The Harvia Legend 150 SL is a high-capacity wood-burning sauna stove built for medium to large traditional saunas. With a 16 kW output, external firewood feed, and a 264 lb stone capacity, it delivers consistent, enveloping heat and authentic steam — the hallmarks of a genuine Finnish sauna experience. Designed for sauna rooms from 212 to 459 cubic feet, this floor-standing stove combines durable construction with practical installation flexibility.
Why Customers Choose the Harvia Legend 150 SL
- External firewood feed keeps the sauna interior clean and undisturbed during use
- 264 lb stone capacity retains heat effectively, even during brief pauses in firing
- Cast-iron glass door adds warmth and ambiance with a visible flame
- Top or rear flue outlet options simplify installation in a variety of sauna layouts
- Adjustable legs allow level placement on uneven floors
- Backed by a 2-year manufacturer warranty
Product Highlights
External Firewood Feed (SL Model)
Load firewood from outside the sauna room, keeping the interior free of debris and maintaining a calm, uninterrupted sauna session.
High Stone Capacity
Holds up to 264 lbs of sauna stones, providing substantial thermal mass for steady, long-lasting heat and reliable steam generation.
Cast-Iron Glass Door
The fire door features durable cast iron with a glass panel, allowing the glow of the fire to contribute to the sauna atmosphere.
Modern Grate Fire Chamber
A grate-based combustion system separates airflow efficiently, supporting cleaner burning and more consistent heat output.
Flexible Flue Connection
Supports both top and rear flue outlet configurations, accommodating a range of sauna room designs and chimney placements.
Durable Steel Construction
Built with a black steel frame and a 5 mm fire chamber cover for long-term durability under high-heat conditions.
Specifications
| Model | Legend 150 SL |
|---|---|
| SKU | WK150LD |
| Fuel Type | Wood |
| Power Output | 16 kW |
| Sauna Room Size | 212–459 cubic feet |
| Stone Capacity | 264 lbs (7 boxes) |
| Dimensions (W × D × H) | 21″ × 28″ × 30″ + 7⅞″ collar |
| Weight (Heater Only) | 135 lbs |
| Shipping Weight (with Stones) | 399 lbs |
| Fire Chamber Cover Thickness | 5 mm |
| Flue Outlet Diameter | 115 mm |
| Flue Connection | Top or Rear |
| Installation Type | Floor-Standing, Adjustable Legs |
| Warranty | 2-Year Manufacturer Warranty |
In the Box
- Harvia Legend 150 SL Wood Burning Sauna Stove
- Cast-Iron Glass Fire Door
- Adjustable Legs
- Installation and User Manual
- 2-Year Warranty Documentation
Note: Sauna stones (7 boxes required) may be sold separately. Confirm inclusion at time of purchase.
Ideal For
- Medium to large home saunas (212–459 cu ft)
- Cabin and outdoor sauna installations
- Traditional Finnish-style wood-fired sauna setups
- Sauna rooms with exterior wall access for firewood loading
- Buyers seeking a high stone-capacity stove for sustained heat sessions
Important Information
- Professional installation is strongly recommended. Consult a licensed contractor familiar with wood-burning appliances and local building codes.
- A compatible chimney system is required. Refer to the chimney installation manual for specifications.
- Maintain required clearances from combustible materials as specified in the installation manual.
- Use only dry, seasoned hardwood. Do not burn treated wood, garbage, or accelerants.
- This stove is intended for sauna use only and must not be used as a primary heating appliance.
- Keep children and pets away from the stove during and after operation.
- Allow the stove to cool completely before performing any maintenance or cleaning.
- Check local regulations regarding wood-burning appliances before installation.
Frequently Asked Questions
What size sauna room is the Harvia Legend 150 SL designed for?
The Legend 150 SL is rated for sauna rooms between 212 and 459 cubic feet. For best results, calculate your room's cubic footage before purchasing to confirm compatibility.
What does the "SL" designation mean?
The "SL" indicates a side-load or external feed configuration, meaning firewood is loaded from outside the sauna room through a wall opening. This keeps the sauna interior clean and allows stoking without interrupting the session.
Are sauna stones included with the stove?
Sauna stones may or may not be included depending on the purchase configuration. The stove requires 7 boxes of sauna stones for optimal performance. Confirm stone inclusion at the time of purchase.
Can I connect the flue from the top or the back?
Yes. The Legend 150 SL supports both top and rear flue outlet connections, giving you flexibility to match your sauna room's chimney layout.
Does this stove require professional installation?
Professional installation is strongly recommended. Wood-burning sauna stoves must meet local building codes and fire safety requirements. A licensed contractor experienced with wood-burning appliances should handle the installation.
What type of wood should I use?
Use only dry, seasoned hardwood such as birch, oak, or alder. Avoid treated lumber, plywood, or softwoods with high resin content, as these can produce excessive creosote and reduce stove performance.
What warranty does the Harvia Legend 150 SL carry?
The stove is covered by a 2-year manufacturer warranty. Refer to the included warranty documentation for full terms and conditions.
The Harvia Legend 150 SL is a well-built, high-capacity wood-burning sauna stove suited for traditional sauna enthusiasts who want reliable performance and practical installation options. If you have questions about compatibility or installation, our team is available to help before you order.