The Harvia Duo Series Stainless Steel Wood Sauna Stove with Sauna Stones is a premium, dual-room heater designed for large saunas and adjacent spaces. Built in Finland, it combines traditional Finnish heat with modern convenience to create a seamless, cozy retreat.

• Dual-room heating: A 2-in-1 design that heats both the sauna and an adjoining room at the same time for a fluid transition from intense heat to warm ambience.
• External wood loading: Load firewood from another room to keep the sauna clean and free of mess while preserving the pristine interior.
• 132 lb stone capacity: A generous stone load delivers authentic Finnish steam and steady, long-lasting heat.
• Stainless steel outer casing: Robust and durable construction built to withstand years of heavy use in large saunas.
• Large steel-framed glass door: Provides a clear view of the crackling flames and enhances the room’s ambience.
• Power options: Available in 24.1 kW (WK200SLUX) and 31 kW (WK360SLUX) to suit different space sizes and ventilation needs.
• Heats 494–1,271 ft³: Flexible output range that covers a broad spectrum of large sauna environments.
• Adjustable feet: Ensures stable, level installation on a variety of floor surfaces.
• Made in Finland: Meticulous craftsmanship that blends traditional expertise with modern engineering.

The Harvia Duo transforms a large sauna into a wellness sanctuary by marrying traditional heat therapy with the comfort of a nearby warm room. The external loading system keeps the sauna pristine, while the adjoining-room fireplace capability extends warmth and atmosphere to social spaces. With two power configurations, you can tailor performance to your space, achieving efficient, consistent heat from the sauna to the adjacent area. This stove is ideal for large home saunas, wellness rooms, or spaces where you want spa-quality warmth without installing separate heating systems. It also suits compact layouts—tiny homes or sheds—where a single appliance delivers both sauna heat and cozy living-room ambiance. The result is a versatile, durable centerpiece that supports extended sessions, social gatherings, and year-round use.