The Harvia Spirit SP90E is a 9kW wall-mounted electric sauna heater designed for larger sauna rooms up to 600 cubic feet. Built in Finland and rated to UL 875 safety standards, the Spirit SP90E delivers consistent, efficient heat for residential and semi-commercial sauna spaces where standard-output heaters fall short. It is fully compatible with the Harvia Xenio control system for precise temperature and timer management, and its IPX4 moisture rating makes it well-suited for the humid conditions of a sauna environment. A wall-mounting bracket, safety device, and user manual are included for a straightforward installation process.
Why Customers Choose the Harvia Spirit SP90E
- 9kW output handles larger sauna rooms up to 600 cubic feet
- UL 875 listed — meets North American safety standards for electric sauna heaters
- IPX4 moisture rating suitable for sauna humidity levels
- Compatible with Harvia Xenio control centers for precise heat and timer management
- Wall-mounted design keeps the floor clear and simplifies room layout
- Optional LED lighting system available separately for ambiance customization
- Made in Finland by Harvia, with over 70 years of sauna equipment manufacturing experience
Product Highlights
9kW Output for Larger Sauna Rooms
The Spirit SP90E is rated for sauna rooms up to 600 cubic feet, making it a suitable step up from standard residential heaters for larger private or semi-commercial sauna spaces.
UL 875 Listed
The SP90E meets UL 875 safety standards for electric sauna heaters, supporting compliant permitted installations across North America.
IPX4 Moisture Protection
An IPX4 ingress protection rating means the heater is designed to withstand the splashing water and high humidity conditions typical of a sauna environment.
Xenio Control Compatibility
The SP90E is fully compatible with Harvia Xenio control centers, allowing precise temperature setting, timer programming, and — with the Xenio WiFi option — remote operation from a connected device.
Wall-Mounted Design
The included wall-mounting bracket positions the heater off the floor, keeping the sauna room layout flexible and simplifying cleaning around the unit.
Optional LED Lighting
An optional LED lighting system is available separately and can be integrated with the Spirit SP90E to customize the lighting atmosphere of your sauna room.
Made in Finland
Harvia has manufactured sauna equipment in Finland since 1950. The Spirit line is built to the material and engineering standards that Harvia's sauna-specific manufacturing is known for.
Specifications
| Model | Harvia Spirit SP90E (HSPE90U1M) |
|---|---|
| SKU | 120-HSPE90U1M |
| Power Rating | 9.0 kW |
| Fuel Type | Electric |
| Room Volume (Max) | 600 cubic feet |
| Voltage | 240V AC |
| Phase | 1-Phase |
| Frequency | 50/60 Hz |
| Required Amperage | 33.3A total (240V AC, 1PH, 60Hz) |
| Supply Cable | AWG8 (240V AC, 1PH, 60Hz) |
| IP Rating | IPX4 |
| Safety Standard | UL 875 |
| Height | 29.5" (749 mm) |
| Width | 15" (381 mm) |
| Depth | Approx. 13" (verify in installation manual) |
| Safety Clearances | Front: 3.2" — Sides: 3.2" — Ceiling: 35.5" — Floor: 4" |
| Stone Size | Ø5–10 cm |
| Stone Requirement | 4 boxes of rounded sauna stones (sold separately) |
| Unit Weight | 35 lbs |
| Origin | Finland |
In the Box
- Harvia Spirit SP90E 9kW Electric Sauna Heater
- Safety Device
- Wall-Mounting Bracket
- User Manual
Sauna stones (4 boxes of rounded stones, Ø5–10 cm) and Xenio control unit are sold separately and required for operation.
Ideal For
- Larger residential sauna rooms up to 600 cubic feet
- Semi-commercial sauna installations requiring higher output than standard residential heaters
- Sauna builds where wall-mounting is preferred to keep the floor clear
- Installations requiring UL 875 listed equipment for permit compliance
- Sauna rooms paired with a Harvia Xenio control system for programmable operation
Important Information
- Control unit sold separately: The SP90E requires a compatible Harvia Xenio control unit for operation. The control unit is not included and must be purchased separately.
- Professional installation required: This heater must be installed by a licensed electrician in accordance with local electrical codes and the Harvia installation manual. Improper installation voids the warranty and may create safety hazards.
- 240V, 1-phase connection required: Verify that your electrical supply meets the voltage, phase, and amperage requirements (33.3A at 240V AC, 1PH, 60Hz) before ordering. An AWG8 supply cable is required.
- Clearance requirements: Maintain all minimum safety clearances as specified: 3.2" front, 3.2" sides, 35.5" ceiling, 4" floor. Failure to observe clearances creates a safety hazard.
- Stones not included: Four boxes of rounded sauna stones (Ø5–10 cm) are required and must be purchased separately. Load stones per the manufacturer's instructions before first use.
- UL 875 listed: This unit is UL 875 listed for electric sauna heater use. Verify local permit requirements with your jurisdiction before installation.
Frequently Asked Questions
Does the SP90E include a control unit?
No. The Harvia Spirit SP90E requires a compatible Harvia Xenio control unit for operation. The control unit is sold separately and must be specified at the time of purchase.
What size sauna room is the SP90E designed for?
The SP90E is rated for sauna rooms up to 600 cubic feet. If your room is larger or has significant glass area, high ceilings, or uninsulated walls, contact us to confirm the right heater size before ordering.
Is the SP90E UL listed?
Yes. The Harvia Spirit SP90E is listed to UL 875 standards for electric sauna heaters, supporting compliant permitted installations in the United States and Canada.
Can I control the SP90E remotely?
Yes, when paired with the Harvia Xenio WiFi control option. The Xenio WiFi system supports remote temperature adjustment, timer programming, and monitoring from a connected device.
Are sauna stones included?
No. Four boxes of rounded sauna stones (Ø5–10 cm) are required and must be purchased separately. Stones must be loaded according to the manufacturer's instructions before first use.
What electrical connection does the SP90E require?
The SP90E operates on 240V AC, 1-phase, 60Hz with a total amperage draw of 33.3A. An AWG8 supply cable is required. A licensed electrician must perform the installation in compliance with local electrical codes.
Is an LED lighting option available?
Yes. An optional LED lighting system is available separately and can be integrated with the Spirit SP90E to add ambient lighting to your sauna room.
The Harvia Spirit SP90E is a reliable, well-specified electric sauna heater for larger rooms where standard-output units are not sufficient. If you have questions about room sizing, control unit compatibility, electrical requirements, or stone selection, contact us before ordering — we're here to help you get the right configuration from the start.
Sauna use is a personal wellness practice. Consult a qualified healthcare provider before use if you have any medical conditions, are pregnant, or are taking medications that may be affected by heat exposure.