Harvia M3 SL 16.5kW Wood-Burning Sauna Stove
- Free USA shipping
- Full Warranty
- Secure Checkout
- Authorized Dealer
The Harvia M3 SL is a dual-purpose, Finnish-engineered wood stove that heats your sauna while serving as a fireplace from the adjoining room. With a 16.5 kW output, cast-iron framed glass door, and exterior firewood feed, it delivers rich, enveloping löyly in compact to medium spaces—without disturbing the sauna atmosphere.
Key Features
- 16.5 kW wood-burning heater with exterior firewood feed: Load from outside the sauna for uninterrupted heat.
- Heats two areas: Functions as a sauna heater and a fireplace from the adjacent room.
- Cast-iron framed glass door: Durable construction with a warm fire view.
- Floor-mounted with adjustable legs: Easy leveling and secure placement.
- Ideal room size: For saunas 212–459 cu ft (adjusted volume).
- Elegant black steel finish: Robust steel body designed in Finland.
- CE / EAC certified: Meets recognized safety standards.
Required Components
- Sauna Stones: Minimum 66 lbs (2 boxes of Harvia AC3020). Pro tip: buy an extra box—natural stones vary in size/shape; more options help optimize airflow and steam quality.
- Chimney / venting system: Code-compliant flue and clearances per the installation manual.
What’s Included
- Harvia M3 SL Wood-Burning Sauna Stove
- Stove door & ash box
- Fire chamber extension (exterior feed)
- Installation & Operation Manual
- 2-Year Limited Consumer Warranty
Specifications
| Model / SKU | Harvia WKM3SL |
| Power Output | 16.5 kW (wood-burning) |
| Sauna Room Size | 212–459 cu ft (adjusted volume) |
| Stone Capacity | 66 lbs (30 kg), stones sold separately |
| Dimensions (W × D × H) | 15.3″ × 25″ × 28″ (390 × 640 × 715 mm) |
| Weight (Net) | 99 lbs (45 kg) |
| Log Feed | Max length 350 mm; Ø 80–150 mm logs |
| Finish / Body | Black steel; cast-iron framed glass door |
| Certification | CE / EAC |
| Origin | Designed, engineered, and made in Finland |
Why Buy From Us
FAQs
Shipping & Delivery
Free curbside shipping on all orders. White-glove delivery/setup available at checkout in most areas. We’ll confirm your preferred date after purchase.
Warranty
Full manufacturer warranty, registered at purchase. Need help with a claim? Our U.S. support team handles it directly with the brand.
Returns
New, uninstalled items can be returned within the brand’s policy window. We’ll help coordinate pickup and any restocking requirements.
Installation & Power
Most saunas/hot tubs require dedicated circuits. We provide spec sheets and can recommend licensed installers in your area.
