With easy assembly and a sleek design, this compact sauna transforms any urban backyard or rooftop into a personal oasis, providing a full sauna experience in a smaller footprint.
Designed for urban living, the Duo Sauna is our most compact outdoor model, perfect for small spaces or couples seeking an intimate retreat. Its modern, minimalist design pairs with easy DIY assembly, making it simple to create a personal wellness oasis right in your backyard.
Why Redwood Outdoors?
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Easy Assembly: Design for on-site assembly with manuals and videos to guide you.
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Deep Relaxation: Sit back, clear your mind, and enjoy the health benefits.
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Exclusive Design: You won't find this anywhere else, we're sure you're going to love it.
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Highest Quality: Includes a heater made in Finland by Harvia, the world's #1 heater manufacturer.
What’s Included:
- Duo Sauna (2-Person)
- 6kW Harvia KIP Heater with upgrade options available:
- 8kW Harvia KIP
- 8kW Harvia KIP Wi-Fi
- 6kW Harvia Spirit Wi-Fi
- Harvia Sauna Rocks – Delivering gentle, consistent heat
- Thermowood Wall-Mounted Backrest – Enhancing comfort and support
- Bulkhead Light – Creating a warm, inviting glow
- Traditional Felt Sauna Hat (1) – A must-have for heat retention and scalp protection
- Towel Peg – For easy storage
- Shingles – Providing additional weather protection
- Redwood Outdoors Doormat (available only with sauna purchase)
PRODUCT FEATURES
Built to Last with thermowood: Crafted from premium hemlock thermowood, this sauna is engineered for durability and longevity. Thermal modification enhances the wood’s stability, insulating properties, and resistance to rot and fungi—ensuring your sauna withstands the elements with minimal maintenance. Free from resin and naturally weather-resistant, thermowood is the ultimate material for a sauna that lasts a lifetime.
True Scandinavian Sauna Experience: Enjoy the authentic warmth of a traditional sauna, reaching your ideal temperature promptly. Whether you prefer dry heat or steam, the Duo Sauna offers a versatile experience that promotes relaxation, improves circulation, and supports muscle recovery.
Easy DIY Assembly: Our saunas are designed for hassle-free assembly—no sawing or cutting required. With pre-cut, interlocking panels, you can build your Duo Sauna in just a few hours, even with basic DIY skills.
The Benefits of Heat Therapy: A daily sauna session can help:
- Boost circulation and cardiovascular health
- Soothe sore muscles and enhance recovery
- Reduce stress and improve sleep
- Detoxify through deep, purifying sweat
HEATER INFORMATION
We have carefully selected top-tier sauna heaters to pair with our saunas, ensuring an exceptional experience no matter what you choose. When selecting a heater, consider factors such as design, Wi-Fi versus manual control, dry versus humid heat, and your budget.
For assistance, we are available at +1 (800) 990-2967
Harvia KIP: A traditional Finnish wall-mounted heater with dual manual controls, including a delay timer. You can set the heater to start heating automatically, up to 8 hours after it is set. With 40 lbs. of rocks, this heater comes to temp quickly and allows you to create steam throughout your session by ladling water over the stones.
Harvia KIP Wi-Fi: The same reliable performance as the classic KIP model, with the added convenience of Wi-Fi control. Manage your sauna remotely, wherever you are, for greater flexibility. Set your weekly sauna schedule through the mobile app so that your sauna is preheated automatically, exactly when you need it to be.
Harvia Spirit: This modern heater combines aesthetic, curved design with the convenience of Wi-Fi control. It holds a substantial number of open-air rounded stones, providing soft, ample steam to enhance your sauna experience while adding a stylish touch to your space.
Harvia Virta: Our most powerful heater, built for frequent use and exceptional performance in cold climates. With over 100 lbs. of stones, this heater delivers steady heat and abundant steam. Wi-Fi enabled for remote control and scheduling, the Virta is perfect for those who want premium reliability and convenience.
PRODUCT SPECIFICATIONS
Specification Diagrams:


Specifications:
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Seating Capacity: 2 people depending on the seating arrangement as well as the size and proximity of the bathers
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Wood Type: Canadian Thermowood
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Exterior Dimensions: 68 ¾” L x 50 ¾” W x 81” H with trim installed // 68 ¾” L x 48 ¾” W x 80” H without trim installed
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Weight: 910 lbs
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Accessories Included: Backrest, sauna rocks, light fixture, and shingles
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Door: Tempered glass door included
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Porch: Front step sold separately
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Number of Cradles: 2
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Electrical Requirements: 120V for lighting and 240V for the heater
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Light Fixture Dimensions: 9" L x 9 ¼ W x 7" H
Packaging & Shipping Information:
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Shipping Format: Wooden crate
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Shipping Dimensions: 86 ½” L x 45 ¼” W x 33 ½” H
Warranty Information:
- Our wooden saunas are backed by a 1-year limited warranty. For Harvia sauna heaters, we offer a 1-year warranty on heating elements and a 5-year limited warranty on other components for residential use.
PRODUCT RESOURCES