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Harvia

Harvia 50 SL Black Wood burning Heater with External Feed | WK500SL

SKU WK500SL
$8,037.00
$8,037.00

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SHIPPING & DELIVERY — HARVIA

Most in-stock Harvia heaters, controls, accessories, sauna stones, and other standard products are typically prepared for shipment within approximately 2–7 business days. Availability and timing may vary by product, destination, and fulfillment method.

Once shipped, standard ground delivery for most heaters, controls, stones, and accessories generally takes approximately 3–5 additional business days within the contiguous U.S., depending on destination and carrier routing. Oversized or freight-shipped Harvia products may require additional transit time and delivery coordination.

Harvia sauna cabins and larger specialty products have model-specific lead times. Some models are stocked and ready for fulfillment, while others may require up to approximately 12 weeks. Freight and oversized deliveries may also require additional transit time and delivery coordination.

Once your order is underway, we’ll keep you informed with available shipping and tracking updates. Have a delivery question or working toward a particular project date? We’re happy to help at support@betweenliving.com.

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Product Description

Powerful Large-Scale Heating with Convenient External Wood Loading

The Harvia WK500SL Harvia 50 External Feed Black is a high-capacity wood-burning sauna heater designed for very large sauna spaces and public sauna environments. Built to accommodate large groups, this heater delivers traditional Finnish sauna performance with substantial stone capacity and consistent heat distribution throughout spacious sauna rooms.

The external feed design allows wood to be loaded from another room or outside the building, improving convenience and helping keep the sauna environment cleaner. Combined with a large stone volume and a reversible door design, the Harvia 50 SL provides efficient operation and reliable performance for demanding sauna applications.

Key Features

  • External Feed Design: Allows wood loading from another room or outside the building.

  • High-Capacity Heating Performance: Designed for very large sauna rooms and public use.

  • Large Stone Volume: Provides consistent heat retention and steam generation.

  • Traditional Finnish Sauna Experience: Delivers authentic wood-burning sauna performance.

  • Reversible Door Design: Door opening direction can be adjusted for installation flexibility.

  • Public Sauna Ready: Built to support larger groups and continuous operation.

  • Durable Construction: Designed for long-term reliability in demanding environments.

  • Graphite Black Finish: Complements traditional and modern sauna spaces.

Specifications

Model: WK500SL
Series: Harvia 50 SL
Color: Graphite Black
Product Type: Wood-Burning Sauna Heater
Fuel Type: Wood Burning
Feed Type: External Feed System
Installation Application: Large Public Sauna Environments
Recommended Sauna Room Size: 20–50 m³
Maximum Stone Capacity: 120 kg
Door Configuration: Reversible Door Opening
Loading Access: From Adjacent Room or Outside Building
Function: Sauna Heating with External Wood Feed System


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Technical Images
User Manual
Sauna Heater Sizing Calculator
Warranty Information

***REQUIRED (SOLD SEPARATELY)
Stones: AC3020 x 6 boxes
Boxes of stones needed: 6 boxes of 20 kg stones
Accessories:
*Chimney Kit (Silver)
*Chimney Kit (Black)
Check out more pipings that you may need depending on your space or your desired layout

 

EXPLORE ALL HARVIA 50 HEATERS
Fire, stone and the setup around them Have a wood-heater question? Ask away. We can help you understand the product before you build around it.

A wood-burning heater involves more than choosing a stove. Chimney routing, room volume, clearances, stones, protective surfaces and the surrounding sauna design all matter. If one part of the setup is unclear, send us the question before ordering.

You can ask us things like...

Harvia product: Harvia 50 SL Black Wood burning Heater with External Feed | WK500SL
Chimney design, combustion clearances, floor and wall protection, local building requirements and final installation should always be confirmed against the manufacturer documentation and with the appropriate qualified local professional. Between Living can help identify the relevant Harvia specifications and product documents before that conversation.
Your email app will open with the product and your question already prepared. Add room measurements, photos or a sketch of the proposed chimney route if useful, then press send.
Between Living / Harvia

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