Harvia Club KG12G-U3W 12KW Sauna Heater - Finnish Sauna Builders
Harvia Club KG12G-U3W 12KW Sauna Heater
The Harvia K125G-U3-NC Club Series 12.5kW Electric Sauna Heater is a high-performance commercial sauna heater engineered for reliability, efficiency, and longevity. Designed for both large home saunas and high-traffic commercial environments like gyms, wellness centers, and spas, this floor-standing unit delivers even, consistent heat across spaces ranging from 494 to 742 cubic feet. Constructed entirely from stainless steel and built in Finland, this heater represents the pinnacle of authentic Finnish sauna engineering. It operates on 208V 3-phase power and requires a compatible control system and contactor/power unit (sold separately).
Features
- Model: K125G-U3-NC (208V / 3-Phase)
- Power Output: 12.5 kW (12,300 watts)
- Sauna Room Size: Ideal for 494 – 742 cubic feet
- Design: Floor-standing stainless steel body
- Heating Elements: Industrial-grade stainless steel for long life
- Stone Capacity: 135 lbs (4 boxes, sold separately)
- Control Options: Compatible with Xenio CX45 (Digital) or F-2T & FX503 (Mechanical)
- UL Listed: Certified for commercial safety and reliability
- Country of Origin: Made in Finland
Technical
The Harvia K125G-U3-NC is engineered for demanding commercial applications where durability and performance are critical. This heater features a full stainless steel construction, ensuring resistance to corrosion and heat-related wear. It has a power output of 12.5 kW and is designed for 208V 3-phase electrical systems. The large 135 lb stone capacity provides exceptional heat retention and even distribution, enhancing the overall sauna experience. Required control systems are sold separately, allowing you to tailor the configuration with either digital or mechanical operation. As a UL-listed heater manufactured in Finland, it meets stringent international safety and quality standards.
Specifications
| Model | Harvia Club K125G-U3-NC |
|---|---|
| Power Output | 12.5 kW (12,300 watts) |
| Sauna Room Size | 494 – 742 cu. ft. |
| Voltage / Phase | 208V / 3-Phase |
| Amperage | 34.1 Amps |
| Main Breaker | 40 Amps |
| Wiring (Heater to Power Unit) | (3) #8 + Neutral + Ground |
| Control Wiring | (2) #14 + Ground |
| Heater Dimensions (W x D x H) | 19 7/8″ x 17″ x 27 1/2″ |
| Stone Capacity | 135 lbs (Stones sold separately) |
| Construction | All Stainless Steel Housing & Heating Elements |
| Certifications | UL Listed |
| Country of Origin | Made in Finland |
| Heater Weight | 60 lbs |
| Shipping Weight with Stones | 192 lbs |
In the Box
- Harvia K125G-U3-NC Electric Sauna Heater (12.5kW)
- Mounting Hardware
- Installation & User Manual
- UL Certification Label
- Note: Controls and sauna stones are sold separately
Installation Manual
Shipping
We promise to do our best to get your order to you as soon as possible. We provide estimated shipping times on the product pages. All orders are dispatched within 1-2 business days and delivered within 5-7 business days.
Order delays have proven to be unavoidable and outside of our control. While this might be frustrating, we ask you to please be patient and understanding with us in these tough times. We thank you for your business and appreciate your patience.
Please see our Returns and Refunds Policy for more details.
Returns & Refunds
If you need to exchange your product, you may do so. You, as the customer, are responsible for any shipping costs throughout any returns and exchange processes.
Due to drastically increasing LTL/freight shipping costs, any outright returns will incur a 25% cancellation fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product.
Frequently asked questions
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Call us for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from reputable manufacturers or authorized distributors.