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EOS Cubius Stones
EOS Cubius Stones
EOS Cubius Stones
EOS Cubius Stones
EOS Cubius Stones

EOS Cubius Stones (S45) introduce a sculptural, modern aesthetic to the EOS Mythos S45 heater while elevating thermal performance. Made from solid soapstone, each cubic stone absorbs heat deeply and releases it gradually, resulting in smoother, longer-lasting infusions that enhance the overall sauna atmosphere. The uniform geometry allows the twenty-four stones to stack cleanly within the included stainless steel mounting frame, creating a structured, designer look that complements contemporary sauna interiors. Available in natural soapstone as well as black or white coated versions, the collection offers options for tailoring color and style without sacrificing durability. The coated editions feature surfaces engineered to resist scratching and high temperatures, ensuring the finish remains crisp over time. With their balance of visual impact and reliable heat retention, EOS Cubius Stones (S45) provide a thoughtful upgrade for users seeking both performance and refined design.

  • Solid soapstone thermal core – Dense soapstone cubes absorb heater output deeply and release it gradually, supporting smoother temperature curves and longer-lasting steam so infusions feel richer and more consistent throughout each sauna session.
  • Modern cubic stone design – Uniform geometric blocks stack into a sculptural column, turning the EOS Mythos S45 into a design centerpiece that elevates contemporary sauna interiors without compromising thermal performance or airflow around the heater.
  • Extended infusion performance – High thermal mass helps the stones retain heat between ladles of water, extending fragrance and steam duration so each infusion remains pleasantly present instead of fading quickly between pours.
  • Three coordinated finishes – Offered in natural, black, and white, the Cubius stones let you match or contrast heater trim and wood tones, giving precise control over the visual character of your sauna while maintaining identical heat behavior.
  • Durable coated editions – Black and white versions feature a heat- and scratch-resistant coating that resists fading, discoloration, and surface wear, keeping the column’s crisp, premium appearance intact under frequent, high-temperature use.
  • Complete S45-ready set – Supplied as twenty-four stones with a stainless steel mounting frame engineered for EOS Mythos S45, ensuring secure fit, clean stacking, and straightforward installation with no guesswork or additional hardware.
  • MPN: Black 945943 / White 945939 / Natural 945521
  • Compatibility: EOS Mythos S45 sauna heater
  • Part Type: Sauna heater stones set with mounting frame
  • What’s Included: 24 Cubius stones and stainless steel mounting frame
  • Product Name: EOS Cubius Stones (S45)
  • Material: Solid soapstone
  • Finish Options: Natural soapstone; coated black; coated white
  • Coating Properties (Black/White): Heat- and scratch-resistant surface
  • Operation: High thermal mass stones retain and release heat gradually for smoother, longer-lasting infusions
  • Applications: Designed to enhance heat performance and provide a modern, sculptural heater appearance
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Cubius Stones (S45) | EOS

by EOS
SKU: EOS-945521
$2,188.00 $1,532.00 30% off
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EOS Cubius Stones (S45) introduce a sculptural, modern aesthetic to the EOS Mythos S45 heater while elevating thermal performance. Made from solid soapstone, each cubic stone absorbs heat deeply and releases it gradually, resulting in smoother, longer-lasting infusions that enhance the overall sauna atmosphere. The uniform geometry allows the twenty-four stones to stack cleanly within the included stainless steel mounting frame, creating a structured, designer look that complements contemporary sauna interiors. Available in natural soapstone as well as black or white coated versions, the collection offers options for tailoring color and style without sacrificing durability. The coated editions feature surfaces engineered to resist scratching and high temperatures, ensuring the finish remains crisp over time. With their balance of visual impact and reliable heat retention, EOS Cubius Stones (S45) provide a thoughtful upgrade for users seeking both performance and refined design.

  • Solid soapstone thermal core – Dense soapstone cubes absorb heater output deeply and release it gradually, supporting smoother temperature curves and longer-lasting steam so infusions feel richer and more consistent throughout each sauna session.
  • Modern cubic stone design – Uniform geometric blocks stack into a sculptural column, turning the EOS Mythos S45 into a design centerpiece that elevates contemporary sauna interiors without compromising thermal performance or airflow around the heater.
  • Extended infusion performance – High thermal mass helps the stones retain heat between ladles of water, extending fragrance and steam duration so each infusion remains pleasantly present instead of fading quickly between pours.
  • Three coordinated finishes – Offered in natural, black, and white, the Cubius stones let you match or contrast heater trim and wood tones, giving precise control over the visual character of your sauna while maintaining identical heat behavior.
  • Durable coated editions – Black and white versions feature a heat- and scratch-resistant coating that resists fading, discoloration, and surface wear, keeping the column’s crisp, premium appearance intact under frequent, high-temperature use.
  • Complete S45-ready set – Supplied as twenty-four stones with a stainless steel mounting frame engineered for EOS Mythos S45, ensuring secure fit, clean stacking, and straightforward installation with no guesswork or additional hardware.
  • MPN: Black 945943 / White 945939 / Natural 945521
  • Compatibility: EOS Mythos S45 sauna heater
  • Part Type: Sauna heater stones set with mounting frame
  • What’s Included: 24 Cubius stones and stainless steel mounting frame
  • Product Name: EOS Cubius Stones (S45)
  • Material: Solid soapstone
  • Finish Options: Natural soapstone; coated black; coated white
  • Coating Properties (Black/White): Heat- and scratch-resistant surface
  • Operation: High thermal mass stones retain and release heat gradually for smoother, longer-lasting infusions
  • Applications: Designed to enhance heat performance and provide a modern, sculptural heater appearance