Electric Sauna Heater Calculator

Find the perfect heater for your sauna

Tips for Choosing an Electric Sauna Heater

If your sauna has cold surfaces like glass, stone, or concrete, you'll need a stronger heater than you would for an all-wood sauna. This calculator takes that into account.
Larger heaters not only make it easier to reach and maintain higher temperatures, but they also last longer and provide more consistent heat thanks to their higher stone capacity.
If you're deciding between two sizes, it's usually better to go with the larger one. Smaller heaters often have a hard time keeping up, but no one's ever told us they regret choosing a bit more power.

Sauna Dimensions

Unit

Depth (feet)

Width (feet)

Height (feet)

Cubic Feet

Total Volume: 0 cubic feet

Cold Surface Area

Glass, stone, tile, or concrete surfaces absorb extra heat — each ft² adds ~4 ft³ to the calculated volume

Or enter total cold surface area directly: ft²

Total Cold Surface Area: 0 ft²

Brand & Model Preference (Optional)

Preferred Brand?

Preferred Model?

Please enter valid dimensions to continue

Looking for a Wood-Burning Sauna Heater?

Prefer the traditional wood-fired experience? Whether it’s for an outdoor sauna or you love the crackle of real flames, we’ll help you find the perfect match. Use our calculator to get personalized recommendations in seconds.

Find Your Wood Heater