Wood-Burning Sauna Heater Size Calculator

Wood-Burning Sauna Stove Size Calculator

1 Interior Sauna Room Dimensions

Depth of Sauna:

Width of Sauna:

Height of Sauna:

Or Total Cubic Feet Volume (if known): ft³

2 Preferred Brand

Select your preferred heater brand:

3 Feed Type (Optional)

Select feed type:

Internal Wood Feed

These stoves are loaded with wood from inside the sauna, making them perfect for most saunas or spaces without external access. They're simple to use and keep everything contained within your sauna room.

Thru Wall Wood Feed

Thru Wall stoves let you feed wood from an adjacent room or outdoors, keeping your sauna clean by avoiding messy wood indoors or splinters. Plus, while someone enjoys the heat inside, another person can relax next door, admiring the fire's glow through a stylish glass door.

Wood-Burning Sauna Heater Selection Tips

Choose a stove where your sauna's volume falls in the middle of the recommended range for optimal performance.
Always allow for proper clearances around your wood stove as specified by the manufacturer.
Consider installation requirements - floor protection, chimney specifications, and local building codes.
For outdoor saunas, thru-wall models offer the advantage of feeding wood from outside.
The right size heater will heat your sauna efficiently without wasting fuel or struggling to reach temperature.

Planning an Indoor Sauna Instead?

If you're considering an indoor or electric-heated sauna, our easy-to-use Electric Sauna Heater Calculator will help you size the right unit and find compatible models.

Browse top options from Harvia, HUUM, Saunum, and more.

Try the Electric Heater Calculator

Wood-Burning Sauna Heater Sizing Tool