Harvia 36 Duo Wood-Burning Sauna Stove

Experience the pinnacle of traditional Finnish sauna culture with the Harvia 36 Duo. This unique, high-capacity wood-burning stove features a sophisticated 2-in-1 design, functioning as both a powerful sauna heater and a stylish fireplace. Designed specifically for large saunas, the Harvia 36 Duo allows you to heat your sauna from an adjacent room, transforming your relaxation area with the warm, atmospheric glow of a fireplace while delivering intense, therapeutic steam inside.

Precision-engineered in Finland, the Harvia 36 Duo is the ultimate solution for large-scale outdoor saunas or commercial-grade spa facilities.

Revolutionary Dual-Room Heating

The Harvia 36 Duo is built with an innovative through-the-wall firebox, enabling you to load firewood and manage the fire from a separate room or dressing area. This keeps the sauna interior free from wood debris and ash, maximizing cleanliness and space. The large, steel-framed glass door acts as a decorative fireplace in the adjoining room, allowing bathers to relax by the fire during breaks between sauna sessions.

Unmatched Performance for Large Spaces

With a robust 31 kW power rating, the Harvia 36 Duo is a powerhouse designed for rooms as large as 1,271 cubic feet. Its high stone capacity—holding up to 132 lbs (60 kg)—acts as a massive thermal reservoir. This ensures that the sauna maintains a consistent heat and provides an abundance of soft, enveloping steam (Loyly) whenever water is added to the stones.

Built for Durability and Style

Constructed from high-grade stainless steel, the outer casing of the Harvia 36 Duo offers exceptional resistance to heat and corrosion. To ensure long-lasting performance in high-demand environments, the fire chamber cover is made of 10mm thick steel. The stove also includes adjustable feet for easy leveling on uneven floors and a top flue connection for seamless chimney installation.

Features

• Innovative 2-in-1 Design: Functions as both a high-performance sauna heater and an elegant fireplace.

• Through-the-Wall Firebox: Load wood and enjoy the fireplace ambiance from an adjacent room.

• High-Output Heating: 31 kW power rating for large saunas up to 1271 cu. ft.

• Large Tempered Glass Door: Stylish steel frame provides a clear view of the fire.

• Massive Stone Reservoir: Holds 132 lbs of stones for superior heat retention and steam.

• Premium Finnish Craftsmanship: Designed, engineered, and made in Finland.

• Durable Construction: Stainless steel outer casing and 10mm thick fire chamber cover.

• Easy Leveling: Floor-standing model equipped with adjustable feet.

Specifications

• Power Output: 31 kW.

• Sauna Room Size: 494 – 1,271 cubic feet (14 – 36 m³).

• Stone Capacity: 132 lbs (60 kg) (Requires 3 boxes, sold separately).

• Dimensions: 20" W x 31" D x 32" H.

• Heater Weight: 176 lbs (Approx. 80 kg).

• Maximum Firewood Length: 15.3" (390 mm).

• Flue Connection: Top location.

• Warranty: Manufacturer's limited warranty included.

What’s Included

• (1) Harvia 36 Duo Wood-Burning Stove

• (1) Steel-Framed Glass Firebox Door

• (1) Removable Ash Box

• (1) Set of Adjustable Legs

• (1) Installation and Operation Manual