Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove

Enjoy the Best of Both Worlds

The Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove is a premium Finnish-engineered heating solution designed to provide the ultimate sauna experience while adding the comfort of a traditional fireplace to an adjoining room. Part of Harvia’s renowned Pro Series, this innovative wood-burning sauna stove allows you to heat your sauna efficiently while enjoying the ambiance of a cozy fire from the next room.

Whether you’re building a home sauna, upgrading a cabin retreat, or installing a luxury wellness space, the Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove delivers exceptional performance, reliable durability, and timeless Scandinavian craftsmanship.

Designed, engineered, and manufactured in Finland, this high-performance sauna heater combines powerful heating, elegant styling, and practical functionality, making it one of the most versatile wood-burning sauna stoves available.

Heat Two Rooms with One Stove

One of the standout features of the Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove is its unique dual-room design.

Unlike traditional sauna heaters, this model allows you to load firewood and enjoy a beautiful fireplace from an adjoining room while heating your sauna simultaneously.

Benefits include:

• Comfortable fireplace atmosphere
• Easy firewood loading from outside the sauna
• Cleaner sauna environment
• Efficient dual-room heating
• Enhanced relaxation before and after sauna sessions

This innovative design creates the perfect wellness experience by combining authentic sauna heat with the warmth and charm of a traditional fireplace.

Premium Finnish Engineering

The Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove is built using durable steel construction with a stylish stainless steel frame designed to withstand years of demanding use.

Its robust design provides:

• Excellent heat retention
• Long service life
• High-temperature durability
• Reliable performance
• Elegant modern appearance

Every Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove is manufactured in Finland, where sauna culture has been perfected for generations.

Powerful 24.1 kW Heating Performance

With an impressive 24.1 kW heat output, the Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove quickly heats medium to large sauna rooms while maintaining consistent temperatures throughout your sauna session.

The efficient combustion system produces:

• Fast heating
• Excellent fuel efficiency
• Even heat distribution
• Authentic wood-fired sauna atmosphere
• Comfortable steam when water is poured over the stones

The large firebox allows longer burn times, reducing the need for frequent refueling.

Large Stone Capacity for Rich Steam

The Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove accommodates up to 88 lbs of sauna stones (two 44 lb boxes sold separately).

A generous stone capacity provides:

• Softer steam (löyly)
• Better heat storage
• More even temperatures
• Longer-lasting sauna sessions
• Authentic Finnish sauna performance

Adding premium sauna stones enhances heat retention and creates a more enjoyable steam experience.

Elegant Fireplace Door

The large glass fireplace door transforms the Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove into more than just a sauna heater.

It allows you to enjoy the relaxing glow of a wood fire from the adjoining room while creating a warm and inviting atmosphere.

This elegant feature makes the stove perfect for:

• Home saunas
• Lake cabins
• Vacation homes
• Wellness retreats
• Luxury spa installations

Easy Floor Installation

The Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove is designed for floor-mounted installation, offering stability and simplified setup.

Its compact footprint makes it suitable for many sauna layouts while maintaining proper safety clearances for reliable operation.

Package Includes

Your Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove includes:

• Harvia Pro 20 Duo Steel wood-burning heater
• Installation and operation manual
• Manufacturer’s 2-year consumer warranty

Required for operation:

• 88 lbs sauna stones (2 boxes of 44 lbs, 10–15 cm stones)

Technical Specifications

Why Choose the Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove?

The Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove is the ideal choice for sauna enthusiasts who want exceptional heating performance with the added luxury of a built-in fireplace. Its dual-room functionality, premium Finnish engineering, durable steel construction, and generous stone capacity make it one of the most versatile and efficient wood-burning sauna heaters available today.

Whether you’re creating a relaxing backyard sauna, upgrading a lakeside cabin, or building a luxury spa retreat, the Harvia Pro 20 Duo Steel Wood-Burning Sauna Stove delivers authentic wood-fired sauna experiences backed by Harvia’s reputation for world-class craftsmanship.

Product Highlights

• 24.1 kW wood-burning sauna stove
• Dual-room heating with integrated fireplace
• Premium stainless steel frame
• Large glass fireplace door
• Floor-mounted installation
• Holds up to 88 lbs of sauna stones
• Durable Finnish steel construction
• Designed and manufactured in Finland
• CE Certified and EAC Listed
• 2-Year Consumer Warranty