Harvia Pro 20 SL Wood-Burning Sauna Stove

Description

Harvia Pro 20 SL Wood-Burning Sauna Stove

Through-the-Wall Sauna Heater for Convenient Wood Loading

The Harvia Pro 20 SL is designed for sauna users who want convenience without sacrificing traditional performance. Its through-the-wall design allows you to load wood from outside the sauna room, keeping the interior clean and comfortable.

Ideal for small to medium-sized sauna rooms, this stove provides powerful heating while offering the flexibility to heat from an adjacent space. The reversible door design adds further ease of use and installation flexibility.

Wood-Burning Performance

The Harvia Pro Series stove delivers deep, radiant heat through direct wood combustion, creating a natural and immersive sauna experience that electric heaters cannot replicate.

With 24.1kW of heating power, it efficiently heats sauna rooms ranging from 283 to 706 cubic feet while maintaining steady and long-lasting warmth.

Performance benefits include:

Fast and efficient heat-up
Deep, penetrating wood-fired heat
Consistent and even temperature distribution

Through-the-Wall Design for Convenience

The Pro 20 SL is built with a through-the-wall structure, allowing you to feed wood from another room or outside the sauna.

Benefits include:

Keeps sauna space clean and smoke-free
Convenient wood loading from outside
Heats two spaces simultaneously
Improved usability and comfort

Stone Requirements and Heat Performance

This stove requires 88 lbs of sauna stones (2 boxes of 44 lbs, 10–15 cm stones), sold separately.

Sauna stones store and radiate heat gradually, helping create a softer, more balanced temperature while improving steam quality and overall performance.

Key Features

24.1kW wood-burning sauna stove
Through-the-wall design for external wood loading
Heats two rooms simultaneously
Durable black steel construction
Reversible stove door for flexible installation
Designed for traditional sauna heating
Wall-mount installation
CE certified

What’s Included

Sauna stove
Stove door
Ash box
Installation and operation manual

Product Specifications

Technical Documents

Why Choose Harvia Pro Series

Harvia sauna heaters are crafted in Finland and are known for their durability, efficiency, and authentic wood-fired performance. The Pro 20 SL stands out with its through-the-wall design, offering added convenience and flexibility while maintaining powerful heating performance.