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EOS Invisio Midi
EOS Invisio Midi

The EOS Invisio Midi 9kW is a professional-grade under-bench sauna heater meticulously handcrafted in Germany for sauna rooms up to 495 cubic feet. Constructed from premium stainless steel for superior corrosion resistance, this model is the ideal solution for users seeking a minimalist interior, as its discreet under-bench installation maximizes cabin space while maintaining high-performance thermal output. Featuring a stone chamber that supports up to 44 lbs of stones for gentle, steam-ready radiant heat, the Invisio Midi ensures a tranquil and quiet operational experience. By integrating advanced safety-focused heat shields and a modular design compatible with EOS control units, this heater provides the industry-standard balance of safety, easy maintenance access, and sophisticated engineering for premium residential and commercial sauna environments that demand hidden, high-efficiency heating.

  • Hidden Underbench Design – Installs discreetly beneath the sauna bench, maximizing usable space while preserving a clean, minimalist interior for a seamless and elegant sauna environment.
  • Powerful 9kW Heating – Delivers even, consistent heat for sauna rooms up to 495 cu. ft., ensuring rapid warm-up and a comfortable, immersive experience without cold spots.
  • Premium Stainless Steel Finish – Corrosion-resistant and visually striking, this durable construction enhances sauna aesthetics while maintaining long-lasting performance in high-humidity environments.
  • Quiet, Efficient Operation – Engineered with low-noise airflow and high-efficiency heating, providing a tranquil, relaxing sauna session without distracting mechanical sounds.
  • Stone Chamber Heating – Supports up to 44 lbs of stones, enabling gentle, steam-ready radiant heat that enhances humidity control and overall sauna comfort.
  • Safety-Oriented Design – Internal heat shields and proper clearances protect users and ensure safe installation even in compact or tight sauna layouts.
  • Handcrafted in Germany – Precision-engineered using high-grade components, guaranteeing reliability, longevity, and premium performance for both residential and commercial use.
  • MPN: EOS-14-947547
  • Compatibility: Residential or commercial sauna up to 495 cu ft
  • Part Type: Underbench Electric Sauna Heater
  • What’s Included: Installation components (control units sold separately)
  • Voltage / Phase: 240V / 2 Phase, 60 Hz
  • Wattage: 9 kW
  • Dimensions (H×W×D): 2.3–2.5 ft × 3.8 ft × 1.2 ft
  • Weight: 53–55 lbs (without stones)
  • Material: Stainless steel
  • Room Size (cu ft): 313–495
  • Stone Capacity: 44 lbs
  • Control Compatibility: EOS EmoTouch 3, Emotec D, and other EOS control units (sold separately)
  • Installation: Hidden underbench design with minimum air inlet/outlet 1.2 × 0.2 ft
  • Country of Origin: Germany

EOS Invisio Midi 9kW - Stainless Steel

by EOS
SKU: EOS-14-947547
$5,860.00
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✓ FREE Sauna Stones: Includes 44 lbs diabase sauna stones.

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The EOS Invisio Midi 9kW is a professional-grade under-bench sauna heater meticulously handcrafted in Germany for sauna rooms up to 495 cubic feet. Constructed from premium stainless steel for superior corrosion resistance, this model is the ideal solution for users seeking a minimalist interior, as its discreet under-bench installation maximizes cabin space while maintaining high-performance thermal output. Featuring a stone chamber that supports up to 44 lbs of stones for gentle, steam-ready radiant heat, the Invisio Midi ensures a tranquil and quiet operational experience. By integrating advanced safety-focused heat shields and a modular design compatible with EOS control units, this heater provides the industry-standard balance of safety, easy maintenance access, and sophisticated engineering for premium residential and commercial sauna environments that demand hidden, high-efficiency heating.

  • Hidden Underbench Design – Installs discreetly beneath the sauna bench, maximizing usable space while preserving a clean, minimalist interior for a seamless and elegant sauna environment.
  • Powerful 9kW Heating – Delivers even, consistent heat for sauna rooms up to 495 cu. ft., ensuring rapid warm-up and a comfortable, immersive experience without cold spots.
  • Premium Stainless Steel Finish – Corrosion-resistant and visually striking, this durable construction enhances sauna aesthetics while maintaining long-lasting performance in high-humidity environments.
  • Quiet, Efficient Operation – Engineered with low-noise airflow and high-efficiency heating, providing a tranquil, relaxing sauna session without distracting mechanical sounds.
  • Stone Chamber Heating – Supports up to 44 lbs of stones, enabling gentle, steam-ready radiant heat that enhances humidity control and overall sauna comfort.
  • Safety-Oriented Design – Internal heat shields and proper clearances protect users and ensure safe installation even in compact or tight sauna layouts.
  • Handcrafted in Germany – Precision-engineered using high-grade components, guaranteeing reliability, longevity, and premium performance for both residential and commercial use.
  • MPN: EOS-14-947547
  • Compatibility: Residential or commercial sauna up to 495 cu ft
  • Part Type: Underbench Electric Sauna Heater
  • What’s Included: Installation components (control units sold separately)
  • Voltage / Phase: 240V / 2 Phase, 60 Hz
  • Wattage: 9 kW
  • Dimensions (H×W×D): 2.3–2.5 ft × 3.8 ft × 1.2 ft
  • Weight: 53–55 lbs (without stones)
  • Material: Stainless steel
  • Room Size (cu ft): 313–495
  • Stone Capacity: 44 lbs
  • Control Compatibility: EOS EmoTouch 3, Emotec D, and other EOS control units (sold separately)
  • Installation: Hidden underbench design with minimum air inlet/outlet 1.2 × 0.2 ft
  • Country of Origin: Germany