| Item information | Value |
|---|---|
| GTIN: | 6417659036528 |
| HAN: | WK200 |
| Category: | SAUNA HEATERS |
| BimSchV: | 2.Bimschv Möglich |
| Fire chamber cover: | 10 mm |
| Diameter of smoke outlet: | 115 mm |
| Country of origin: | Finland |
| Rear safety distance (flammable materials): | 300 mm |
| Rear safety distance (non-combustible materials): | 100 mm |
| Maximum length of firewood: | 490 mm |
| Minimum ceiling height (depending on connections and thus on the output, star/triangle): | 2090 mm |
| Width: | 430 mm |
| Height: | 760 mm |
| Depth: | 510 mm |
| Sauna room max: | 20 m³ |
| Sauna room min: | 8 m³ |
| Safety distance (ceiling): | 1300 mm |
| Safety distance on the left (flammable materials): | 300 mm |
| Safety distance on the left (non-combustible materials): | 100 mm |
| Safety distance on the right (flammable materials): | 300 mm |
| Safety distance on the right (flammable materials): | 100 mm |
| Stones Ø Diameter: | 100 - 150 mm |
| Stone capacity max,: | 40 kg |
| Front safety distance (non-combustible materials): | 300 mm |
| Front safety distance (combustible materials): | 300 mm |
| Heater output with BimSchV: | 14,3 kW |
| Heater output without BimSchV: | 24.1 kW |
| Content: | 1,00 Piece |
Harvia Pro 20 Black Wood-Burning Sauna Stove
Recommended Accessories
The Importance of the Right Accessories
The performance of a wood-burning sauna heater depends not only on the heater itself but also on the quality and suitability of the accessories used. The Harvia Pro 20 Black has been designed to operate with up to 40 kg of sauna stones, making the stone filling one of the most important elements of the complete sauna heating system. Suitable sauna stones store thermal energy, distribute heat evenly and help create the soft, pleasant steam that defines the traditional Finnish sauna experience.
Harvia sauna stones with a diameter of 10–15 cm are particularly suitable for wood-burning sauna heaters. Their structure allows them to absorb large amounts of heat and release it gradually during sauna use. Correctly arranged stones also support airflow through the stone compartment, improving combustion efficiency and ensuring more stable temperature conditions inside the sauna room.
The optional 850 mm Steam Cannon further enhances the sauna experience by delivering water deeper into the hottest area of the stone chamber. This creates more intensive, evenly distributed steam while reducing sudden bursts of excessive moisture. Many experienced sauna users prefer this solution because it creates a smoother and more comfortable löyly experience while allowing better control over humidity levels.
These accessories are not simply additional products but important components that work together with the heater as a complete system. The sauna stones influence heat storage, steam quality and long-term operational reliability. The steam cannon improves steam generation efficiency and user comfort. Together they help maintain consistent sauna performance, reduce unnecessary thermal stress on the heater and contribute to a more enjoyable sauna experience over many years of operation.
By selecting the correct accessories from the beginning, users can maximize the efficiency, safety, durability and overall comfort of their Harvia Pro 20 Black sauna installation while preserving the traditional character of a genuine wood-fired Finnish sauna.
Important Installation and Usage Information
The installation of a wood-burning sauna heater requires careful planning and compliance with all local building regulations, fire protection requirements and manufacturer recommendations. The Harvia Pro 20 Black is designed for sauna rooms with a volume between 8 and 20 m³. Selecting the correct sauna room size is essential to ensure efficient heating performance, proper combustion and long-term operational reliability.
Particular attention must be paid to chimney compatibility, flue gas routing and fresh air supply. Since the heater uses real wood combustion, sufficient oxygen must always be available to maintain clean and efficient burning. Poor ventilation can negatively affect combustion quality, heating performance and user safety.
The heater offers flue connection options at both the top and rear, providing flexibility for different installation situations. However, the selected configuration must always comply with applicable building regulations and chimney system requirements. Installation should be performed by qualified professionals familiar with local regulations for wood-burning appliances.
The supporting floor must be level, stable and capable of withstanding both the weight of the heater and the thermal loads generated during operation. The adjustable feet simplify precise alignment. Depending on the installation environment, additional floor protection plates, wall protection systems or radiation shields may be required to maintain prescribed safety clearances.
Sauna stones are not included in the scope of delivery and must be purchased separately. Stones should be properly arranged to allow adequate airflow through the stone compartment. Overly compact stone placement or unsuitable stones may reduce heat transfer efficiency, increase stress on the heater structure and negatively affect steam quality.
For customers in Germany and Austria, it is important to note that the appropriate BimSchV version must be selected separately where required by local regulations. Failure to use the correct version may affect legal operation and approval requirements.
Regular maintenance is equally important. The large ash box should be emptied frequently to ensure unrestricted airflow through the combustion chamber. The sauna stones should be inspected periodically and replaced when signs of deterioration become visible. Regular inspection of the combustion chamber, door seals, glass door and flue connections helps maintain safe and efficient operation throughout the heater's service life.
Why Buy From Us?
We are a partner of this brand and offer much more than simply supplying a sauna heater. Our goal is to provide a complete, well-planned solution that combines the right product, suitable accessories and practical expertise to help you achieve the best possible sauna experience.
Wood-burning sauna heaters require careful consideration of many interconnected factors, including stone selection, steam accessories, installation requirements, chimney compatibility and ongoing maintenance. Because we understand how these elements work together, we can help customers avoid unnecessary purchases, installation mistakes and compatibility issues.
The Harvia Pro 20 Black is a proven and highly respected wood-burning sauna heater, but its full potential is achieved only when the entire system is correctly configured. This is why we carefully select compatible accessories and provide meaningful product information rather than leaving customers to navigate complex technical decisions alone.
Our combination of brand partnership, extensive product knowledge and experience in the sauna industry allows us to recommend solutions that make sense technically and economically. Customers benefit from a coordinated system rather than a collection of unrelated components.
When purchasing from us, you receive not only Harvia quality but also access to expertise, suitable accessories and a logical product ecosystem designed to provide safe, reliable and enjoyable sauna operation for many years.
Warranty & Conditions
The Harvia Pro 20 Black is covered by the manufacturer's warranty conditions and applicable statutory consumer protection regulations. Professional installation, compliance with local regulations and operation according to the manufacturer's instructions are essential requirements for maintaining warranty eligibility.
The warranty generally covers manufacturing defects and material defects that occur under normal intended use. However, damage resulting from improper installation, incorrect operation, unsuitable fuels, overheating, inadequate maintenance, incorrect stone filling, insufficient ventilation or failure to comply with safety requirements is typically excluded from warranty coverage.
Wear parts, sauna stones and normal changes resulting from regular operation may also be excluded from warranty protection depending on the manufacturer's specific warranty terms and conditions.
To maintain safe operation and warranty eligibility, the heater should only be used within the specified sauna room volume of 8–20 m³ and the maximum stone capacity of 40 kg should not be exceeded. Customers in Germany and Austria should also ensure that the correct BimSchV version is selected where required.
Please keep your invoice, proof of purchase and all relevant installation documentation. These documents may be required in the event of a warranty claim or service request. Regular inspection, proper maintenance and adherence to the manufacturer's operating instructions help maximize service life, safety and long-term performance.
PLEASE NOTE
Operation within Europe:
In Europe, EN15821-2010 has been mandatory for wood-burning sauna stoves since 01/07/2012.
The sauna stoves must be equipped with a CE marking.
Operation within Germany:
From 01/01/2015, wood-burning stoves must additionally comply with BImSchV 2.
Before purchasing, be sure to consult your responsible chimney sweep and comply with all requirements issued by them and the relevant authorities.
