The stove
Harvia M3 SL · WKM3SL
- Width
- 15 in39 cm
- Depth
- 26 in65 cm
- Height
- 28 in71 cm
Product dimensions are not available for this model.
Stove weight without stones105.8 lb / 48 kg
Free shipping in Canada on all heaters*
By appointment only

Harvia wood-burning sauna stove
PLAN YOUR SPACE & PICKUP
Harvia M3 SL · WKM3SL
Product dimensions are not available for this model.
Stove weight without stones105.8 lb / 48 kg
Stove in its factory packaging
Packaging dimensions are not available for this model.
Packed weight stove + packaging111.6 lb / 50.6 kg
* Dimensions in inches are rounded to the nearest whole inch. Use the centimetre measurements to check the fit.
Picking up at our warehouse or a shipping terminal?Use the box measurements to plan your vehicle space. Added stones, chimney parts or freight packing can make the complete shipment larger and heavier.
Product information
Harvia M3 SL Wood-Burning Sauna Stove: Embrace the Outdoor Sauna Revolution
Discover the Harvia M3 SL Wood-Burning Sauna Stove, a unique innovation now for sale in Canada and the USA, designed for those who cherish an authentic Finnish sauna experience with a modern twist. This exquisite model, featuring outside firewood feeding, is a game-changer for sauna enthusiasts seeking both tradition and convenience.
Elevate your sauna experience in Canada and the USA with the Harvia M3 SL Wood-Burning Sauna Stove. Infuse your home with the spirit of Finnish sauna culture, redefined with modern functionality and safety. Get ready to transform your sauna into a haven of tranquility and warmth with the Harvia M3 SL wood sauna stove in Canada or the USA.
Wood-stove installation noticeInstallation must follow the manufacturer manual, required safety clearances, and all applicable local building and fire codes. Use approved chimney components and have the installation inspected by the authority having jurisdiction.
Manuals and drawings
Official manuals and model-specific documents from the current product.
ALSO IN THE M3 FAMILY
Explore the standard M3, with the firebox door and wood loading inside the sauna room.
Inside loading
ANOTHER WAY TO ENJOY YOUR SAUNA
Keep the fire and loading door together inside the sauna.
The standard M3 is loaded from inside the sauna. Choose the stove and accessories for this installation layout.
Explore Harvia M3Google Reviews
Independent feedback from our Google Business Profile.
Amazing customer service and products. Always there to answer a technical question and advise on best practices when building a sauna.
Excellent communication and good European design sauna door.
Serge at Zapara was very responsive in email communication clarifying my sauna heater needs, Wi-Fi control, stones and size.
Excellent service, very friendly and very responsive.
We ordered a sauna heater and had a fantastic experience from start to finish. Great communication and price.
Amazing customer service and fantastic products.
KEEP YOUR HEATER READY
Check the model and fit notes below before ordering.
184 × 210 × 4 mm replacement glass for the standard WX048/SP048 door. Glass only; confirm the original door and dimensions.
For M3 SL with its original standard glass door from 2006 onward. Match the model plate and installed part before quotation.
135 × 290 mm replacement firebox grate. Match the original removable grate before ordering.
For M3 SL with its original standard glass door from 2006 onward. Match the model plate and installed part before quotation.
For M3 SL. Replacement black ash box for the verified ES and SL wood-heater models. Confirm the original ash-box length and heater version before ordering.
For M3 SL. Two 50 mm covers for compatible flue-service openings. Confirm the original opening diameter and heater version; these do not replace the 75 mm covers.
For the pre-2024 M3 SL version using the 115 mm smoke-outlet cover. Verify the original cover and production year; this is not a 50 or 75 mm service cap.

10–15 cm angular sauna stones; order the quantity required by this stove.

10–15 cm heat-treated olivine diabase for frequent use; match the stove’s stone capacity.

10–15 cm black vulcanite stones; follow the stove’s stone-loading instructions.
Need a replacement part? Send the heater model, serial number and a photo of the part or rating plate. We’ll help confirm the fit.
Ask about this heaterPARTS REQUEST
Tell us how to reach you and how you would like to receive the part. We’ll confirm compatibility, availability and the final price.