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Total Price: $4,182.95
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The Harvia Pro 36 DUO Steel combines high-capacity sauna performance with the practicality of a through-wall design, making it ideal for large sauna spaces. Its DUO structure allows firewood to be added from outside the sauna, helping keep the interior clean while maintaining a consistent and powerful heat output.
A large glass hatch creates a warm fireplace atmosphere in the adjacent room, enhancing the overall sauna experience. The heater’s generous stone capacity ensures rapid heating and strong steam production, delivering a traditional, high-quality sauna session even for larger groups.
Built with a stainless steel outer shell, the Pro 36 DUO Steel is designed for durability and long-term use. Adjustable feet simplify installation and allow precise alignment of the chimney connection. The design also provides greater freedom for sauna bench layout by freeing up internal space, while ash removal from outside adds further convenience. A separately sold chimney-mounted water tank can be added for additional functionality.
| Model | WKPR36DUOS |
| Heater output kW | 31 |
| Sauna room min. cu ft (m³) | 494 (14) |
| Sauna room max. cu ft (m³) | 1271 (36) |
| Stone capacity max. lbs (kg) | 132 (60) |
| Dimensions width in (mm) | 20 (510) |
| Dimensions height in (mm) | 31 7/8 (810) |
| Dimensions depth in (mm) | 20 + 11 (510 + 280) |
| Weight lbs (kg) | 176 (80) |
| 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) | 19 5/8 (500) |
| Safety distance to front (D) in (mm) | 19 5/8 (500) |
| Safety distance from upper surface to ceiling A min. in (mm) | 49 1/4 (1250) |
| Fire chamber cover in (mm) | 1/4 (6) |
| 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 | 145 lbs |
| Dimensions | 23 × 22 × 35 in |
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