Harvia M3 SL 16.5kW Wood-Burning Sauna Stove
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Harvia M3 SL 16.5 kW Wood-Burning Sauna Stove (Exterior Feed)
Introducing the Harvia M3 SL 16.5 kW Wood-Burning Sauna Stove—a dual-purpose heater and fireplace with an exterior firewood feed. Ideal for compact to medium saunas, this Finnish-engineered unit delivers rich, enveloping löyly while keeping the sauna space undisturbed.
Key Features
- 16.5 kW wood-burning heater with exterior firewood feed—load from outside for uninterrupted saunas
- Heats two areas: serves as a sauna heater and a fireplace
- Cast-iron framed glass door—adds ambience and durability
- Floor-mounted design with adjustable legs for secure placement
- Ideal for saunas from 212 to 459 cu ft (adjusted volume) :contentReference[oaicite:0]{index=0}
- Elegant black steel finish and robust steel body, designed in Finland
Required Components
- Sauna Stones: Minimum 66 lbs (2 boxes of Harvia AC3020). Pro Tip: Buy an extra box—natural stones vary in size and shape; more options help you optimize fit and steam quality. :contentReference[oaicite:1]{index=1}
- Proper chimney/venting system and safe clearances as per installation manual.
What’s Included
- Harvia M3 SL Wood-Burning Sauna Stove
- Stove door & ash box
- Fire chamber extension
- Installation & Operation Manual
- 2-Year Limited Consumer Warranty
Installation and Operation Manual
Specifications
| Specification | Details |
|---|---|
| Model / SKU | Harvia WKM3SL |
| Power Output | 16.5 kW |
| Sauna Room Size | 212–459 cu ft (adjusted volume) :contentReference[oaicite:2]{index=2} |
| Stone Capacity | 66 lbs (30 kg) :contentReference[oaicite:3]{index=3} |
| Dimensions (W × D × H) | 15.3″ × 25″ × 28″ (390 × 640 × 715 mm) :contentReference[oaicite:4]{index=4} |
| Weight (Net) | 99 lbs (45 kg) :contentReference[oaicite:5]{index=5} |
| Log Feed | 350 mm max length × 80–150 mm diameter logs :contentReference[oaicite:6]{index=6} |
| Certification | CE / EAC :contentReference[oaicite:7]{index=7} |
Pro Tip: Stack split-face stones loosely—larger pieces in the center; smaller on the edges—for improved airflow and steam. The exterior feed lets you top up the fire without stepping out of the sauna—perfect for uninterrupted relaxation.
