Harvia Legend 300 DUO for home spa sauna heater with firewood burning stove and stone holder
Harvia Legend 300 DUO for home spa sauna heater with stone container and wood-burning fire in modern sauna room

Harvia Legend 300 DUO for Home Spa Premium Sauna Heater

Regular price$3,335.00
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Shipping calculated at checkout.

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Harvia Legend 300 DUO – 23.5 kW Wood-Burning Sauna Stove & Fireplace Combo

Dual‑Room Heater: Sauna Stove & Fireplace with Massive Stone Capacity

The Harvia Legend 300 DUO is a high-end Finnish wood-burning sauna heater that doubles as a dual-purpose fireplace, allowing heating from outside the sauna room. Floor-mounted with a large glass door and adjustable legs, it delivers authentic, long-lasting sauna heat even after the fire dims—thanks to its 572 lb (260 kg) stone capacity. Designed for sauna volumes from approximately 529 to 1,059 cu ft (~15–30 m³), the Legend 300 DUO is engineered for clean, efficient combustion and superior wellness experiences. 

Key Features

  • 23.5 kW Power Output: Robust wood-burning performance to heat large sauna spaces (529–1,059 cu ft) 
  • Dual‑Room Functionality: Acts as sauna heater and visible fireplace—ideal for adjacent changing rooms or outdoor loading 
  • Massive Stone Capacity: Holds up to 572 lb (260 kg) of sauna stones for steady, soft steam throughout every session 
  • Clean Combustion Design: Advanced grate structure separates combustion air for efficient burning and reduced emissions 
  • Heavy‑Duty Construction: Black steel frame, cast-iron door, adjustable legs, and versatile flue options (top or rear) 

Specifications

  • Model: Legend 300 DUO (WK300LDLUX / WK300LDLUXT)
  • Power Output: 23.5 kW wood-burning 
  • Recommended Room Volume: 529–1,059 cu ft (~15–30 m³) 
  • Stone Capacity: 572 lb (260 kg) required – approximately 13 boxes of 44 lb stones 
  • Firewood Max Length: Up to 18.5″ (47 cm) 
  • Dimensions (W × D × H): 23.6″ × 30.7″ × 40.9″ (600 × 780 × 1,040 mm) 
  • Weight: 214 lb (heater); Shipping with stones approx. 830 lb 
  • Construction: Heavy-duty black steel frame, 6 mm fire chamber, cast-iron door 
  • Fuel Type: Wood
  • Installation: Floor-mount with adjustable legs, rear or top flue options 
  • Certifications: CE-certified, EAC listed 
  • Warranty: 2-year limited (consumer use)

Why Choose the Legend 300 DUO?

The Legend 300 DUO delivers unmatched versatility by offering dual-room heating and premium sauna ambiance. With its massive stone reservoir, it ensures softer, more balanced steam—even after the fire subsides. Its clean-burning design, cast‑iron door with adjustable orientation, and industrial aesthetics make it a standout choice for sauna lovers who desire both performance and visual warmth. 

Perfect For:

  • Large sauna rooms (~15–30 m³ / 529–1,059 cu ft)
  • Installations requiring outside loading or twin-room heat
  • Homeowners who want high-capacity steam and clean heating performance
  • Design-conscious users who appreciate visible fire and handcrafted Finnish design

Why Buy From MyLuxuryHomeSpa.com?

  • Authorized Harvia dealer—full manufacturer warranty support
  • Free freight shipping and scheduled delivery coordination
  • Price-match guarantee—just ask if you find it lower elsewhere
  • Expert support for installation planning, stone selection, and layout advice

Need Help?

Have questions about feeding orientation, stone setup, clearance planning, or flue configuration? Our sauna experts are ready to help—reach out anytime!

Technical Data Sheet

Installation and Operation Manual

Warranty

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