No products in the cart.
🍁Free Shipping on Heaters & Sauna Accessories | Orders Over $350 🍁
Total Price: $1,734.95
Read warranty disclaimer before purchase..
The Harvia M3 SL is a practical and efficient wood-burning sauna heater designed for users who want to heat their sauna from another room or from outside the building. Its through-the-wall design keeps firewood, ash, and smoke out of the sauna while maintaining the traditional warmth and atmosphere of a wood-fired sauna.
Ideal for small to medium-sized sauna rooms, the M3 SL delivers reliable heat and an enjoyable bathing experience. A glass door allows the comforting glow of the fire to enhance the sauna ambiance, while the reversible door opening provides added flexibility during installation. Adjustable legs make leveling the heater simple, even on uneven or sloped floors.
| Model | WKM3SL |
| Heater output kW | 16.5 |
| Sauna room min. cu ft (m³) | 212 (6) |
| Sauna room max. cu ft (m³) | 459 (13) |
| Sauna room height min. in (cm) | 74 7/8 (190) |
| Stone capacity max. lbs (kg) | 66 (30) |
| Dimensions width in (mm) | 15 3/8 (390) |
| Dimensions height in (mm) | 28 (710) |
| Dimensions depth in (mm) | 17 + 8 5/8 (430 + 220) |
| Weight lbs (kg) | 110 (50) |
| Safety distance to sides and back, masonry walls E, in (mm) | 2 (50)* |
| Safety distance to sides (B) and back (C), walls and benches made of inflammable materials, in (mm) | 11 7/8 (300) |
| Safety distance to front (D) in (mm) | 11 7/8 (300) |
| Safety distance from upper surface to ceiling A min. in (mm) | 51 1/8 (1300) |
| Fire chamber cover in (mm) | 3/16 (5) |
| Location of smoke outlets at rear: from floor to centre of hole in (mm) | 22 (560) |
| Location of smoke outlets on top: from rear edge to centre of hole in (mm) | 4 3/4 (120) |
| Diameter of smoke outlet in (mm) | 4 1/2 (115) |
* Leave 2″ (50 mm) between the stove and walls, provided that the air can circulate in front and to one side of the stove.
If the stove is installed in a recessed wall, leave 4″ (100 mm) between the stove and walls for the air circulation.
| Weight | 112 lbs |
| Dimensions | 16.5 × 29 × 30 in |
Be the first to hear about seasonal bundles, limited runs, and tips.
By subscribing, you agree to our Terms & Condition & Privacy Policy.
