Harvia Electric Sauna Heater K15G Club | 15kW | 208V 3-Phase Floor-Mounted

High-Output Floor-Standing Sauna Heater for Rooms 600–989 cu ft | Stainless Steel | Made in Finland

The Harvia K15G Club is a 15kW floor-mounted electric sauna heater built for large residential and commercial sauna rooms from 600 to 989 cubic feet. Harvia’s decades of experience designing and manufacturing sauna heaters is reflected in every detail — stainless steel interior and exterior construction, a large stone compartment with direct element-to-stone contact, and multi-layer construction for cooler exterior surface temperatures and greater safety.

This listing is configured for 208V 3-phase electrical service — common in commercial buildings and some newer homes. If you need the single-phase version, see the Harvia K15G Club 240V 1-Phase. An external control unit and sauna stones are required for operation and are sold separately.

Who This Is For

The K15G Club 208V 3-phase is ideal for commercial sauna installations, health clubs, day spas, and large home sauna rooms with 3-phase electrical service. At 15kW it’s the highest-output model in the Harvia Club Series and a trusted choice for powering saunas in demanding environments. The 3-phase configuration draws 40A vs. 61.7A (2 circuits) for the 1-phase version — a meaningful advantage in commercial settings.

Key Features

• 15kW floor-mounted electric output — designed for sauna rooms 600–989 cu ft
• Deluxe stainless steel interior and exterior construction
• Multi-layer construction for cooler surface temperature and greater safety
• Large stone compartment — 132 lbs minimum; stones make direct contact with heating elements
• Generates intense, penetrating heat quickly and efficiently
• Compatible with select Harvia Xenio and Fenix external controls (sold separately)
• Optional 24-hour time clock
• UL tested and listed; ETL certified — meets U.S. safety standards
• Designed, engineered, and manufactured in Finland

Specifications

• Model: Club K15G
• SKU: HRKGU15CU3UL
• Series: Harvia Club Series
• Power Output: 15kW
• Voltage: 208V, 3-Phase
• Amperage: 40A
• Room Size: 600–989 cu ft
• Stone Capacity: 132 lbs minimum (3 boxes)
• Width: 19-7/8” (505 mm)
• Depth: 16.9” (429 mm)
• Height: 27.6” (701 mm)
• Heater Weight: 60 lbs
• Shipping Weight (with stones): 192 lbs
• Safety Listing: UL Tested & ETL Certified
• Country of Origin: Finland

Required Components Sold Separately

• Sauna Control (required — choose one):
  • Harvia Xenio Series Digital Control w/WiFi (up to 17kW)
  • Harvia Digital Control w/WiFi — Club, Spirit, Cilindro, Virta & Virta Pro Series
• Sauna Stones (required): 132 lbs minimum (3 boxes) — Harvia AC3000 Split-Face Sauna Stones 5–10cm recommended. Natural stones vary in shape and size; an additional box is recommended to allow selection of the highest quality stones for fit, form, and function.
• Electrical Service (required): 208V / 3-phase / 40A — consult a licensed electrician

What’s Included

• Harvia K15G Club 15kW Sauna Heater
• Installation and Operation Manual
• Warranty documentation

Shipping & Delivery

This product ships free via freight to the contiguous United States. Shipping weight with stones is 192 lbs. Please inspect your shipment upon arrival and note any visible damage before signing.

Installation Notes

• Requires a dedicated 208V / 3-phase / 40A circuit — consult a licensed electrician
• An external Harvia control system is required and must be installed separately
• Sauna stones must be loaded before first use — minimum 132 lbs required for warranty to remain valid
• Electrical connection must match heater and control specifications
• Follow all manufacturer safety clearances and local code requirements
• Review all installation documents before purchase and installation
• Professional installation strongly recommended

Warranty

The Harvia K15G Club includes a 1-year limited manufacturer warranty for both residential and commercial use. Proper stone maintenance is required for the warranty to remain valid — see the manufacturer’s stone requirements guide. As an authorized Harvia retailer, Prime Regeneration ensures full warranty coverage is passed through to you at the time of purchase. View Full Warranty Document.

Manuals & Documentation

• Installation & Operation Manual
• Technical Data Sheet (K15G 3PH)
• Element Requirements
• Stone Requirements Guide
• Harvia Sauna Stones Update

Complete Your Sauna Setup

• Harvia Xenio Digital Control w/WiFi (up to 17kW) — required
• Harvia Digital Control w/WiFi — Club Series — required (alternative)
• Harvia AC3000 Split-Face Sauna Stones — 3 boxes required (132 lbs min)
• Harvia K15G Club 240V 1-Phase — need single-phase instead?
• Shop All Sauna Heaters

FAQ

What is the difference between the 208V 3-phase and 240V 1-phase versions?
Both deliver 15kW of output for rooms 600–989 cu ft. The 208V 3-phase version (this listing) draws 40A and is common in commercial buildings and some newer homes. The 240V 1-phase version draws 61.7A across two circuits and is the standard residential configuration. Consult a licensed electrician to confirm which is appropriate for your installation.

What size sauna room does the K15G support?
The K15G Club is rated for sauna rooms from 600 to 989 cubic feet. Use the Harvia Sizing Guide to confirm the right heater for your room.

Which control is compatible with the K15G?
The K15G Club is compatible with the Harvia Xenio Series Digital Control w/WiFi (up to 17kW) and the Harvia Digital Control w/WiFi for Club Series. An external control is required for operation.

How many sauna stones does it require?
A minimum of 132 lbs (3 boxes) of sauna stones are required and sold separately. Natural stones vary in shape and size — an additional box is recommended to allow selection of the best stones for fit and function. Proper stone maintenance is required for the warranty to remain valid.

Does this ship for free?
Yes — free freight shipping is included to the contiguous United States.

Are financing options available?
Yes — financing options are available at checkout. Contact us for details.