The Harvia Legend 300 DUO is a premium Finnish wood-burning sauna heater that doubles as a dual-purpose fireplace. Designed for outside firewood loading, it keeps your sauna clean while providing cozy fireplace ambiance in an adjacent room. With its enormous 572 lb stone capacity, this heater ensures long-lasting heat and soft, enveloping steam—even after the fire subsides. Ideal for sauna volumes from 529 to 1,059 cu. ft (~15–30 m³), the Legend 300 DUO combines performance, durability, and visual appeal.
Key Features
- 23.5 kW Power Output: Heats large sauna rooms from 529–1,059 cu. ft (~15–30 m³)
- Dual-Room Functionality: Acts as both sauna heater and fireplace—perfect for changing rooms or outside fire loading
- Massive Stone Bed: Holds up to 572 lbs (260 kg) of sauna stones for steady, balanced steam
- Efficient Combustion: Grate structure optimizes airflow for cleaner, more efficient burning
- Heavy-Duty Build: Black steel frame, 6 mm fire chamber, cast-iron door, and adjustable legs
- Flexible Installation: Rear or top flue connection for versatile setups
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 lbs (260 kg) ≈ 13 boxes of 44 lb stones |
| Firewood Max Length | 18.5″ (47 cm) |
| Dimensions (W × D × H) | 23.6″ × 30.7″ × 40.9″ (600 × 780 × 1,040 mm) |
| Weight | 214 lbs (heater); ~830 lbs with stones |
| Construction | Black steel frame, cast-iron door, adjustable legs |
| Flue Options | Rear or top connection (115 mm) |
| Certifications | CE-certified, EAC listed |
| Warranty | 2-Year Limited (consumer use) |
Why Choose the Harvia Legend 300 DUO?
This model offers the best of both worlds—a powerful sauna heater with a through-wall firebox that doubles as a fireplace. The massive stone bed guarantees luxurious steam and heat retention, while the cast-iron door creates warm ambiance in the adjoining space. Built tough with a clean-burning design, the Legend 300 DUO is perfect for homeowners seeking a premium, versatile sauna stove.
Perfect For
- Large sauna rooms (529–1,059 cu. ft)
- Installations needing through-wall or external fire loading
- Cabins, luxury home saunas, and wellness retreats
- Users who want both a sauna heater and fireplace experience
Why Buy From MyLuxuryHomeSpa.com?
- Authorized Harvia dealer – full manufacturer warranty
- Free freight shipping with coordinated delivery
- Price-match guarantee for the best value
- Expert support on installation, stone requirements, and flue planning
Order your Harvia Legend 300 DUO today and enjoy the ultimate combination of sauna performance and fireplace ambiance in one elegant unit.
Shipping & Delivery
Do you ship to the USA? Yes, we provide shipping to the contiguous United States. Shipping costs and estimated delivery times are calculated at checkout based on the weight and dimensions of your order.
Are there import duties or taxes? Transparency Disclosure: Because your order ships from the DE, it may be subject to US import duties or customs fees. These fees are the responsibility of us.
How long is the "Handling Time"? Our standard handling time is 1–2 business days. This is the time it takes to process your order before it leaves our facility.
What is the "Transit Time"? Transit time to the USA typically takes 3–5 business days via our international carriers. You will receive a tracking link as soon as your order is dispatched.
Returns & Refunds
What is your return window? In alignment with Google’s best practices, we offer a 30-day return policy. You have 30 days from the date of delivery to request a return.
How do I start a return? To initiate a return, please email Contact@yourspapool.com with your order number. We will provide you with the appropriate return shipping address.
What condition must the items be in? Items must be in their original packaging, unused, and in the same condition that you received them.
When will I receive my refund? Once your return is received and inspected, we will process your refund within 10 business days. The credit will automatically be applied to your original method of payment.



