EOS Cubo Avantgarde 240/2 Floor Standing Sauna Heater
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EOS Cubo Avantgarde 240/2 Electric Sauna Heater
The EOS Cubo Avantgarde 240/2 combines high-performance traditional sauna heating with a bold architectural design. Its all-sided matte-black finish, compact freestanding footprint and elevated white quartz stone basket create a distinctive centerpiece for modern sauna rooms.
Choose the 7.5 kW model for sauna rooms from approximately 247 to 353 cubic feet or the 9 kW model for rooms from approximately 314 to 494 cubic feet. Both models are designed for fixed 240V two-phase electrical service.
A Designer Sauna Heater Built to Be Seen
The Cubo Avantgarde is designed for sauna rooms where the heater is part of the visual experience. Unlike heaters intended to be hidden against a wall or beneath a bench, the Cubo Avantgarde features a uniform matte-black appearance on every side.
Its symmetrical construction makes it especially well suited for installation in front of glass panels or near the center of the sauna. The distinctive raised stone basket holds decorative white quartz stones above the primary traditional stone compartment for a refined, modern appearance.
Avantgarde Styling
A luxurious matte-black finish and decorative white quartz stones create a bold visual focal point.
Freestanding Flexibility
The uniform appearance on all sides supports wall, glass-front and center-room installation layouts.
Traditional Sauna Performance
A large stone capacity promotes heat retention, airflow and satisfying steam when water is applied.
Premium Construction With Powerful Sauna Performance
Matte-Black Finish on All Sides
The scratch-resistant, powder-coated steel exterior provides a consistent architectural appearance from every viewing angle.
Quartz Stone Accent Basket
The raised stainless steel extension frame holds 22 pounds of included decorative white quartz stones.
77-Pound Stone Capacity
The heater includes 55 pounds of traditional sauna stones and 22 pounds of white quartz accent stones.
Service-Friendly Design
The sauna stones do not rest directly on the heating elements, supporting airflow and simplifying service access.
Compact Footprint
The heater measures approximately 15.7 inches wide and 15.2 inches deep while delivering heat for rooms up to 494 cubic feet.
Made in Germany
The Cubo Avantgarde is manufactured in Germany by EOS Saunatechnik.
Choose 7.5 kW or 9 kW
| Product Attribute | Available Configuration |
|---|---|
| Heater Output | 7.5 kW or 9 kW |
| Finish | Matte black Avantgarde finish |
| Electrical Configuration | 240V / 2PH AC / 60 Hz |
| Installation Type | Freestanding floor installation |
Important: Heater output is the only selectable option. The finish and electrical configuration are fixed. Have a qualified electrician verify 240V two-phase service and all electrical requirements before ordering.
Match the Heater to the Sauna Room
Choose the heater according to the usable interior volume of the sauna. Final sizing must also account for insulation, ceiling height, ventilation and heat loss from glass, tile, masonry and other non-insulated surfaces.
| Heater Output | Recommended Sauna Volume | Published Floor Area at 6.2-Foot Height |
|---|---|---|
| 7.5 kW | Approximately 247 to 353 cu. ft. | Approximately 39.8 to 57 sq. ft. |
| 9 kW | Approximately 314 to 494 cu. ft. | Approximately 50.6 to 79.7 sq. ft. |
The published sizing ranges overlap between approximately 314 and 353 cubic feet. In that range, final selection should be based on insulation, glass area, desired heat-up speed and the recommendation of the sauna designer or installer.
Complete the EOS Cubo Avantgarde System
The Cubo Avantgarde does not include a built-in control. A compatible external EOS sauna control and appropriately configured power equipment are required for operation.
Required: EOS Sauna Control
Choose an EOS control system compatible with traditional dry sauna operation and the selected heater output.
Required: EOS Power Box
A compatible Power Box provides the switching interface between the external sauna control and the heater.
Included: Sauna Stones
The heater includes approximately 55 pounds of traditional sauna stones and 22 pounds of decorative white quartz stones.
Required: Professional Installation
Electrical connections, control wiring, ventilation and heater placement must be completed by qualified professionals.
System compatibility matters: The sauna control, Power Box, sensors and electrical components must match the 240V two-phase configuration and selected heater output.
Traditional Heat With a Distinctive Quartz Accent
The Cubo Avantgarde uses a two-level stone arrangement. The lower internal compartment holds traditional sauna stones, while the raised architectural extension frame holds decorative white quartz stones.
This configuration creates a distinctive visual effect while providing a large total stone mass for heat retention and steam production.
55 Pounds of Traditional Stones
The internal stone compartment holds the primary sauna stones used for heat storage and steam generation.
22 Pounds of White Quartz
The included white quartz stones fill the raised Avantgarde extension basket and create the heater’s signature appearance.
77 Pounds Total
The complete included stone load supports heat retention and a satisfying traditional sauna experience.
Ideal for Glass Walls and Open Sauna Layouts
The Cubo Avantgarde is finished on all sides, allowing it to be installed where multiple sides remain visible. Its compact, symmetrical footprint works especially well in contemporary sauna cabins with extensive glass or open sight lines.
In Front of Glass Panels
The finished rear and side surfaces allow the heater to complement transparent glass walls without exposing an unfinished back panel.
Near the Center of the Sauna
The uniform exterior supports freestanding layouts where the heater is visible from several directions.
Against a Sauna Wall
The heater can also be installed closer to a wall when all required clearances and ventilation rules are followed.
Optional Guard-Rail Brackets
Optional four-sided mounting brackets are available for constructing an appropriate wooden heater guard rail.
EOS Cubo Avantgarde 240/2 Specifications
| Heater Type | Freestanding electric sauna heater |
|---|---|
| Sauna Type | Traditional dry Finnish sauna |
| Available Outputs | 7.5 kW and 9 kW |
| Electrical Configuration | 240V / 2PH AC / 60 Hz |
| Finish | Scratch-resistant matte-black powder-coated steel on all sides |
| Top Extension | Stainless steel with matte-black finish |
| Stone Basket | Stainless steel positioned above the heating elements |
| Dimensions | Approximately 28.3 in H × 15.7 in W × 15.2 in D |
| Total Stone Capacity | Approximately 77 lbs |
| Traditional Stones | Approximately 55 lbs included |
| White Quartz Stones | Approximately 22 lbs included |
| Weight Without Stones | Approximately 62 lbs |
| Recommended Sauna Volume | Approximately 247 to 494 cu. ft., depending on output |
| Installation | Freestanding floor installation |
| Minimum Side Clearance | Approximately 2.4 inches, subject to the complete installation requirements |
| Minimum Ceiling Height | Approximately 6.5 feet |
| Control Type | Compatible external EOS sauna control required |
| Terminal Box | Recessed in the front panel with cable connection from below |
| Ingress Protection | IPX4 |
| Country of Manufacture | Germany |
| Manufacturer Warranty | 2 years, subject to manufacturer terms |
Published specifications are provided for preliminary planning. Verify all dimensions, clearances, conductor sizes, fuse protection and installation requirements in the official EOS documents before construction or electrical work begins.
240V Two-Phase Electrical Requirements
Every heater on this product page is configured for 240V two-phase AC service at 60 Hz. Electrical work must be completed by a qualified electrician in accordance with the EOS manual and applicable local codes.
| Heater Output | Electrical Service | Published 240V Fuse Protection | Minimum Copper Conductor |
|---|---|---|---|
| 7.5 kW | 240V / 2PH AC / 60 Hz | 15 A | 12 AWG |
| 9 kW | 240V / 2PH AC / 60 Hz | 20 A | 12 AWG |
The technical sheet lists minimum manufacturer values. The electrician must determine final conductor size, overcurrent protection and disconnect requirements based on applicable codes, conductor length, installation conditions and the complete control system.
Coordinate the Heater, Cabin and Control System
Step 1
Confirm Sauna Size
Calculate usable interior volume and account for glass, tile, masonry and other heat-loss surfaces.
Step 2
Plan Heater Placement
Select a level, suitable floor location while maintaining all wall, guard-rail and ceiling clearances.
Step 3
Select the Control System
Match the 7.5 kW or 9 kW heater with a compatible EOS control and appropriately configured Power Box.
Step 4
Complete Professional Installation
Have the electrical connections, ventilation, sensors and safety equipment installed and commissioned by qualified professionals.
Maintain a Safe Heater Installation
The Cubo Avantgarde becomes extremely hot during operation. The heater must be installed on a stable, level surface that can safely withstand heat and the combined weight of the heater and stones.
- Maintain approximately 2.4 inches from the heater to adjacent sauna walls where specified.
- Maintain the required distance between the top of the heater and the sauna ceiling.
- Use a suitable heater guard rail around accessible sides.
- Do not install the heater on easily flammable flooring such as laminate or synthetic flooring.
- Ceramic tile or another appropriate heat-resistant surface is recommended.
- Do not install the Cubo Avantgarde beneath a bench, in an alcove or beneath a sloping roof.
- Never place towels, clothing or other objects on or above the heater.
Proper Airflow Supports Performance and Safety
The sauna cabin must include correctly sized fresh-air intake and exhaust openings. Insufficient ventilation can cause overheating, poor heat circulation and unsafe operating conditions.
| Heater Output | Published Minimum Air Inlet and Outlet |
|---|---|
| 7.5 kW | Approximately 13.8 in × 2 in |
| 9 kW | Approximately 13.8 in × 2.4 in |
Air inlets may be installed below or behind the heater approximately 2 to 4 inches above the floor. Exhaust openings should generally be positioned low on the opposite wall. Follow the EOS manual and cabin manufacturer’s instructions for the final layout.
Load the Stones for Airflow and Steam Performance
The Cubo Avantgarde includes both traditional sauna stones and decorative white quartz stones. The two stone types must be loaded into their intended compartments according to the manufacturer instructions.
Traditional Sauna Stones
- Rinse dust and loose debris from the stones before loading.
- Place stones loosely in the lower stone compartment.
- Maintain open air spaces between the stones.
- Do not force stones tightly against the heating elements.
White Quartz Stones
- Place the quartz stones in the raised Avantgarde extension basket.
- Arrange them securely so loose pieces cannot fall from the heater.
- Do not exceed the specified stone capacity.
- Inspect the decorative stones regularly for cracks or deterioration.
Do not operate the heater without the required stones. Incorrect loading can restrict airflow, shorten heating-element life or create an unsafe condition.
Create Traditional Finnish Sauna Steam
Once the sauna stones have reached operating temperature, small amounts of clean water may be poured over the stones to create steam.
- Use only clean water suitable for sauna use.
- Apply water in controlled amounts.
- Do not flood the heater or pour excessive water at one time.
- Do not use water containing chlorine, salt or other damaging substances.
- Use sauna fragrances only as directed and properly diluted.
- Never place fragrance containers or other objects on the heater.
Protect Long-Term Heater Performance
Inspect the Stones
Rearrange the stones periodically to maintain airflow. Replace stones that crack, crumble or significantly deteriorate.
Clean the Exterior
Allow the heater to cool completely before cleaning. Use appropriate non-abrasive methods that will not damage the matte-black finish.
Check the Cabin Before Use
Confirm that no towels, cleaning products or other objects have been placed on or near the heater.
Use Qualified Service Personnel
Electrical troubleshooting, heater-element replacement and internal repairs must be completed by qualified professionals.
What Is Included
Included With the Heater
- EOS Cubo Avantgarde 240/2 heater in the selected output
- Avantgarde stone-store extension frame
- Approximately 55 pounds of traditional sauna stones
- Approximately 22 pounds of white quartz stones
- Manufacturer documentation
Sold Separately
- Compatible EOS sauna control
- Compatible EOS Power Box
- Wooden heater guard rail
- Optional guard-rail mounting brackets
- Electrical wiring and installation materials
- Optional remote-connectivity and safety equipment
Download Cubo Avantgarde Technical Information
Review both manufacturer documents with your sauna designer, builder and electrician before ordering or beginning installation.
EOS Cubo Avantgarde Data Sheet
Review heater dimensions, output options, room-sizing ranges, electrical information, minimum clearances and included stone quantities.
EOS Cubo Avantgarde Installation and Operating Manual
Review safety requirements, cabin preparation, ventilation, electrical connections, stone loading, commissioning, operation and maintenance.
Support for Your Complete Sauna System
Configuration Guidance
We can help coordinate the heater output with a compatible EOS control and Power Box.
Complete-System Support
Purchase the heater, controls and compatible supporting components through one knowledgeable wellness-equipment retailer.
Veteran-Owned Business
My Luxury Home Spa is a veteran-owned company committed to responsive service, clear communication and long-term customer support.
Choose Your EOS Cubo Avantgarde 240/2
Select the 7.5 kW or 9 kW model for your sauna room. Contact My Luxury Home Spa for help coordinating the heater with the correct EOS control and Power Box.
EOS Cubo Avantgarde 240/2 FAQs
What is the EOS Cubo Avantgarde 240/2?
The EOS Cubo Avantgarde 240/2 is a premium freestanding electric sauna heater with an all-sided matte-black finish and a raised white quartz stone basket. It is available in 7.5 kW and 9 kW outputs.
What heater outputs are available?
This product is available in 7.5 kW and 9 kW. Heater output is the only selectable option.
What electrical service does it require?
Every model on this product page is configured for 240V / 2PH AC / 60 Hz electrical service.
Which heater size do I need?
- 7.5 kW: approximately 247 to 353 cubic feet
- 9 kW: approximately 314 to 494 cubic feet
Final sizing also depends on insulation, glass area, ceiling height, ventilation and other heat-loss factors.
Why do the sizing ranges overlap?
The manufacturer’s published ranges overlap between approximately 314 and 353 cubic feet. In this range, the final selection should account for insulation, glass area, desired heat-up time and expected use.
What finish does the heater have?
The Cubo Avantgarde has a scratch-resistant matte-black powder-coated finish on all sides, including the top.
Can I choose a stainless steel finish?
No. The Cubo Avantgarde 240/2 on this page is supplied in the fixed matte-black Avantgarde finish.
Are sauna stones included?
Yes. The heater includes approximately 55 pounds of traditional sauna stones and 22 pounds of decorative white quartz stones.
What are the white quartz stones for?
The white quartz stones fill the raised Avantgarde extension basket and create the heater’s distinctive architectural appearance. They also add to the total stone mass.
How large is the Cubo Avantgarde?
The heater measures approximately 28.3 inches high, 15.7 inches wide and 15.2 inches deep.
How much does it weigh?
The heater weighs approximately 62 pounds without stones. The included stones add approximately 77 pounds.
Can it be installed in front of a glass wall?
Yes. Its uniform matte-black finish on all sides makes it well suited for installation in front of glass panels when all manufacturer clearances are maintained.
Can it be installed near the center of the sauna?
Yes. The symmetrical, finished exterior supports center-room and open-layout installations when the required guard rail, ventilation and clearances are provided.
Does it require a heater guard rail?
A suitable heater guard rail should be installed around accessible sides. Optional four-sided mounting brackets are available, but the wooden guard rail itself is sold separately.
What minimum side clearance is required?
The technical sheet shows approximately 2.4 inches of minimum side clearance for the 7.5 kW and 9 kW versions. All complete installation requirements in the manual must also be followed.
What minimum ceiling height is required?
The technical documentation identifies a minimum sauna cabin height of approximately 6.5 feet.
Can it be installed under a sauna bench?
No. The Cubo Avantgarde is a freestanding exposed heater and is not designed for installation beneath a bench, in an alcove or under a sloping roof.
Does it include a built-in control?
No. A compatible external EOS sauna control and properly configured EOS Power Box are required.
Which EOS controls can be used?
Compatible control families include appropriately configured EOS Touch 3 and EOS EmoTec systems. The complete system must match the heater output and electrical configuration.
Can smartphone control be added?
Remote connectivity may be available when the heater is paired with an eligible EOS control and compatible connectivity equipment. An approved remote-start safety system may also be required.
Can water be poured over the stones?
Yes. Once the stones are fully heated, small controlled amounts of clean water may be poured over them to create traditional sauna steam.
Can the heater be installed on laminate flooring?
No. The manual warns against installation on easily flammable materials such as laminate or synthetic flooring. A suitable heat-resistant surface, such as ceramic tile, is recommended.
How should the stones be maintained?
Inspect and rearrange the stones periodically to preserve airflow. Replace stones that are cracked, crumbling or significantly deteriorated.
Can I install the heater myself?
The heater must be installed according to the official EOS instructions. Fixed electrical connections, control wiring and commissioning must be completed by a qualified electrician.
What is included with the heater?
The package includes the selected Cubo Avantgarde heater, the raised stone extension, approximately 55 pounds of traditional stones, approximately 22 pounds of white quartz stones and manufacturer documentation.
What warranty does it include?
The EOS Cubo Avantgarde includes a two-year manufacturer warranty, subject to manufacturer terms, proper installation, intended use and required maintenance.
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FAQs
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