

Sauna Company USA · Wood-Burning Stove
Harvia Pro 20
Harvia Pro 20. A wood-fired sauna stove for authentic, long-lasting radiant heat and rich löyly. Suited for rooms roughly 283–706 cu ft.
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Harvia Pro 20 Wood-Burning Sauna Stove
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Overview
Harvia Pro 20 — a wood-burning sauna stove by Harvia. Suited for rooms roughly 283–706 cu ft.
The through-the-wall Harvia Pro 20 SL offers exceptional convenience, allowing bathers to feed wood into the sauna from another room. The opening direction of the sauna stove door can be changed for ease of use. The Harvia Pro 20 SL is perfect for daily use in small and medium-sized saunas from 283 to 706 adjusted cubic feet (ACF).
Required sauna stones 88 lbs (2 boxes) sold separately.
Key Features
Harvia Pro 20
- Wood-burning sauna stove — no electricity required
- Gentle, long-lasting radiant heat and rich löyly steam
- Heavy-duty steel construction
- Includes flue collar; requires a code-compliant chimney and clearance to combustibles
Sauna stones are required and sold separately unless noted. Professional installation is recommended.

Every Detail
Specifications & Details
Specifications
Brand: Harvia
Heat Source: Wood-Burning
Construction: Steel
Recommended Room: 283–706 cu ft
What's Included
- Harvia Pro 20 wood-burning sauna stove
- Flue collar
- Installation manual
Not included: sauna stones, chimney/flue pipe (sold separately).
Sizing & Chimney
Match the stove to your room volume and follow the manufacturer’s clearance-to-combustible distances. A code-compliant insulated chimney is required.
Shipping & Warranty
Shipping: Freight, curbside delivery.
Warranty: Manufacturer limited warranty against defects.
Title
Questions about sizing? Use the heater sizing guide or contact us directly.
Returns & Refunds
30-Day Return Policy
We accept returns on this product within 30 days of delivery. To initiate a return, email info@saunacompanyusa.com with your order number.
Shipping Damage — If the return is required due to damage, include photos of the damage and note whether shipping damage was recorded upon signing for delivery. Shipping costs are fully covered for carrier-caused damage.
No-Damage Returns — No restocking fee is charged. You will be issued a credit for the full amount paid, less any required new boxing fees of approximately $20–$50 depending on the product.
Damaged Product — If the product is damaged, you will be notified to file a claim with your shipper. We assist throughout the process.
View our full Return Policy for complete details.
Resources
Documents & Manuals
Installation & User Manual
Product manuals available on request — contact us.
Returns & Refunds
Product manuals available on request — contact us.
About Harvia
Real fire. Real sauna.
The Harvia Pro 20 brings the timeless ritual of a wood-fired sauna — the crackle of the fire, the aroma of birch, and a deep, enveloping heat that electric simply can’t replicate. Built by Harvia for a lifetime of use.
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