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Harvia M3 SL Floor-Mount Exterior Feed 16.5kW Wood Sauna Stove
$1,416
$1,519
Free Shipping
Powerful 24. 1kW wood-burning sauna stove for dual-room heating—built for performance & durability.
Type
Wood-burning
Material
Stainless steel
Dual-Room Heating
Efficiently heats two spaces
High Power Output
Delivers robust 24.1kW
Exterior Feed Design
Convenient outdoor loading
Durable Construction
Built for long-lasting use
Still deciding?
Get tailored advice on whether this is the right fit for your space and goals.
| Specification | Value |
|---|---|
Type | Wood-burning |
Material | Stainless steel |
Heating Capacity | 24.1 kW |
Stone Capacity | 88 lbs |
| SKU | WK200SL |
| GTIN | 6417659005708 |
Need to compare?
Our team can clarify dimensions, power requirements, and installation details.
Want a real opinion?
Beyond the reviews — we'll share what owners love and the trade-offs to know.
The Harvia Pro 20 SL typically heats a sauna to the desired temperature in about 30-45 minutes, thanks to its powerful 24.1 kW output. This rapid heating time makes it ideal for those who want a quick and efficient sauna experience.
The Harvia Pro 20 SL can reach temperatures upwards of 190°F, depending on the size of the sauna room and conditions. This high heat capacity provides a robust and authentic sauna experience, reminiscent of traditional wood-fired saunas.
The Harvia Pro 20 SL is designed to be floor-mounted, offering stable and secure installation. It's ideal for both indoors and well-ventilated outdoor areas where it can effectively heat two separate sauna rooms.
Yes, proper ventilation is crucial for the Harvia Pro 20 SL to operate efficiently. Ensure there are adequate air inlets and outlets in the sauna room to facilitate good airflow and maintain an optimal burning environment for the stove.
Hardwoods such as birch and oak are optimal for the Harvia Pro 20 SL, as they burn longer and create consistent heat. You might need approximately 3-4 pieces of wood per session to maintain your desired sauna temperature.
The Harvia Pro 20 SL is crafted with a durable stainless steel frame and sturdy black steel exterior. These materials are chosen for their longevity, heat resistance, and corrosion resistance, ensuring the stove can withstand high-temperature environments.
Absolutely, the Harvia Pro 20 SL is safe for both home and commercial use, provided it's installed correctly with the recommended clearances. Its robust design includes features intended to prevent overheating and ensure safe operation.
Maintaining the Harvia Pro 20 SL is relatively straightforward; regular cleaning of the firebox and ash removal will keep it in top condition. Remember to check and replace sauna stones as needed to ensure efficient heat distribution and durability.
While the main focus of the Harvia Pro 20 SL is its excellent heating capability, users can personalize their sauna experience by adding sauna aromatherapy or integrating it with smart sauna controls, depending on the setup.
The Harvia Pro 20 SL is perfect for medium to large sauna spaces, capable of heating rooms between 283 to 706 cubic feet. This makes it an excellent choice for family saunas or commercial wellness centers that need effective and reliable heat across multiple rooms.
Didn't find your answer?
Get a personal reply from a human, usually within a few hours.
The Harvia Sauna Stove comes with a 2-year warranty for consumer use, assuring you of its quality and dependable performance. Harvia stoves are crafted to deliver an authentic sauna experience with lasting reliability.
We not only offer the best quality products in the market, but also at the best prices. Benefit from our price match guarantee and money-back promise, so you can shop confidently. Plus, enjoy fast & free shipping and no sales tax in most states to save even more.
This product is covered by our 30-Day Return Policy. If you need to return it, the process is simple and hassle-free. Just contact us and we’ll assist you promptly. For full return details, visit our Return Policy page.
If you have any questions or require assistance, call us at (844) 217-0652 or send us a support request. Our team is ready to help you every step of the way.
Coverage questions?
We'll walk you through what's covered, registration, and claim steps.
For our standard items and accessories, we partner with trusted parcel carriers to ensure your order arrives safely and efficiently. Standard shipping is completely free for all orders over $1,000. For orders under $1,000, shipping costs are automatically calculated at checkout based on the weight of your items and your delivery address.
Once you place your order, our fulfillment team typically packs and ships it within 1 to 3 business days. Standard transit times range from 3 to 7 business days, depending on your location. For more specific expectations, you can also find an estimated delivery time for each item directly on its product page.
As soon as your package leaves our warehouse, you will receive a shipping confirmation email containing your tracking number. You can use this link to easily follow your order's journey right to your doorstep.
Standard parcels are delivered directly to your mailbox, porch, or front door. In most cases, you do not need to be present, and no signature or scheduled delivery appointment is required.
We package our products carefully to withstand transit, but we know things can occasionally happen on the road. If your package or item arrives damaged, simply take a few clear photos and email them to hello@anysauna.com. Our team will step in and make it right immediately.
For complete details, please view our full shipping policy.
Planning your delivery?
Lead times, freight options, and install scheduling — we'll sort it out for you.
Still deciding?
Get tailored advice on whether this is the right fit for your space and goals.
| Specification | Value |
|---|---|
Type | Wood-burning |
Material | Stainless steel |
Heating Capacity | 24.1 kW |
Stone Capacity | 88 lbs |
| SKU | WK200SL |
| GTIN | 6417659005708 |
Need to compare?
Our team can clarify dimensions, power requirements, and installation details.
Want a real opinion?
Beyond the reviews — we'll share what owners love and the trade-offs to know.
The Harvia Pro 20 SL typically heats a sauna to the desired temperature in about 30-45 minutes, thanks to its powerful 24.1 kW output. This rapid heating time makes it ideal for those who want a quick and efficient sauna experience.
The Harvia Pro 20 SL can reach temperatures upwards of 190°F, depending on the size of the sauna room and conditions. This high heat capacity provides a robust and authentic sauna experience, reminiscent of traditional wood-fired saunas.
The Harvia Pro 20 SL is designed to be floor-mounted, offering stable and secure installation. It's ideal for both indoors and well-ventilated outdoor areas where it can effectively heat two separate sauna rooms.
Yes, proper ventilation is crucial for the Harvia Pro 20 SL to operate efficiently. Ensure there are adequate air inlets and outlets in the sauna room to facilitate good airflow and maintain an optimal burning environment for the stove.
Hardwoods such as birch and oak are optimal for the Harvia Pro 20 SL, as they burn longer and create consistent heat. You might need approximately 3-4 pieces of wood per session to maintain your desired sauna temperature.
The Harvia Pro 20 SL is crafted with a durable stainless steel frame and sturdy black steel exterior. These materials are chosen for their longevity, heat resistance, and corrosion resistance, ensuring the stove can withstand high-temperature environments.
Absolutely, the Harvia Pro 20 SL is safe for both home and commercial use, provided it's installed correctly with the recommended clearances. Its robust design includes features intended to prevent overheating and ensure safe operation.
Maintaining the Harvia Pro 20 SL is relatively straightforward; regular cleaning of the firebox and ash removal will keep it in top condition. Remember to check and replace sauna stones as needed to ensure efficient heat distribution and durability.
While the main focus of the Harvia Pro 20 SL is its excellent heating capability, users can personalize their sauna experience by adding sauna aromatherapy or integrating it with smart sauna controls, depending on the setup.
The Harvia Pro 20 SL is perfect for medium to large sauna spaces, capable of heating rooms between 283 to 706 cubic feet. This makes it an excellent choice for family saunas or commercial wellness centers that need effective and reliable heat across multiple rooms.
Didn't find your answer?
Get a personal reply from a human, usually within a few hours.
The Harvia Sauna Stove comes with a 2-year warranty for consumer use, assuring you of its quality and dependable performance. Harvia stoves are crafted to deliver an authentic sauna experience with lasting reliability.
We not only offer the best quality products in the market, but also at the best prices. Benefit from our price match guarantee and money-back promise, so you can shop confidently. Plus, enjoy fast & free shipping and no sales tax in most states to save even more.
This product is covered by our 30-Day Return Policy. If you need to return it, the process is simple and hassle-free. Just contact us and we’ll assist you promptly. For full return details, visit our Return Policy page.
If you have any questions or require assistance, call us at (844) 217-0652 or send us a support request. Our team is ready to help you every step of the way.
Coverage questions?
We'll walk you through what's covered, registration, and claim steps.
For our standard items and accessories, we partner with trusted parcel carriers to ensure your order arrives safely and efficiently. Standard shipping is completely free for all orders over $1,000. For orders under $1,000, shipping costs are automatically calculated at checkout based on the weight of your items and your delivery address.
Once you place your order, our fulfillment team typically packs and ships it within 1 to 3 business days. Standard transit times range from 3 to 7 business days, depending on your location. For more specific expectations, you can also find an estimated delivery time for each item directly on its product page.
As soon as your package leaves our warehouse, you will receive a shipping confirmation email containing your tracking number. You can use this link to easily follow your order's journey right to your doorstep.
Standard parcels are delivered directly to your mailbox, porch, or front door. In most cases, you do not need to be present, and no signature or scheduled delivery appointment is required.
We package our products carefully to withstand transit, but we know things can occasionally happen on the road. If your package or item arrives damaged, simply take a few clear photos and email them to hello@anysauna.com. Our team will step in and make it right immediately.
For complete details, please view our full shipping policy.
Planning your delivery?
Lead times, freight options, and install scheduling — we'll sort it out for you.
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