External Feed Sauna Heating with Flexible Installation and Traditional Wood-Fired Performance
The Harvia Pro 20 SL WKPR20SLM wood-burning sauna heater is designed to provide authentic sauna performance with the added convenience of through-the-wall fuel loading. Engineered for users who prefer heating the sauna from an adjacent room or outside the building, this design helps keep the sauna space cleaner by separating firewood handling and ash from the sauna environment.
Built with a durable galvanized black and stainless steel construction, the Pro 20 SL combines practical functionality with a refined appearance. Its glass door allows the glow of the fire to enhance the sauna atmosphere, while adjustable feet provide easier installation and stable positioning. Designed for flexibility, the heater also supports optional water tank integration for expanded functionality.
Ideal for small to medium sauna spaces, the Pro 20 SL combines traditional wood-burning performance with installation versatility.
Key Features
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External Feed Design: Allows heating from an adjacent room or outside the building.
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Through-the-Wall Operation: Helps keep the sauna space cleaner by separating fuel loading.
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Wood-Burning Sauna Heater: Delivers an authentic traditional sauna experience.
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Reversible Door Configuration: Door opening direction can be adjusted to fit sauna layouts.
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Glass Fire Door: Creates a relaxing atmosphere with visible fire presentation.
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Adjustable Feet: Supports easier installation and stable positioning on uneven surfaces.
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Water Tank Compatibility: Supports connection with a separate water tank system.
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Durable Mixed Material Construction: Combines galvanized metal and stainless steel elements.
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Ready for Installation: Includes sauna stones.
Specifications
Model: WKPR20SLM / Harvia 20SL
Series: Pro 20 SL
Product Type: Wood-Burning Sauna Heater
Fuel Loading Type: External Feed / Through-the-Wall
Construction Material: Galvanized Black Metal / Stainless Steel
Sauna Room Capacity: 282–706 cu. ft.
Stone Capacity: 90–100 lbs
Heater Weight: 153 lbs
Installation Type: Floor Mounted
Door Type: Glass Door
Leg Type: Adjustable
Water Tank Compatibility: Yes
Stones Included: Yes
Specifications
Width: 17"
Depth: 20 1/8" + 8 5/8" Collar (28 3/4" Total Depth)
Height: 30"
