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Harvia 20 PRO SL Sauna Wood Burning Stove w/ Exterior Feed | WK200SL
- Pressure: 1.4 / 1.5 ATA (therapeutic range)
- Noise: ≤50 dB for quiet home or clinic use
- Durability: Chamber & compressor rated 10k hrs
- Warranty: 2-Year + lifetime support & free parts
- Pressure Control: Dual gauges + relief valves
- Air System: Oil-free compressor + dual cooling
- Oxygen Supply: 10L concentrator (90–97% purity)
- Safety & Comfort: Built-in comms + LED lighting
Ships within 4 business days | FREE SHIPPING
- Regular price
- $1,781.00
- Regular price
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$1,922.22 - Sale price
- $1,781.00
- Unit price
- per
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- Pressure: 1.4 / 1.5 ATA (therapeutic range)
- Noise: ≤50 dB for quiet home or clinic use
- Durability: Chamber & compressor rated 10k hrs
- Warranty: 2-Year + lifetime support & free parts
- Pressure Control: Dual gauges + relief valves
- Air System: Oil-free compressor + dual cooling
- Oxygen Supply: 10L concentrator (90–97% purity)
- Safety & Comfort: Built-in comms + LED lighting
✓ Authorized Harvia Dealer since 2023
Harvia PRO 20 SL 24kW Wood Sauna Stove: Exterior Firewood Loading
The Harvia PRO 20 SL delivers the same 24kW output as the standard PRO 20 for saunas up to 700 cubic feet, with exterior firewood loading. All the wood, ash, and smoke stays outside the sauna room. Same proven Finnish PRO series combustion, cleaner interior experience.
Why Buy From RecovAthlete
We're an authorized Harvia dealer — not a marketplace reseller. Your warranty is valid and your order is fulfilled correctly. We confirm your chimney kit for your specific ceiling height before your order ships, so you don't receive the wrong flue components on installation day.
Questions about sizing, clearances, or installation? Call 866-861-6317 and you'll reach someone who has configured dozens of these setups.
“Harvia is the world's leading sauna heater manufacturer. Every stove here is a genuine OEM Harvia product, confirmed before it ships.”
Buyers who want PRO 20 performance with a clean sauna interior — all firewood handling done from outside.
Premium home sauna builds and cabin installations where the changing room or utility space is accessible from behind the sauna wall.
What You’re Actually Getting
- Exterior Firewood Loading — Load firewood from outside the sauna room. Sauna interior stays free of wood, bark, ash, and smoke.
- 24kW Output — Same proven Harvia PRO 20 combustion engine. 700 cubic foot room capacity.
- Glass Door — Tempered glass door on the sauna-interior side. Watch the fire from inside while loading happens outside.
- Heavy Stone Load — Large PRO series stone bed for deep authentic Finnish löyly.
Specifications
| Model | WK200SL |
| Heating Output | 24 kW |
| Sauna Volume | Up to 700 cubic feet |
| Loading | Exterior — from outside sauna room |
| Flue Diameter | 4.5 inches (115 mm) |
| Protective Sheath | WL550 (sold separately) |
| Safety Certification | UL listed |
Model Comparison
| Feature | PRO 20 (WK200) | PRO 20 SL | PRO 20ES |
|---|---|---|---|
| Output | 24 kW | 24 kW | 24.1 kW |
| Loading | Front (inside sauna) | Rear (outside sauna) | Rear (outside sauna) |
| Water Tank | No (add-on) | No (add-on) | Built-in |
Your room's cubic footage: length × width × height. Near the upper limit with tile walls or a cold climate? Size up. Call 866-861-6317 with your dimensions.
Installation Notes
This stove requires a chimney system running through the wall or ceiling of your sauna room. Most installations use the Harvia chimney kit — WHP1500 (stainless) or WHP1500M (black) — which is built for the standard 4.5 inches (115 mm) flue. For higher ceilings, add extension pipes WHP500 (1.64 ft) or WHP1000 (3.3 ft). A protective sheath is required if the stove is within minimum clearance distance of combustible walls. We confirm the correct chimney kit for your ceiling height before your order ships. Call 866-861-6317 for pre-installation documentation for your contractor.
On the investment: A wood-burning sauna stove built to Harvia's quality standard should last 20–30 years under regular use. Spread across years of daily sessions, the cost per use is much lower than most buyers expect. This is not a piece of equipment you replace on a schedule — it’s one you pass on.
Also Consider
- Harvia PRO 20 24kW Standard — Standard front-load version
- Harvia PRO 20ES with Water Tank — If you built-in water tank too
- Harvia PRO 20 DUO — Sauna + fireplace combo
Frequently Asked Questions
What is the difference between the Harvia PRO 20 and PRO 20 SL?
Both deliver 24kW for saunas up to 700 cu ft. The PRO 20 loads firewood from the front inside the sauna. The PRO 20 SL loads from the rear outside, keeping the sauna interior completely clean.
Easy Returns & Refunds Policy
30-Day Hassle-Free Returns
- Return any item within 30 days for a full refund*.
- Initiate your return by emailing us for simple steps.
- Note: Return shipping and restocking fees apply.
Return Conditions
- Items must be in original condition, unused, with tags and packaging.
How to Start a Return
- Contact us at info@recovathlete.com for a Return Authorization (RA#) and shipping label.
- Returns without prior request will not be accepted.
Dealing with Damages & Issues
- Inspect your order upon arrival.
- Contact us immediately for defective or incorrect items.
- We'll replace parts or issue a refund as needed.
Exchanges
- Not satisfied? Contact us for an exchange.
Refund Process
- Email us with your order number and refund reason.
- Include photos of damage if applicable.
- We'll guide you through the brand-specific refund process.
- Approved refunds processed within 10 business days to the original payment method.
- Contact us if refunds take longer than 10 business days.
Secure Your Sauna Experience with RecovAthlete's' Harvia Electric Heater Warranty
Enjoy peace of mind with your Harvia Electric Sauna Heater purchase, backed by RecovAthlete's comprehensive limited warranty. This commitment guarantees that your sauna heater will be protected against defects in materials and workmanship, ensuring a seamless and worry-free experience.
Key Features of Your Warranty:
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Coverage for Defects: Rest assured knowing that any defects in materials and workmanship are covered for a specified period. This includes one year for heating elements (coils) and five years for other sauna heater components from the date of delivery.
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Exclusive to Original Purchaser: This warranty is specifically tailored to protect you, the original consumer, emphasizing our commitment to your satisfaction.
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Variety of Remedies Available: In case of any defects, RecovAthlete offers multiple solutions:
- Replacement Parts or Entire Product: We'll provide parts or replace the product if it's beyond repair, completely free of charge.
- Refund Option: Depending on the defect's extent, get a partial or full refund of the purchase price.
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Shipping Fees Covered for Returns: If returning the defective product is necessary, we'll handle the shipping costs, ensuring a hassle-free process.
Important Warranty Details:
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Exclusions: Note that the warranty does not cover damages due to transportation, storage, improper use, lack of maintenance, unauthorized repairs, and wear and tear.
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How to Claim: Simply contact our after-sales team at info@recovathlete.com with product details and a description of the defect during the warranty period.
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Limitation of Liability: While we strive for excellence, our liability is limited to the actual amount paid for the defective product, excluding consequential or incidental damages.
By choosing Harvia Electric Sauna Heaters from RecovAthlete, you're not just buying a product; you're investing in a reliable and stress-free sauna experience. Our warranty is designed to ensure that your satisfaction remains our top priority.
Have Questions? Talk to Our Equipment Team.
We respond within 2 hours.
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