Description
Product Overview
The Harvia Club KG12G-U3W 12kW Sauna Heater is a commercial-grade, floor-standing electric sauna heater engineered for high-demand environments and large residential saunas. Manufactured in Finland by Harvia, this heater delivers powerful, even heat across sauna rooms ranging from 494 to 742 cubic feet. Built entirely from stainless steel with industrial-grade heating elements, the KG12G is designed for continuous use in gyms, spas, wellness centers, hotels, and premium home installations where reliability and performance are essential.
Key Features
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12.5kW high-output performance for large sauna rooms
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Commercial-grade floor-standing design for continuous operation
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All-stainless steel construction for durability and corrosion resistance
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Industrial-grade stainless steel heating elements for extended service life
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Large 135 lb stone capacity for smooth, consistent heat distribution
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Compatible with digital or mechanical controls (sold separately)
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UL Listed for commercial safety compliance
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Designed and manufactured in Finland
Specifications
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Model: Harvia Club KG12G-U3W (K125G-U3-NC)
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Heater Type: Floor-Standing Commercial Electric Sauna Heater
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Power Output: 12.5 kW (12,300 watts)
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Recommended Sauna Size: 494 – 742 cu. ft.
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Voltage: 208V
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Phase: 3-Phase
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Amperage: 34.1 Amps
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Main Breaker: 40 Amps
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Wiring (Heater to Power Unit): (3) #8 + Neutral + Ground
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Control Wiring: (2) #14 + Ground
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Stone Capacity: 135 lbs (stones sold separately)
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Dimensions (W × D × H): 19 7/8″ × 17″ × 27 1/2″
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Heater Weight: 60 lbs
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Construction: Full Stainless Steel Housing & Heating Elements
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Certifications: UL Listed
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Country of Origin: Finland
Why Choose the Harvia Club KG12G-U3W?
The KG12G-U3W is purpose-built for commercial and high-capacity sauna applications where performance, durability, and safety are non-negotiable. Its large stone capacity ensures steady heat retention and gentle steam, while compatibility with Harvia’s Xenio digital controls or mechanical systems allows full customization. Trusted worldwide in professional wellness facilities, this heater delivers authentic Finnish sauna performance day after day.
What's Included
Controls, contactor/power unit, and sauna stones sold separately.
Warranty & Support
