Harvia Club KG12G-U3W 12KW Sauna Heater

The Harvia Club K125G-U3-NC 12.5KW Sauna Heater is a heavy-duty electric sauna heater designed for large sauna rooms and demanding commercial environments. Built for spas, gyms, wellness centers, hotels, health clubs, and large private sauna installations, this floor-standing heater delivers reliable performance for sauna rooms from 494 to 742 cubic feet.

Constructed in Finland with a durable stainless steel body and industrial-grade heating elements, the Harvia Club series is built for frequent use and long-term reliability. Its large stone capacity supports steady heat retention and smooth steam production, making it a strong choice for high-use sauna environments.

Key Features

• 12.5KW heating capacity for sauna rooms from 494 to 742 cubic feet

• Designed for commercial and high-capacity sauna installations

• Floor-standing stainless steel construction

• Industrial-grade stainless steel heating elements

• Holds up to 135 lbs of sauna stones

• Compatible with Harvia Xenio CX45 digital controls

• Compatible with mechanical control configurations using F-2T and FX503 components

• UL Listed for safety compliance

• Designed and manufactured in Finland

Technical Information

The Harvia Club K125G-U3-NC is engineered for sauna rooms that require reliable, high-output electric heating and durable commercial-grade construction. Its all-stainless steel housing helps support long-term performance in high-heat environments, while the large stone capacity provides strong heat retention and consistent steam when water is applied to the stones.

This model operates on a 208V three-phase electrical connection and requires a compatible control system and contactor or power unit for operation. Sauna stones and controls are sold separately.

Electrical Requirements

• Power Output: 12,300 Watts / 12.5KW

• Voltage / Phase: 208V / 3-phase

• Amperage: 34.1A

• Main Breaker Size: 40A

• Wiring from Heater to Power Unit: (3) #8 + Neutral + Ground

• Control Wiring: (2) #14 + Ground

Control Compatibility

• Compatible Digital Control: Harvia Xenio CX45

• Compatible Mechanical Control Components: F-2T and FX503

• Requires appropriate contactor or power unit for operation

What's Included

• Harvia Club K125G-U3-NC 12.5KW Electric Sauna Heater

• Mounting Hardware

• Installation and User Manual

• UL Certification Label

Important Notes

• Sauna stones required for operation and sold separately

• Requires up to 135 lbs of sauna stones

• Compatible control system required and sold separately

• Contactor or power unit required for operation

• 208V three-phase electrical connection required

• Professional commercial installation recommended

Specifications

Installation Manual

Click Here to Download Manual

Sauna Heater Sizing Tool