The Harvia Virta HL110 is a 10.5 kW floor-standing electric sauna heater built for mid-to-large residential sauna rooms and light commercial environments. Its stainless steel exterior, service-friendly heating element tray, and 100 lb stone capacity make it a practical, high-output choice for sauna rooms between 388 and 636 cubic feet. Engineered and manufactured in Finland, the HL110 is UL Listed and designed for consistent, long-term performance.
Why Customers Choose This Heater
- 10.5 kW output suited for mid-to-large sauna rooms up to 636 cubic feet
- Stainless steel construction for durability in high-humidity environments
- Removable heating element tray for straightforward servicing and maintenance
- Compatible with a range of external digital and mechanical control units
- UL Listed for safe residential and light commercial use
- Made in Finland by Harvia, a leading sauna equipment manufacturer
Product Highlights
High-Output Electric Heating
At 10.5 kW, the HL110 delivers consistent, efficient heat for sauna rooms ranging from 388 to 636 cubic feet, supporting reliable temperature control throughout each session.
Service-Friendly Design
The removable heating element tray allows for fast, accessible maintenance without requiring full disassembly of the heater — a practical advantage for long-term ownership.
Stainless Steel Construction
The heater body is fabricated from stainless steel, providing resistance to the moisture and heat of the sauna environment and supporting an extended service life.
100 lb Stone Capacity
The HL110 accommodates up to 100 lbs of sauna stones, enabling consistent heat retention and soft steam generation during use. Stones are sold separately.
External Control Compatible
The HL110 requires an external control unit for operation and is compatible with a range of Harvia digital and mechanical controllers, giving flexibility in how the heater is managed.
Dual Voltage Configurations
Available in 240V / 1-phase and 208V / 3-phase to accommodate different residential and light commercial electrical setups.
Specifications
| Model | Harvia Virta HL110 |
| Power Output | 10.5 kW |
| Voltage / Phase Options | 240V / 1-phase (HL110-U1) | 208V / 3-phase (HL110-U3) |
| Recommended Room Volume | 388–636 cubic feet |
| Stone Capacity | 100 lbs (stones sold separately) |
| Dimensions | 17" W × 17" D × 33" H (432 × 432 × 838 mm) |
| Heater Weight | 40 lbs (excluding stones) |
| Body Material | Stainless steel |
| Installation Type | Floor-standing |
| Control Type | External digital or mechanical controller required (sold separately) |
| Country of Manufacture | Finland |
| Certifications | UL Listed |
What's in the Box
- Harvia Virta HL110 10.5 kW Electric Sauna Heater
- Removable heating element tray
- Installation and user manual
- Mounting and wiring hardware
Ideal For
- Mid-to-large residential sauna rooms (388–636 cubic feet)
- Light commercial sauna installations requiring a reliable, high-output heater
- Homeowners upgrading from a lower-capacity electric heater
- Installations where ease of maintenance is a priority
- New sauna builds requiring a floor-standing electric heater with external control compatibility
Important Information
- Professional installation required. This heater must be installed by a licensed electrician in accordance with all applicable local electrical codes and the manufacturer's installation manual.
- External control unit required. The HL110 does not operate without a compatible external controller. Digital and mechanical options are available and sold separately.
- Sauna stones sold separately. Stones are not included with the heater.
- Minimum clearances must be observed. Follow all clearance-to-combustibles requirements specified in the installation manual before installation.
- UL Listed for residential and light commercial use in the United States and Canada.
- Always refer to the manufacturer's installation manual for complete safety, wiring, and clearance specifications.
Frequently Asked Questions
What size sauna room is the HL110 designed for?
The Harvia Virta HL110 is rated for sauna rooms between 388 and 636 cubic feet. For rooms outside this range, a different heater model may be more appropriate.
Does the HL110 come with sauna stones?
No. Sauna stones are sold separately. Harvia recommends using stones specifically rated for sauna use.
Does the HL110 require an external control unit?
Yes. The HL110 requires a compatible external control unit for operation. It is compatible with a range of Harvia digital and mechanical controllers, which are sold separately.
What electrical configurations are available?
The HL110 is available in two configurations: 240V / 1-phase (model HL110-U1) and 208V / 3-phase (model HL110-U3). Select the configuration that matches your available electrical service.
Is professional installation required?
Yes. Installation must be performed by a licensed electrician in compliance with all applicable local codes and the Harvia installation manual. Improper installation may void the warranty and create safety hazards.
How easy is it to service the HL110?
The HL110 features a removable heating element tray that allows for fast, accessible servicing without requiring full disassembly of the unit.
Where is the Harvia Virta HL110 manufactured?
The HL110 is designed and manufactured in Finland by Harvia, one of the world's leading sauna equipment manufacturers.
Is the HL110 UL Listed?
Yes. The Harvia Virta HL110 is UL Listed for residential and light commercial use in the United States and Canada.
The Harvia Virta HL110 is a well-built, high-output electric sauna heater suited for homeowners and light commercial operators who need reliable performance and straightforward maintenance. If you have questions about compatibility with your sauna room or electrical setup, contact us — we're here to help you find the right configuration.
Sauna use is a personal wellness practice. Individual experiences vary. Consult a qualified healthcare provider before use if you have any medical conditions or concerns.