A Premium Finnish Sauna Heater with Wi-Fi Control

Bring elegant design, traditional stone heating, and connected controls to your sauna with the Harvia Spirit Sauna Heater with Rocks and Wi-Fi Control, available through Wellness Edge Frontier.

The Harvia Spirit is a wall-mounted electric sauna heater designed and manufactured in Finland, combining a distinctive curved form with generously exposed rounded sauna stones. Its integrated ventilation channels are designed to improve airflow through the heating elements while helping protect surrounding sauna structures.

The referenced Art of Steam Co. package is offered with Harvia Xenio Wi-Fi control and currently includes the heater and a substantial stone package. The 6 kW configuration is identified with a 110 lb minimum stone requirement using four boxes of R-991 stones, while Harvia's current technical specifications identify approximately 60 kg / 132.3 lbs of stone capacity for the 6 kW Wi-Fi model.

The Spirit is designed with integrated safety features specifically suited to remote operation. Its safety system prevents the heater from starting when objects are detected on top, while dual sensors monitor the heater and sauna temperature to help prevent overheating.

At Wellness Edge Frontier, we carefully curate premium sauna equipment that combines trusted Finnish engineering, thoughtful design, traditional sauna function, and modern control technology.

Why You'll Love It

Elegant Curved Design

The Harvia Spirit features a distinctive curved, organic shape that gives the heater a refined contemporary appearance while allowing the rounded sauna stones to remain prominently visible.

Finnish-Made Quality

Harvia identifies the Spirit as a high-quality sauna heater designed and manufactured in Finland.

Wall-Mounted Installation

The Spirit uses a wall-mounted vertical installation, helping preserve floor space inside the sauna while creating a clean, integrated appearance.

Traditional Stone-Based Heating

The Spirit combines electric heating elements with a large quantity of sauna stones, supporting the traditional use of heated rocks and water for sauna steam.

Large Visible Stone Mass

The heater's design intentionally places a substantial amount of sauna stone in a visible position. Harvia recommends round olivine diabase stones measuring approximately 5–10 cm for the Spirit.

Built-In Ventilation Channels

Unique ventilation ducts are integrated into the heater design to improve airflow through the heating elements, support even heat distribution, and help cool surrounding wall structures.

Fast Heating Design

Harvia describes the Spirit as a heater that heats the sauna quickly, while the ventilation-channel design supports airflow through the heating elements. Actual heat-up time depends on sauna construction, room volume, ambient conditions, and installation.

Integrated Safety for Remote Operation

One of the Spirit's notable features is its integrated safety system. Harvia states that the heater cannot be turned on when an item is left on top of it, helping make remote startup safer.

Dual Temperature-Safety Sensors

The referenced package description identifies dual safety sensors, with one monitoring the heater and another monitoring the sauna-room temperature to help prevent overheating.

Xenio Wi-Fi Control

The referenced 6 kW package includes the Harvia Xenio CX30-U1-U3-XW Wi-Fi control system, allowing sauna settings to be managed from a smartphone or tablet through the connected system.

Remote Control & Monitoring

The Xenio Wi-Fi system provides remote control and monitoring through Wi-Fi and the compatible MyHarvia environment.

Control Temperature, Time, Lighting & Fan

The Xenio control system can manage temperature, operating time, lighting, and fan functions when compatible equipment is connected.

Flexible Control Panel Placement

The Xenio control panel can be installed inside or outside the sauna room, providing greater flexibility during sauna design and installation.

Compact Control Panel

The referenced Xenio control panel measures approximately 3.4" W × 1.0" D × 4.4" H, allowing it to fit neatly into a variety of sauna-control layouts.

Designed for Residential Saunas

Harvia's current Spirit specifications identify the product's user group as households and its use environment as an interior wet-area sauna environment for the applicable North American models.

Designed for Your Wellness Edge Frontier Space

The Harvia Spirit Sauna Heater with Rocks and Wi-Fi Control is designed for customers who want a traditional electric sauna heater with a more refined architectural appearance and modern remote-control capability.

Its compact wall-mounted design works particularly well in home saunas and other properly constructed interior sauna rooms where the heater's room-volume and electrical requirements can be satisfied.

The exposed rounded stones give the Spirit a distinctive visual presence, while the curved black housing adds a modern design element. Combined with Xenio Wi-Fi control, this configuration provides a balance between traditional sauna heating and contemporary connected-home functionality.

At Wellness Edge Frontier, we believe premium sauna equipment should be as thoughtfully designed as the wellness space around it.

Product Specifications

General

• Brand: Harvia
• Product Family: Spirit
• Product Type: Electric sauna heater
• Installation: Wall-mounted
• Installation Orientation: Vertical
• Primary Material: Steel
• Finish: Black
• Heating Method: Electric with sauna stones
• Control: Harvia Xenio Wi-Fi digital control
• Remote Control: Yes, through MyHarvia-compatible Wi-Fi system
• Recommended User Group: Household
• Use Environment: Interior wet-area sauna
• Certificates: CE / EAC for the referenced Spirit Wi-Fi model
• Stone Type: Round Olivine Diabase
• Recommended Stone Size: 5–10 cm
• Wi-Fi: Yes

Available Heater Configurations

The referenced Art of Steam Co. listing offers the Harvia Spirit package in multiple heater/control configurations. The page specifically identifies the 6 kW configuration with Xenio Wi-Fi and a separate 8/9 kW control selection, with the exact heater variant determined by the product selection.

6.0 kW Spirit Configuration

Harvia's current North American 6 kW Spirit Wi-Fi model is the SP60XW, with a recommended sauna-room volume of approximately 177–283 cubic feet.

Current technical specifications include:

• Power: 6 kW
• Room Volume: 177–283 ft³
• Height: 687 mm / approximately 27.0"
• Width: 385 mm / approximately 15.2"
• Depth: 334 mm / approximately 13.1"
• Net Heater Weight: Approximately 13 kg / 28.7 lbs
• Stone Amount: Approximately 60 kg / 132.3 lbs

9.0 kW Spirit Configuration

Harvia's current North American SP90XW 9 kW Wi-Fi model is designed for sauna rooms approximately 283–494 cubic feet.

Current technical specifications include:

• Power: 9 kW
• Room Volume: 283–494 ft³
• Height: Approximately 27.05"
• Width: Approximately 15.16"
• Depth: Approximately 13.15"
• Net Heater Weight: Approximately 26.5 lbs
• Stone Amount: Approximately 132.3 lbs

Heater & Sauna Stone System

Traditional Electric Heating

The Spirit is an electric sauna heater that heats a large stone mass, maintaining the traditional relationship between heater, sauna stones, heat, and steam.

Rounded Olivine Diabase Stones

Harvia recommends round olivine diabase sauna stones measuring approximately 5–10 cm for the Spirit series.

Large Stone Capacity

The current North American 6 kW and 9 kW Wi-Fi Spirit specifications identify approximately 60 kg / 132.3 lbs of stone capacity.

The Art of Steam package description additionally specifies a minimum of 110 lbs of stones, four boxes of R-991, for the 6 kW package.

Because retailer package descriptions and current Harvia technical specifications use slightly different stone figures, the exact included quantity should be confirmed against the selected package.

Xenio Wi-Fi Control System

Digital Touch Control

The Xenio control system uses a compact digital touchscreen for sauna control.

Wi-Fi Connectivity

The system provides Wi-Fi connectivity for remote control and monitoring, allowing compatible sauna functions to be managed using a smartphone or tablet.

MyHarvia Compatibility

Harvia identifies the Spirit Wi-Fi models as compatible with MyHarvia, providing a connected interface for remote sauna management.

Control Functions

The Xenio system can manage:

• Operating time
• Sauna temperature
• Lighting
• Fan/ventilation functions when compatible equipment is connected

Installation Location

The Xenio control panel can be installed inside or outside the sauna room.

Integrated Safety Features

The Spirit's integrated safety design is especially relevant to its Wi-Fi capability.

Harvia states that the heater is designed so that it cannot be activated remotely when objects are left on top of it, helping reduce the risk associated with unattended startup.

The referenced retailer description additionally identifies dual safety sensors, with separate monitoring of the heater and sauna-room temperature.

These features should not replace normal supervision, installation requirements, or manufacturer safety procedures.

What's Included

The referenced Art of Steam Co. package identifies the following core components for the Wi-Fi configuration:

• Harvia Spirit sauna heater
• Harvia Xenio Wi-Fi control system
• Wi-Fi/control power components
• Sauna stones according to the selected package
• Heater mounting components
• Installation/control documentation

For the 6 kW package, Art of Steam identifies R-991 round sauna stones, with a minimum package quantity of approximately 110 lbs.

The exact stone quantity and accessories should be verified against the selected product variant because the retailer offers multiple heater/control configurations.

Installation & Electrical Requirements

The Harvia Spirit is a high-voltage electric sauna heater and must be installed according to the exact model's Harvia installation documentation and applicable electrical requirements. Current North American Spirit specifications identify high-voltage electrical service for the applicable models.

Electrical installation should be completed by a qualified/licensed electrician familiar with sauna equipment.

The exact circuit, conductor, breaker, and voltage requirements depend on the specific Spirit model and electrical configuration ordered.

Customers should verify:

• Exact heater model number
• Voltage and phase
• Sauna-room volume
• Required clearances
• Proper control-unit installation
• Proper temperature-sensor placement
• Appropriate electrical protection
• Compliance with local electrical and building codes

Sauna Room Compatibility

Correct heater sizing is determined by sauna-room volume and construction characteristics, rather than simply by the number of sauna users.

Current Harvia specifications identify:

6 kW Spirit

177–283 cubic feet

9 kW Spirit

283–494 cubic feet

When selecting a heater, the actual sauna-room volume should be calculated using the appropriate Harvia sizing guidance, including adjustments required for significant glass or other construction characteristics.

Safety & Installation Considerations

Before installation and operation:

• Verify the exact Spirit heater model and wattage.
• Confirm the sauna room falls within the specified volume range.
• Match electrical service to the exact heater configuration.
• Maintain all required safety clearances.
• Mount the heater according to Harvia's instructions.
• Use the recommended sauna stones.
• Load stones according to the manufacturer instructions.
• Keep the heater area free of unauthorized objects or materials.
• Install the control panel and temperature sensor correctly.
• Have electrical connections completed by a qualified electrician.
• Follow Harvia's complete installation and operating manual before use.

The Spirit's remote-control capability does not eliminate the need for proper installation and safe sauna operating practices.

Maintenance & Care

For continued reliable operation:

• Inspect sauna stones periodically.
• Replace cracked or deteriorated stones.
• Remove loose stone fragments from the heater.
• Keep air channels unobstructed.
• Inspect the heating elements and heater enclosure.
• Keep the control panel clean and dry according to its instructions.
• Have electrical components checked by a qualified professional when necessary.
• Follow Harvia's maintenance recommendations for the exact model.

The large stone compartment should be maintained so that the heating elements receive the airflow specified by Harvia.

Warranty

The referenced Art of Steam Co. product page does not clearly state a specific warranty duration for the exact Harvia Spirit with Rocks and Wi-Fi Control package.

Harvia's warranty terms can depend on the exact model, market, and purchase channel. The warranty applicable to the exact Wellness Edge Frontier SKU should therefore be confirmed before publication of a specific warranty period.

Why Choose Wellness Edge Frontier?

At Wellness Edge Frontier, we carefully curate premium sauna equipment for customers who want trusted technology, elegant design, and practical control options.

Wellness Edge Frontier
Premium Wellness Products for Your Home & Lifestyle

✔ Carefully Curated Sauna Equipment
✔ Finnish-Made Harvia Technology
✔ Traditional Stone-Based Sauna Heating
✔ Wi-Fi-Enabled Control Options
✔ Premium Contemporary Design
✔ Detailed Product Information
✔ Personalized Customer Support

Frequently Asked Questions

What is the Harvia Spirit?

The Harvia Spirit is a wall-mounted electric sauna heater with a curved modern design, a large visible stone compartment, integrated ventilation channels, and advanced safety features. It is designed and manufactured in Finland.

Is the Harvia Spirit electric?

Yes. The Spirit uses an electric high-voltage heating system with sauna stones.

Is the Spirit wall-mounted?

Yes. The Spirit is designed for vertical wall-mounted installation.

Is Wi-Fi included?

For the referenced Art of Steam configuration, Harvia Xenio Wi-Fi control is included.

Can I control the sauna remotely?

Yes. The Xenio Wi-Fi system supports remote control and monitoring through Wi-Fi and MyHarvia-compatible functionality.

What can I control remotely?

The connected control system can manage temperature, operating time, lighting, and fan functions when compatible components are connected.

Can the control panel be installed outside the sauna?

Yes. The Xenio control panel can be installed inside or outside the sauna room.

What power options are available?

The current Art of Steam listing provides a 6 kW configuration and an 8/9 kW control selection, while Harvia's current North American Spirit Wi-Fi models include 6 kW and 9 kW versions.

What sauna size does the 6 kW Spirit support?

Harvia currently lists the 6 kW Spirit Wi-Fi model for approximately 177–283 cubic feet.

What sauna size does the 9 kW Spirit support?

Harvia currently lists the 9 kW Spirit Wi-Fi model for approximately 283–494 cubic feet.

How much stone does the Spirit hold?

Current North American specifications identify approximately 60 kg / 132.3 lbs of stone capacity for the 6 kW Wi-Fi Spirit and approximately 132.3 lbs for the 9 kW Wi-Fi model.

What stones are recommended?

Harvia recommends round olivine diabase stones approximately 5–10 cm in diameter.

Are rocks included?

Yes. The referenced Art of Steam configuration is sold with sauna rocks, with the 6 kW package description specifying a minimum of approximately 110 lbs of R-991 stones.

Why does the heater have so many visible stones?

The Spirit's design intentionally showcases a large quantity of sauna stones while maintaining a modern curved profile.

Does the Spirit heat the sauna quickly?

Harvia describes the Spirit as a heater that heats quickly, although actual heat-up time depends on sauna-room construction, volume, temperature, insulation, ventilation, and installation conditions.

What makes the ventilation system different?

The Spirit incorporates integrated ventilation channels that guide airflow through the heating elements and help cool surrounding wall structures while promoting more even heat distribution.

Does it have safety features for remote startup?

Yes. Harvia states that the integrated safety system prevents the heater from starting when something is left on top of it, which supports safer remote operation.

Does it have temperature sensors?

Yes. The referenced retailer description identifies dual safety sensors, including one monitoring the heater and one monitoring sauna temperature.

What is the 6 kW Spirit's size?

The current Harvia SP60XW specification is approximately 27.0" high × 15.2" wide × 13.1" deep.

What is the 9 kW Spirit's size?

The current Harvia SP90XW specification is approximately 27.05" high × 15.16" wide × 13.15" deep.

How much does the heater weigh?

The current 6 kW Wi-Fi model weighs approximately 28.7 lbs before accounting for the sauna stones.

The current 9 kW Wi-Fi model weighs approximately 26.5 lbs before the sauna stones.

Is it suitable for a home sauna?

Yes. Harvia identifies the Spirit Wi-Fi model's user group as households.

Can the Spirit be installed outdoors?

The current North American Wi-Fi Spirit specifications identify an interior wet-area use environment. Outdoor installation should therefore not be assumed for this configuration without confirmation of the exact model and installation requirements.

Does it require a professional electrician?

Yes. The Spirit is a high-voltage sauna heater and electrical installation should be completed by a qualified professional according to the exact model requirements.

Does it use a separate control box?

The referenced Art of Steam package uses Xenio Wi-Fi control equipment in addition to the heater. The control system selection and power-unit requirements depend on the selected Spirit configuration.

What is the warranty?

The exact warranty duration for this particular package is not clearly stated on the referenced retailer page. The warranty for the Wellness Edge Frontier SKU should be confirmed before publication.

What is the current price?

The referenced Art of Steam listing currently displays the 6 kW Xenio Wi-Fi configuration at $3,095, reduced from $3,439, although pricing can change and other configurations may carry different prices.