Harvia Club KG10G-U3 10kW Commercial Sauna Heater

Power your sauna with the exceptional performance of the Harvia Club KG10G-U3 10kW Commercial Sauna Heater—a professional-grade electric heater engineered in Finland for demanding commercial environments and luxury residential installations. Built to operate continuously in health clubs, spas, hotels, athletic facilities, and premium home saunas, the Club Series delivers the legendary reliability and authentic Finnish sauna experience that Harvia has been known for worldwide for more than 70 years.

Constructed from heavy-duty stainless steel and designed for daily operation, the KG10G-U3 produces consistent, evenly distributed heat while its generous 135-pound stone capacity creates soft, long-lasting warmth and rich, satisfying löyly (steam) every time water is poured over the sauna stones.

Ideal for sauna rooms between 388 and 600 cubic feet, this powerful 10kW floor-standing heater provides rapid heat-up times, dependable temperature control, and years of reliable performance, making it an excellent choice for both commercial facilities and high-end residential wellness spaces.

Please Note: This heater requires a compatible Harvia control system and power unit/contactor, both sold separately.

Why You'll Love It

• Powerful 10kW commercial-grade performance

• Designed for sauna rooms 388–600 cubic feet

• Premium stainless steel construction for exceptional durability

• Large 135 lb. stone capacity for softer, longer-lasting heat

• Produces abundant, authentic Finnish steam (löyly)

• Fast heat-up with outstanding temperature consistency

• Floor-standing design built for continuous commercial operation

• Compatible with Harvia Xenio digital and mechanical controls (sold separately)

• UL Listed for safety and commercial applications

• Designed and manufactured in Finland

Commercial Performance You Can Depend On

The Harvia Club Series was engineered for facilities where sauna heaters are expected to perform all day, every day. Whether serving guests at a luxury spa or supporting daily recovery in a professional athletic facility, the KG10G-U3 delivers dependable heat with remarkable efficiency.

Its industrial-grade heating elements and stainless steel housing are designed to withstand years of continuous operation while maintaining consistent temperatures throughout the sauna room. The result is reliable performance with minimal maintenance, even in demanding commercial settings.

Large Stone Capacity for a Better Sauna Experience

One of the defining features of the Harvia Club KG10G-U3 is its impressive 135-pound sauna stone capacity (stones sold separately).

A larger stone mass provides several important advantages:

• More consistent sauna temperatures

• Longer heat retention

• Softer, more comfortable radiant heat

• Richer steam production when water is added

• Reduced temperature fluctuations during use

Instead of harsh, dry heat, you'll enjoy the smooth, gentle warmth and abundant steam that define a traditional Finnish sauna experience.

Flexible Professional Controls

Customize your sauna with Harvia's professional control options (sold separately), allowing you to tailor operation to your specific installation.

Compatible controls include:

• Harvia Xenio CX30 Digital Control

• Harvia F-2T Mechanical Control

• Harvia FX503 Power Unit / Contactor

These control systems provide flexible installation options for both commercial facilities and luxury residential saunas.

Technical Specifications

What's Included

• Harvia Club KG10G-U3-NC 10kW Sauna Heater

• Installation & Mounting Hardware

• Installation & User Manual

• UL Certification Label

Sold Separately

• 135 lbs. Sauna Stones

• Harvia Control System

• Harvia Power Unit / Contactor

Installation Requirements

The Harvia KG10G-U3 operates on 208V, 3-phase electrical service and must be connected to an approved Harvia control system and power unit. Because of its commercial-grade electrical requirements, installation should always be completed by a licensed electrician in accordance with local electrical codes.

Professional installation ensures safe operation, proper performance, and long-term reliability.

Built for Decades of Authentic Finnish Sauna Enjoyment

When only commercial-grade performance will do, the Harvia Club KG10G-U3 stands in a class of its own. Combining powerful 10kW heating capacity, premium stainless steel construction, and the ability to produce the soft, luxurious steam that traditional Finnish saunas are famous for, this heater is built to deliver exceptional performance day after day.

Whether you're outfitting a luxury spa, fitness center, wellness retreat, or an expansive home sauna, the Harvia Club KG10G-U3 offers the reliability, efficiency, and craftsmanship trusted by sauna professionals around the world.

Sauna Heater Sizing Tool

Installation Manual

Click Here to Download Manual