off provide added peace of mind, while easy maintenance access helps keep operation simple and efficient. Stylish, powerful, and expertly crafted, the EOS Mythos S35 7.5kW Sauna Heater is an exceptional choice for anyone seeking professional-grade German engineering with a striking modern finish.
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.
| Feature | Description |
|---|---|
| Wood Material | Hemlock |
| Color | Natural Wood |
| Dimensions | 180 x 120 x 190 cm |
| Weight | 85 kg |
| SKU | 14-948012 |
Free shipping on orders over $100. Returns accepted within 30 days of purchase. Items must be in original condition with tags attached.
WHY CHOOSE SØVNA?
CURATED COLLECTION
Handpicked premium saunas selected by wellness experts for exceptional quality and authentic Nordic craftsmanship.
WHITE GLOVE DELIVERY
Full-service delivery to your home with professional unpacking, placement, and debris removal included.
EXPERT INSTALLATION
Comprehensive technical support and professional installation assistance from certified sauna specialists.
10-YEAR WARRANTY
Industry-leading 10-year comprehensive warranty on all premium products for complete peace of mind.
GENERIC PRODUCTS
Limited selection of mass-produced saunas without specialized expertise or quality curation standards.
CURBSIDE DELIVERY
Basic delivery to curb only. Unpacking, moving indoors, and installation entirely your responsibility.
NO SUPPORT
No technical assistance provided. Assembly and installation must be completed independently without guidance.
MINIMAL COVERAGE
Standard limited warranty of only 1-2 years with restricted coverage on products and components.