Harvia PRO 20 SL 24kW Wood Burning Sauna Stove w/ Exterior Feed | WK200SL
Harvia PRO 20 SL 24kW Wood Burning Sauna Stove w/ Exterior Feed | WK200SL
The Harvia Pro 20 SL is designed for people who want to conveniently heat their sauna from another room or outside the building. The Harvia 20 PRO SL stove is designed for vigorous sauna bathing up to 200F in medium-sized saunas. Thanks to the large stone compartment of the stove, the steam created from pouring water on the stones is plentiful and relaxing.
The Harvia 20 SL offers exceptional convenience, allowing bathers to feed wood into the sauna from another room. While someone is enjoying the heat in the sauna room another bather can be relaxing in the next room while appreciating the glow of the flames behind the cast-iron-framed glass door. The opening direction of the sauna stove door can be changed for ease of use. The Harvia 20 SL is perfect for daily use in small and medium-sized saunas from 283 to 706 cubic feet.
Features:
- For sauna rooms from 283 to 706 cu. ft.
- Sauna stove and fireplace-in-one
- Heats two rooms
- 24kW
- 88 pound stone capacity (Requires 2 boxes sold separately)
- Cast-iron-framed glass door
- Floor Installation with adjustable feet
- Stove pipe connections on top and upper rear
- Ash Box
- Designed, engineered, and made in Finland
- Dimensions: 17" W (430mm) x 28.7" D (730mm) x 30" H (760mm)
- Limited 2-year warranty
Specification
Specifications:
Kilowatt Rating: 24.1 KW
Primary Fuel: Wood
Cubic Feet Capacity:
- Minimum: 283 CF
- Maximum: 706 CF
Firewood Specifications:
- Maximum Length: 13.7" (350mm)
- Diameter Range: 3-6" (80-150mm)
Weight:
- Heater Weight: 154 lbs
- Shipping Weight (with Sauna Stones): 242 lbs
Dimensions:
- Width: 17" (430mm)
- Depth: 28.7" (730mm)
- Height: 30" (760mm)
Minimum Room Height: 81.1" (2060mm)
Safety Distances:






Includes
Included:
- Sauna Stove
- Installation and operation manual
- 2 year warranty (Consumer use)
Add-Ons:
- 2 boxes of Harvia stones 88 lbs
- Harvia Pipe Adaptor (4.5" Euro -> 6" USA)
- Protective Bedding (to protect combustible floor material)
- Protective Sheath Panel (reduces safety distance to combustible materials)
- Chimney Kits (everything you need to safely exhaust)
- Water Tank Heater
Manual
Order Processing: Once your order is placed, you’ll receive a confirmation email. Please allow 1–3 business days for order review and processing. If we need to confirm delivery details or there are any delays, we’ll reach out right away.
How Saunas Ship:
- Freight Delivery (Most Saunas): Sauna kits and larger models ship on a pallet via freight carrier and are delivered curbside.
- Parcel Shipping (Smaller Items): Accessories or small components may ship via UPS, FedEx, or USPS.
Estimated Delivery Timeline:
- Processing: 1–3 business days.
- Estimated Ship-Out: Typically ships in 1–2 weeks.
- Transit Time: Freight shipments typically take 3–10 business days once shipped.
- Delivery Appointment: The carrier will usually contact you to schedule delivery. An adult must be present to receive and inspect the shipment.
Important Delivery Notes:
- Curbside Delivery: Freight is delivered to the end of your driveway or loading area. Inside delivery or white-glove service is not included unless arranged in advance.
- Measure First: Confirm doorway widths, staircases, and access paths. Sauna kits ship in multiple boxes and/or pallets.
- Inspect on Arrival: Before signing, check for visible damage to packaging or pallet.
If There’s Damage: Note it on the delivery receipt (ex: “Damaged – subject to inspection”), take photos, and contact us within 48 hours so we can assist with next steps.
Warranty Coverage:
We are an authorized dealer, and all saunas include the full manufacturer’s warranty. Coverage terms vary by brand and model and are listed on the product page.
What’s Typically Covered:
- Manufacturer defects in sauna materials and components
- Heaters, controls, and electrical components per manufacturer policy
- Replacement parts shipped to you (labor not typically included)
What’s Typically Not Covered:
- Shipping damage not noted at delivery
- Natural wood variation, knots, or movement over time
- Improper installation, misuse, or operation outside manufacturer guidelines
- Electrical issues due to incorrect wiring or inadequate power supply
Need Help? If you have questions or need to start a warranty claim, contact us and we’ll help coordinate with the manufacturer to get things resolved as quickly as possible.
Sauna FAQs
Get in touch
Have a question? We'd love to hear from you. Send us a message and we'll respond as soon as possible.
