Name: Wood sauna heater Harvia Linear 22 GreenFlame LS, black
Brand: Harvia
SKU: WKLI20GLSM
Price: 1098.99 EUR
Availability: InStock

Product Information

Dimensions and Weight
Item information	Value
GTIN:	6417659029681
HAN:	WKLI22GLSM
Category:	SAUNA HEATERS
BimSchV:	Without BimSch
Diameter of smoke outlet:	115 mm
Water tank capacity:	30 L
Country of origin:	Finland
Rear safety distance (flammable materials):	300 mm
Rear safety distance (non-combustible materials):	100 mm
Minimum ceiling height (depending on connections and thus on the output, star/triangle):	2100 mm
Width:	550 mm
Height:	770 mm
Depth:	510 mm
Sauna room max:	18 m³
Sauna room min:	9 m³
Safety distance (ceiling):	1265 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):	500 mm
Front safety distance (combustible materials):	500 mm
Heater output without BimSchV:	15,7 kW
Content:	1,00 Piece

Product Description

Harvia Linear 22 GreenFlame LS Wood-Burning Sauna Stove Black

The Harvia Linear 22 GreenFlame LS combines the authentic atmosphere of a traditional wood-fired sauna with advanced combustion technology designed for modern sauna users. Suitable for sauna rooms from 9 to 22 m³, this powerful wood-burning sauna stove delivers reliable heat output, efficient fuel utilization and a comfortable sauna climate. The elegant black finish complements both traditional and contemporary sauna interiors while maintaining the characteristic Finnish sauna character that wood-burning heaters are known for.

At the heart of the stove is Harvia's innovative GreenFlame technology. This advanced combustion system optimizes the burning process to reduce emissions, improve efficiency and extract more energy from every piece of firewood. The result is cleaner combustion, lower environmental impact and a more stable heat output throughout the sauna session. Users benefit from faster heating, improved comfort and a more sustainable sauna experience.

For sauna rooms 9–22 m³

GreenFlame technology

Clean wood combustion

Reduced emissions

Efficient heat production

Even temperature distribution

High-quality steel construction

Corrosion-resistant design

Large glass fire door

Easy firewood refilling

Modern black appearance

Authentic Finnish sauna experience

The robust steel construction is specifically engineered to withstand the demanding conditions of continuous high-temperature operation. Every component, from the fire chamber to the outer housing and glass door assembly, is designed for durability, safety and long-term performance. This makes the Harvia Linear 22 GreenFlame LS a reliable choice for private sauna owners seeking a genuine wood-fire sauna experience combined with modern engineering.

A large glass door provides an attractive view of the fire and allows convenient monitoring of the combustion process. The visual presence of natural flames contributes significantly to the relaxing sauna atmosphere while also simplifying fire management. The generous opening enables comfortable loading of firewood, ensuring practical day-to-day operation.

When combined with properly selected sauna stones, the heater produces a strong yet pleasantly soft löyly. Heat is stored efficiently and released gradually into the sauna room, creating balanced humidity and temperature levels that characterize a traditional Finnish sauna session.

Recommended Accessories

Harvia Sauna Stones 20kg 10-15 cm

Art.-Nr.: AC3020

850 mm Steam Cannon

Art.-Nr.: NB-15814

Why the Right Accessories Matter

A wood-burning sauna stove should never be viewed as a standalone product. The Harvia Linear 22 GreenFlame LS is part of a complete sauna heating system where the stove, sauna stones, ventilation, chimney connection and optional accessories work together. Properly selected accessories contribute directly to performance, safety, durability and the overall sauna experience.

Harvia sauna stones with a diameter of 10 to 15 cm are particularly well suited for wood-burning sauna heaters. Their high thermal resistance allows them to absorb and store significant amounts of heat before gradually releasing it into the sauna room. This creates a more stable sauna climate and produces the rich, pleasant steam that sauna enthusiasts expect. Incorrect stone sizes or unsuitable stone materials can restrict airflow inside the heater, reduce efficiency and negatively affect the service life of the stove.

The 850 mm Steam Cannon is designed to enhance the quality of löyly by directing water deeper into the hottest stone zones. Instead of creating steam only on the surface, the water reaches areas where heat concentration is highest, producing more intensive and evenly distributed steam. This results in a softer, more controlled sauna atmosphere and a more comfortable humidity distribution throughout the room. Particularly in larger sauna spaces, a steam cannon can significantly improve the sauna experience by creating a deeper and more balanced heat sensation.

Accessories also contribute to operational safety and long-term value retention. Proper sauna stones help protect the heater from unfavorable thermal stresses by distributing heat more evenly. Well-designed water application systems support controlled steam generation and reduce the risk of excessive thermal shock. By viewing the Harvia Linear 22 GreenFlame LS as a complete system rather than an individual appliance, users achieve greater reliability, improved comfort and a more authentic wood-fired sauna experience for many years.

Important Installation and Usage Information

The installation of the Harvia Linear 22 GreenFlame LS must be carefully planned and professionally executed. The heater is designed for sauna rooms between 9 and 22 m³, and selecting the correct room volume is essential for optimal performance. An undersized heater may struggle to heat the sauna efficiently, while an oversized heater can lead to excessive heat generation and an imbalanced sauna climate. Correct sizing ensures efficient operation, comfortable temperature distribution and consistent sauna conditions.

Because this is a wood-burning sauna heater, all safety clearances to combustible materials, floor protection requirements and chimney installation regulations must be strictly observed. The heater must be installed on a suitable load-bearing and heat-resistant surface. If combustible flooring materials are present, approved protective solutions are required to safeguard against sparks, embers and prolonged heat exposure.

Ventilation is equally important. Efficient combustion requires an adequate supply of oxygen. Only when fresh air supply, exhaust air circulation and flue gas routing are properly designed can the GreenFlame technology achieve its full potential. Poor ventilation can reduce combustion efficiency, increase smoke formation and negatively affect the overall sauna environment.

Before operation, sauna stones must be correctly placed inside the heater. Stones should be arranged loosely to allow sufficient airflow and heat circulation. Damaged, brittle or unsuitable stones should not be used because they may deteriorate quickly under high temperatures and negatively influence heater performance. Regular inspection and replacement of worn stones help maintain long-term efficiency and safety.

Only suitable dry firewood should be used. Painted, treated, wet or otherwise unsuitable wood may generate excessive smoke, unpleasant odors, soot deposits and inefficient combustion. The large glass door facilitates monitoring of the fire, but the heater should always be operated responsibly and under supervision. Even after the flames have disappeared, hot surfaces and embers can remain for an extended period due to the heat-retaining properties of the stove and stones.

Why Buy From Us?

We are a partner of this brand and understand the Harvia Linear 22 GreenFlame LS not simply as an individual sauna heater, but as part of a complete sauna solution. With wood-burning sauna heaters, performance alone is not enough. The interaction between the heater, sauna stones, accessories, installation environment, ventilation and long-term operation determines the overall result.

Our product range is structured so that compatible components can be combined logically and safely. You receive not only a premium Harvia wood-burning sauna heater but also access to carefully selected accessories that contribute to safe installation, comfortable operation and long service life. This helps prevent common mistakes such as choosing unsuitable sauna stones, overlooking important system components or selecting incompatible accessories.

As a brand partner, we focus on practical and transparent product presentation. Our goal is not simply to sell a heater but to help customers find the right solution for their sauna project, room volume and personal expectations. The combination of Harvia quality, carefully selected accessories and our experience in the sauna industry provides a solid foundation for long-term customer satisfaction.

Choosing to buy from us means choosing a combination of premium products, system expertise and practical knowledge. This is particularly important for wood-burning sauna heaters where installation, safety and daily operation are closely connected. The result is a reliable, visually attractive and technically well-balanced sauna solution for authentic Finnish sauna moments.

Warranty & Conditions

Warranty and guarantee claims are subject to the respective manufacturer's terms and applicable statutory regulations. Safe long-term operation requires that the Harvia Linear 22 GreenFlame LS is installed correctly, operated according to its intended purpose and used in compliance with all technical specifications and safety requirements.

Particular attention must be paid to professional installation, proper chimney connection, adequate combustion air supply and compliance with all required safety distances. Failure to observe these requirements may affect performance, safety and eligibility for warranty claims.

The warranty generally covers material and manufacturing defects but does not include damage caused by improper installation, incorrect operation, overheating, unsuitable fuel, insufficient maintenance or the use of unsuitable sauna stones. Wear parts, sauna stones, glass components, seals and similar consumable elements may be subject to separate manufacturer regulations depending on the applicable warranty terms.

To maximize service life and maintain warranty eligibility, users should regularly remove ash, inspect sauna stones, use only suitable dry firewood and operate the heater responsibly. If visible damage, abnormal smoke formation, draft problems or combustion irregularities occur, operation should be discontinued until the cause has been identified and resolved.

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User Manual Harvia Linear 22 GreenFlame LS

Certificate Harvia Linear 22 GreenFlame LS

Manufacturer according to GPSR
Harvia oy, Teollisuustie 1-7, 40950 Muurame, Finnland, harvia@harvia.com

Wood sauna heater Harvia Linear 22 GreenFlame LS, black

1. High-quality stones perfect for sauna infusions

2. Protective cover

3. Hot Water Tank

4. Protective Base

5. Select the appropriate complete chimney kit below

6. Sauna Accessories

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Dimensions and Weight