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✓ Authorized Harvia Dealer since 2023
The Harvia PRO 36 DUO delivers the full commercial-grade 31kW PRO 36 output with a dual-sided installation that provides both a sauna heater and a fireplace view into an adjacent space. Load and fire from outside the sauna room. 1,060 cubic foot capacity. For large sauna facilities where the stove wall is shared with a lounge or entrance area.
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.
“DUO installations create two separate spaces with one fire. For the right architectural situation, nothing else achieves the same result.”
Large sauna facilities with shared walls where fire should be visible from both the sauna and an adjacent living/lounge space.
| Model | WK360SLUX |
| Heating Output | 31 kW |
| Configuration | Sauna + fireplace — dual fire view |
| Loading | From adjacent room side |
| Sauna Volume | Up to 1,060 cubic feet |
| Safety Certification | UL listed |
| Feature | PRO 36 Standard | PRO 36 DUO |
|---|---|---|
| Output | 31 kW | 31 kW |
| Fire View | Sauna-side only | Both sides |
| Loading | Inside sauna | Adjacent room side |
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.
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.
The PRO 36 DUO installs through a shared wall between the sauna room and an adjacent space. The firebox faces the adjacent room. Firewood is loaded from that side. The heat radiates into the sauna. A glass viewing window on the adjacent side provides a fireplace experience.
Easy Returns & Refunds Policy
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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:
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.
Exclusive to Original Purchaser: This warranty is specifically tailored to protect you, the original consumer, emphasizing our commitment to your satisfaction.
Variety of Remedies Available: In case of any defects, RecovAthlete offers multiple solutions:
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:
Exclusions: Note that the warranty does not cover damages due to transportation, storage, improper use, lack of maintenance, unauthorized repairs, and wear and tear.
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.
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.
US & Canada shipping. Financing available.


