The Harvia M3 SL is a dual-purpose, Finnish-engineered wood stove that heats your sauna while serving as a fireplace from the adjoining room. With a 16.5 kW output, cast-iron framed glass door, and exterior firewood feed, it delivers rich, enveloping löyly in compact to medium spaces—without disturbing the sauna atmosphere.
Key Features
- 16.5 kW wood-burning heater with exterior firewood feed: Load from outside the sauna for uninterrupted heat.
- Heats two areas: Functions as a sauna heater and a fireplace from the adjacent room.
- Cast-iron framed glass door: Durable construction with a warm fire view.
- Floor-mounted with adjustable legs: Easy leveling and secure placement.
- Ideal room size: For saunas 212–459 cu ft (adjusted volume).
- Elegant black steel finish: Robust steel body designed in Finland.
- CE / EAC certified: Meets recognized safety standards.
Required Components
- Sauna Stones: Minimum 66 lbs (2 boxes of Harvia AC3020). Pro tip: buy an extra box—natural stones vary in size/shape; more options help optimize airflow and steam quality.
- Chimney / venting system: Code-compliant flue and clearances per the installation manual.
What’s Included
- Harvia M3 SL Wood-Burning Sauna Stove
- Stove door & ash box
- Fire chamber extension (exterior feed)
- Installation & Operation Manual
- 2-Year Limited Consumer Warranty
Specifications
| Model / SKU | Harvia WKM3SL |
| Power Output | 16.5 kW (wood-burning) |
| Sauna Room Size | 212–459 cu ft (adjusted volume) |
| Stone Capacity | 66 lbs (30 kg), stones sold separately |
| Dimensions (W × D × H) | 15.3″ × 25″ × 28″ (390 × 640 × 715 mm) |
| Weight (Net) | 99 lbs (45 kg) |
| Log Feed | Max length 350 mm; Ø 80–150 mm logs |
| Finish / Body | Black steel; cast-iron framed glass door |
| Certification | CE / EAC |
| Origin | Designed, engineered, and made in Finland |
Shipping & Delivery
Do you ship to the USA? Yes, we provide shipping to the contiguous United States. Shipping costs and estimated delivery times are calculated at checkout based on the weight and dimensions of your order.
Are there import duties or taxes? Transparency Disclosure: Because your order ships from the DE, it may be subject to US import duties or customs fees. These fees are the responsibility of us.
How long is the "Handling Time"? Our standard handling time is 1–2 business days. This is the time it takes to process your order before it leaves our facility.
What is the "Transit Time"? Transit time to the USA typically takes 3–5 business days via our international carriers. You will receive a tracking link as soon as your order is dispatched.
Returns & Refunds
What is your return window? In alignment with Google’s best practices, we offer a 30-day return policy. You have 30 days from the date of delivery to request a return.
How do I start a return? To initiate a return, please email Contact@yourspapool.com with your order number. We will provide you with the appropriate return shipping address.
What condition must the items be in? Items must be in their original packaging, unused, and in the same condition that you received them.
When will I receive my refund? Once your return is received and inspected, we will process your refund within 10 business days. The credit will automatically be applied to your original method of payment.
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