Harvia Legend 300 DUO for Home Spa Premium Sauna Heater
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Harvia | Traditional sauna heat with fireplace ambiance
Harvia Legend 300 DUO Wood-Burning Sauna Heater
The Harvia Legend 300 DUO combines traditional wood-fired sauna heating with the atmosphere of a visible fire in an adjoining space. Its through-wall firebox allows firewood loading from another room or outside the building, keeping fuel handling out of your sauna.
With 23.5 kW output and a substantial 260 kg stone capacity, the Legend 300 DUO is designed for sauna rooms measuring approximately 529 to 1,059 ft³ (15 to 30 m³). The open black steel frame creates a distinctive focal point for your sauna interior.
Key Features
Heat for Larger Saunas
A 23.5 kW wood-burning stove for sauna rooms within the recommended 15 to 30 m³ volume range.
External Firewood Loading
Feed the fire from an adjoining room or exterior loading area through a properly designed wall opening.
A Generous Stone Bed
Up to 260 kg of stones stores heat and provides a large surface for producing traditional löyly.
Controlled Combustion
The grate design directs combustion air to different parts of the fire chamber to support efficient burning.
Distinctive Legend Design
An open black steel frame showcases the stones, while the glass firebox door brings fireplace ambiance to the loading side.
Adjustable Placement
Adjustable legs and a reversible door opening direction help accommodate your installation layout.
Technical Specifications
| Model | Legend 300 DUO |
|---|---|
| Harvia Item Number | WK300LDLUX |
| Power Output | 23.5 kW, wood-burning |
| Recommended Sauna Volume | Approximately 529 to 1,059 ft³ / 15 to 30 m³ |
| Maximum Stone Capacity | 260 kg / approximately 573 lb |
| Recommended Stone Size | 10 to 15 cm / approximately 4 to 6 inches |
| Dimensions (W × D × H) | 600 × 780 × 1,040 mm Approximately 23.6″ × 30.7″ × 40.9″ |
| Heater Weight | 97.5 kg / approximately 215 lb, without stones |
| Weight with Full Stone Load | Approximately 357.5 kg / 788 lb, excluding chimney and installation accessories |
| Construction | Steel frame and stove body; glass firebox door; adjustable legs |
| Firewood Loading | Through-wall loading from another room or outside the building |
| Flue Connection | Top connection; 115 mm diameter |
| Origin | Made in Finland |
| Warranty | Harvia limited warranty. Review applicable model, usage, and installation terms in the warranty document. |
Specifications shown are for the standard WK300LDLUX. The WK300LDLUXT is a separate telescopic version; confirm the exact model and wall-opening requirements before ordering.
Why Choose the Legend 300 DUO?
Enjoy wood-fired sauna heat while tending the fire from a separate space. The DUO layout keeps firewood handling outside the sauna and adds a welcoming view of the fire on the loading side.
Its substantial stone mass retains heat between fuel additions, making it an appealing choice for spacious home sauna projects.
Perfect For
- Home sauna rooms measuring approximately 15 to 30 m³
- Layouts with an adjoining changing room or lounge
- Cabins and luxury home sauna projects
- Owners who prefer external firewood loading
- Sauna designs that combine traditional steam with fireplace ambiance
Plan Your DUO Installation
- Confirm the wall opening: Use the instructions for your exact DUO version when planning the firebox passage and loading area.
- Check floor support: Account for the heater, full stone load, and chimney components.
- Plan the chimney: Match the 115 mm top flue connection with approved components and the required clearances.
- Review sauna sizing: Account for uninsulated surfaces and room construction when selecting your heater.
- Confirm stone supply: Order the correct stone type, size, and total weight for the required load.
- Arrange professional guidance: Have your installer verify wall construction, fire protection, ventilation, and local requirements.
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Product Manuals and Warranty
Review the technical data and installation requirements as you plan your sauna project.
Bring Traditional Heat to Your Sauna
Ready to order your Harvia Legend 300 DUO? Our sauna specialists can help with model compatibility, stone selection, chimney planning, and delivery questions.
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Ordering & Product Support FAQs
Shipping & Delivery
Free standard shipping is available on eligible products and destinations. Large equipment generally ships by freight with curbside delivery unless another service is expressly included.
White-glove placement, assembly, or other upgraded services may be available for select products and locations at an additional cost. Availability, scope, and pricing must be confirmed before booking. Processing, transit, and delivery scheduling vary by product and destination.
Review our Shipping Policy, or contact us before ordering if you need placement assistance or delivery by a particular date.
Warranty
Manufacturer warranty coverage varies by brand, model, component, and intended use. Review the product’s warranty documentation for coverage periods, exclusions, and any registration requirements. Commercial use may have different terms.
For warranty assistance, contact My Luxury Home Spa with your order number, model, serial number, and a description of the issue. We can help coordinate the next steps with the manufacturer or supplier.
Returns
Return eligibility, deadlines, fees, and shipping responsibilities vary by product. Some products have shorter return windows or specific restrictions. Eligible change-of-mind returns generally require unused equipment in its original packaging and written authorization before shipment.
Review our Return & Refund Policy and any product-specific terms before purchasing. Contact us promptly about damaged, defective, or incorrect items; these are reviewed separately from change-of-mind returns.
Installation & Power
Electrical, assembly, foundation, ventilation, drainage, and clearance requirements vary by product. Check the exact model’s specifications and manufacturer instructions before ordering or preparing your space.
Use qualified professionals where required. Delivery or optional placement service does not include electrical wiring, plumbing, site preparation, or full installation unless expressly included in your written service scope. Contact us if you need help locating the appropriate product documentation.
