EOS Cubius S35 Soapstone Sauna Cube Set with Mounting Frame
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Give Your EOS Mythos S35 a Distinctive Geometric Finish
The EOS Cubius S35 set includes 20 precision-cut soapstone cubes and a stainless-steel mounting frame designed specifically for the EOS Mythos S35 sauna heater.
Choose White, Black, or Natural soapstone to complement your sauna design. The symmetrical Cubius arrangement enhances the heater's architectural appearance while supporting airflow, balanced heat distribution, and long-lasting steam during properly performed sauna infusions.
Functional Sauna Stones with Sculptural Design
EOS Cubius stones are crafted from solid soapstone and cut into precise cubic forms. The included stainless-steel frame holds the 20 stones in the intended symmetrical arrangement on the compatible Mythos S35 heater.
Soapstone absorbs and gradually releases heat. EOS designs the Cubius arrangement to support heater airflow, balanced heat distribution, and extended evaporation during a properly performed sauna infusion.
- Brand
- EOS
- Model
- EOS CUBIUS S35
- Product type
- Decorative soapstone sauna cube set
- Compatibility
- EOS Mythos S35
- Stone quantity
- 20 pieces
- Stone material
- Solid soapstone
- Available colors
- White, Black, and Natural
- Mounting frame
- Stainless steel, included
Premium Materials with Model-Specific Fit
The Cubius S35 combines natural soapstone, a structured mounting system, and three finish options developed for the EOS Mythos S35.
Complete S35 Stone Set
Includes 20 Cubius soapstone cubes in the quantity specified for the compatible EOS Mythos S35 heater.
Solid Soapstone Construction
Each cube is precision-cut from solid soapstone for effective heat storage and gradual heat release.
Three Finish Options
Select White, Black, or Natural to coordinate the Cubius stones with the heater finish, sauna wood, and overall room design.
Stainless-Steel Frame Included
The included mounting frame holds the stones in the intended symmetrical arrangement on the Mythos S35 heater.
Designed Around Heater Airflow
The Cubius arrangement is designed to support airflow and balanced heat distribution through the compatible heater.
Long-Lasting Infusions
The soapstone cubes retain heat and support extended steam generation when water is applied according to the heater manual.
The White and Black variants use a durable colored coating. The Natural variant displays the inherent appearance and variation of the soapstone.
Designed Specifically for the EOS Mythos S35
The EOS Cubius S35 is a model-specific 20-piece soapstone set supplied with a stainless-steel mounting frame for the EOS Mythos S35 sauna heater. Color selection does not change the intended heater compatibility.
Published Compatibility
- EOS Mythos S35 sauna heater
- 20-piece Cubius S35 stone arrangement
- Included S35 stainless-steel mounting frame
- White, Black, or Natural finish
Verify Before Ordering
- Heater manufacturer is EOS
- Complete heater model is Mythos S35
- Heater identification label
- Required Cubius mounting arrangement
- Selected color and matching variant SKU
Model-specific accessory: Do not purchase this 20-piece S35 set for the larger Mythos S45. The S45 uses a different 24-piece Cubius configuration and separate product variants.
Choose White, Black, or Natural Soapstone
All three variants include 20 Cubius soapstone cubes and the stainless-steel mounting frame for the EOS Mythos S35. Select the color that best complements your sauna interior.
| Color | Stone Quantity | Bathing Brands SKU |
|---|---|---|
| White | 20 stones with mounting frame | 14-945938 |
| Black | 20 stones with mounting frame | 14-945942 |
| Natural | 20 stones with mounting frame | 14-945520 |
Natural soapstone may display variation in tone, markings, and surface character. Product images should be assigned to the corresponding Shopify color variant whenever possible.
EOS Cubius S35 Specifications
| Manufacturer | EOS |
|---|---|
| Model | EOS CUBIUS S35 |
| Product type | Decorative soapstone sauna cube set |
| Compatible heater | EOS Mythos S35 |
| Stone quantity | 20 pieces |
| Stone material | Solid soapstone |
| Stone shape | Precision-cut cubic form |
| Available colors | White, Black, and Natural |
| White SKU | 14-945938 |
| Black SKU | 14-945942 |
| Natural SKU | 14-945520 |
| Colored finish properties | White and Black variants use a heat-resistant and scratch-resistant coating |
| Natural finish | Uncoated natural soapstone appearance with expected visual variation |
| Mounting frame | Stainless steel, included |
| Individual stone dimensions | Not published on the supplier listing |
| Set weight | Not published on the supplier listing |
| Package dimensions | Not published on the supplier listing |
| Warranty | Not published on the supplier listing |
Do not estimate individual stone dimensions, set weight, or package measurements from product photography. Confirm current supplier documentation when these measurements are required for a project.
What Is Included?
Included
- Twenty EOS Cubius S35 soapstone cubes
- Selected White, Black, or Natural finish
- One stainless-steel S35 mounting frame
- Variant-specific EOS configuration
Not Included
- EOS Mythos S35 sauna heater
- Sauna control system
- Power or relay box
- Sauna bucket or ladle
- Sauna essence or fragrance
- Professional installation
This listing is for the 20 Cubius stones and stainless-steel mounting frame in the color selected from the Shopify variant menu. The Mythos S35 heater shown in application photography is sold separately.
Confirm the Heater Model and Selected Color
Complete these checks before purchasing the Cubius S35 set.
Identify the Heater
Locate the heater identification label and confirm that the complete model name is EOS Mythos S35.
Confirm the S35 Set
Verify that the project requires the 20-piece S35 configuration rather than the 24-piece S45 set.
Select the Color
Choose White, Black, or Natural and confirm that the corresponding variant SKU appears in the cart before completing checkout.
Install the Cubes on the Included Mounting Frame
The stones must be arranged and secured using the supplied stainless-steel frame according to current EOS instructions. Correct placement is important for stability, heater airflow, and heat distribution.
- Disconnect and secure electrical power before installation
- Allow the heater and existing stones to cool completely
- Confirm the heater is an EOS Mythos S35
- Inspect the heater and stone compartment before installation
- Position the stainless-steel frame as directed by EOS
- Arrange all 20 cubes in the specified configuration
- Confirm that each cube is secure and stable
- Do not obstruct required heater airflow
- Inspect the completed arrangement before sauna operation
Important: Do not place loose Cubius cubes directly on or between exposed heating elements. Use the supplied mounting frame and follow the exact Mythos S35 installation instructions.
Use Water and Sauna Aromas According to EOS Instructions
The Cubius soapstone cubes retain heat and support gradual water evaporation. Water should be applied only after the heater reaches its normal operating temperature and only in the amount permitted by EOS.
Water Infusions
- Use clean water suitable for sauna heater use
- Apply a controlled amount with a sauna ladle
- Pour only in the location permitted by EOS
- Keep hands away from the hot cubes and heater
- Allow steam to disperse before adding more water
Aroma Infusions
- Use only sauna-compatible fragrance products
- Follow all dilution instructions
- Never apply undiluted essential oil to the cubes
- Stop use if irritation or discomfort occurs
- Remove residue according to EOS care guidance
Never pour excessive water onto the heater or allow fragrance concentrate to contact heating elements, electrical components, or surfaces not approved for infusion use.
Protect the Soapstone and Selected Finish
Recommended Care
- Allow the heater and stones to cool before handling
- Inspect each cube periodically for cracks or damage
- Check the mounting frame for secure positioning
- Remove residue using methods approved by EOS
- Keep heater airflow paths unobstructed
- Follow the Mythos S35 maintenance schedule
Avoid
- Dropping or striking the soapstone cubes
- Handling the stones while hot
- Using abrasive tools on White or Black coatings
- Applying harsh chemical cleaners
- Using cracked or unstable cubes
- Operating the heater with a loose mounting frame
Natural soapstone may vary in tone, grain, surface markings, and texture. These natural differences are not necessarily defects.
Why Buy EOS Sauna Accessories from My Luxury Home Spa?
Authentic EOS Equipment
Shop genuine EOS sauna heaters, controls, replacement parts, and model-specific accessories through a trusted wellness retailer.
Compatibility Assistance
Send us the model information from your heater when you need help distinguishing between the S35 and S45 Cubius configurations.
Clear Variant Information
Review the color, quantity, variant SKU, mounting frame, compatibility, and installation guidance before ordering.
EOS Cubius S35 FAQ
What is the EOS Cubius S35 set?
It is a decorative sauna stone set containing 20 precision-cut solid soapstone cubes and a stainless-steel mounting frame for the EOS Mythos S35 heater.
Which colors are available?
The EOS Cubius S35 is available in White, Black, and Natural soapstone variants.
Do the color options use different SKUs?
Yes. White is SKU 14-945938, Black is SKU 14-945942, and Natural is SKU 14-945520.
How many stones are included?
Every S35 color variant includes 20 Cubius soapstone cubes.
Is the mounting frame included?
Yes. A stainless-steel mounting frame for installation on the compatible Mythos S35 heater is included with each color variant.
Which sauna heater is compatible?
This 20-piece Cubius set is specifically listed for the EOS Mythos S35 sauna heater.
Does this set fit the EOS Mythos S45?
No. The Mythos S45 uses a separate 24-piece Cubius set developed for the larger heater.
What are the cubes made from?
The cubes are precision-cut from solid soapstone.
Are the White and Black finishes heat-resistant?
EOS describes the colored variants as having a durable, heat-resistant and scratch-resistant coating designed for changing sauna temperatures.
Will the Natural stones all look identical?
No. Natural soapstone can vary in tone, markings, texture, and other visual characteristics.
Can water be poured onto the Cubius stones?
Water may be applied when permitted by the Mythos S35 operating instructions. Use a controlled amount and follow all EOS guidance.
Can sauna fragrance be used with the stones?
Use only sauna-compatible fragrance products that have been diluted and applied according to their instructions. Do not apply undiluted essential oils to the hot stones.
Is the Mythos S35 heater included?
No. This listing includes the 20 Cubius stones and mounting frame in the selected color. The sauna heater and control system are sold separately.
Verify Your EOS Mythos Heater Model
Send us the complete model information from your EOS sauna heater when you need help confirming whether this 20-piece Cubius S35 set is the correct configuration.
Why Buy From Us
FAQs
Shipping & Delivery
Free shipping available on select orders. White-glove delivery and setup can be arranged at an additional cost in most areas. We'll confirm your preferred date after purchase.
Warranty
Full manufacturer warranty, registered at purchase. Need help with a claim? Our U.S. support team handles it directly with the brand.
Returns
New, uninstalled items can be returned within the brand's policy window. We'll help coordinate pickup and any restocking requirements.
Installation & Power
Most saunas/hot tubs require dedicated circuits. We provide spec sheets and can recommend licensed installers in your area.
