Harvia Legend 300 Sauna Stove

The Legend 300 Duo is designed with a tunnel-style firebox that passes through a wall. This allows you to feed the fire from an adjacent room—like a dressing area or patio—while the main stove body heats the sauna room.

This heater requires at least 572 lbs of stones. This massive capacity is essential for the Legend series; it acts as a heat reservoir that provides a soft, consistent steam and keeps the sauna warm even after the fire has died down.

With a heating power of 23.5 kW, this is a heavy-duty heater intended for larger saunas between 529 and 1059 cubic feet. It is likely overpowered for small, residential-sized sauna rooms, so ensure your space meets these volume requirements.

Yes, the door on the Harvia Legend 300 Duo is reversible. This provides flexibility during installation, allowing you to configure the stove to best fit the layout of your sauna and the adjacent room.

Because this is a floor-standing wood-burning stove weighing over 220 lbs before adding stones, it must be placed on a non-combustible surface, such as a concrete floor or a dedicated sauna floor protector, to handle the weight and heat.

The Legend 300 Duo is engineered with a modern firebox design that promotes cleaner, more efficient wood burning. This results in less soot buildup and better heat output compared to traditional, older-style sauna stoves.