Harvia Virta HL11U3 10.5kW 208V 3-Phase Electric Sauna Heater, Black | HL11U3

Strong, Reliable Heat Designed for Frequent Sauna Use

The Harvia Virta HL11U3 10.5 kW Electric Sauna Heater is a powerful floor-mounted heater designed for larger sauna rooms and spaces where dependable, consistent heating matters. Operating on 208V 3-phase electrical service, this model is particularly well suited to compatible commercial, hospitality, fitness, multifamily, wellness, and other frequent-use sauna environments.

Virta is built around long-term practicality. Its strong construction and generous stone capacity create steady, enveloping heat and satisfying traditional löyly, while the heater’s service-friendly design helps simplify maintenance over time. The heating elements are separated from the stones, and the front maintenance hatch provides easier access to internal components when service is needed.

Unlike a Virta Combi, the HL11U3 is a traditional electric sauna heater without an integrated steamer. Choose this model when you want classic Finnish sauna heat and löyly created by pouring water over properly heated sauna stones.

Choosing This Heater Is Simple

Start by confirming that the 10.5 kW output is appropriate for your sauna room size and construction. Then confirm that the property has 208V 3-phase electrical service.

This heater requires a separate compatible control system. For this 10.5 kW, 208V 3-phase configuration, compatible Harvia control options include:

Harvia Xenio CX30-U3
A streamlined digital touch-control solution for traditional electric sauna operation. Harvia rates the 208V 3-phase CX30 configuration for heaters up to 10.5 kW. 

Harvia Fenix FX30-U1-U3-XC
Harvia’s newer smart-control option with a 4.3-inch touchscreen interface, WiFi connectivity, and MyHarvia support. The Fenix FX30 supports electric sauna heaters up to 10.5 kW at 208V 3-phase. 

In simple terms: choose the Virta HL11U3 when your sauna needs approximately 10.5 kW of heating capacity, your property provides compatible 208V 3-phase power, and you want traditional electric sauna heat with a separately mounted digital or smart control.

Key Highlights

• Harvia Virta floor-mounted electric sauna heater
• 10.5 kW heating output
• 208V, 3-phase electrical configuration
• Designed for traditional Finnish sauna heat and löyly
• Strong construction suited to regular and demanding sauna use
• Service-friendly front maintenance access
• Heating elements separated from the sauna stones
• Requires a compatible separate sauna control
• Compatible control path: Harvia Xenio CX30-U3
• Smart-control path: Harvia Fenix FX30-U1-U3-XC
• Ideal for appropriately sized residential, commercial, hospitality, fitness, wellness, and shared-use sauna environments

User Manual