Harvia M3 SL is a wood-burning sauna stove with an external firebox, designed for saunas with a volume of 6–13 m³. This model is intended for those who want to heat the sauna from another room or from outside the building, keeping the sauna interior cleaner and more comfortable to use.
The stove is installed inside the sauna room, while firewood is loaded through the wall from the outside. The SL construction allows additional firewood to be added without disturbing sauna sessions. The glass door provides a view of the live fire, and the door opening direction can be changed according to installation requirements.
Harvia M3 SL has a 30 kg stone capacity and is designed for traditional Finnish sauna use. The stove can also be equipped with a chimney-mounted water heating tank.
Main Features
- Wood-burning sauna stove with external firebox
- Suitable for 6–13 m³ saunas
- 30 kg stone capacity
- Glass door
- Reversible door opening direction
- Ø115 mm chimney connection
- Compatible with a chimney-mounted water heater
- Certificates: CE, EAC
Advantages
- Convenient heating from another room or from outside
- Cleaner sauna environment
- View of live fire through the glass door
- Compact solution for small and medium-sized saunas
Sauna stones are sold separately.









































