Harvia Club KG12G-U3W 12KW Sauna Heater without Contactor(494-742cf)

Harvia K12.5G-U3-NC Club Series 12.5kW Electric Sauna Heater – Durable Heat for Large Sauna Rooms

The Harvia K12.5G-U3-NC is a high-performance, commercial-grade electric sauna heater from Harvia’s renowned Club Series. Designed for continuous, demanding use, this heater is ideal for large home saunas or commercial environments such as gyms, wellness centers, and spas. Built entirely from stainless steel, it ensures long-lasting durability and easy maintenance, while delivering powerful and consistent heating.

This 12.5kW floor-standing heater is designed for 208V 3-phase power and covers sauna spaces between 494 and 742 cubic feet. The K12.5G-U3-NC requires a separate contactor/power unit and works with either digital or mechanical control systems (sold separately), including Harvia’s Xenio CX45 control.

Key Features:

• Model: K12.5G-U3-NC (208V / 3-phase)

• Power Output: 12,300 watts (12.5 kW)

• Sauna Room Size: 494 – 742 cubic feet

• Construction: Full stainless steel housing and elements

• Dimensions: 19 7/8″ W x 17″ D x 27 1/2″ H

• Installation: Floor-standing design

• Stone Capacity: 135 lbs (4 boxes, sold separately)

• Controls (sold separately):

  • Digital: Xenio CX45

  • Mechanical: F-2T & FX503

• UL Listed for safety and performance

• Made in Finland – authentic quality from the sauna capital of the world

Electrical & Wiring Specifications:

• Voltage / Phase: 208V / 3-phase

• Amps Drawn: 34.1A

• Main Breaker: 40A

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

• Control Wiring: (2) #14 + Ground

Shipping Details:

• Heater Shipping Weight: 60 lbs

• Stones Shipping Weight: 135 lbs

Why Choose the Harvia K12.5G-U3-NC?

• Built to meet the needs of high-traffic saunas

• Corrosion-resistant stainless steel body for longevity

• Fast, even heating performance for large spaces

• Reliable, low-maintenance construction trusted worldwide

Enhance your commercial or large-scale sauna experience with the Harvia K12.5G-U3-NC — a reliable, high-output sauna heater built to keep up with professional demands while providing soothing, authentic Finnish heat.