We know your dream sauna or cold plunge kit is a big purchase. That’s why we partnered with Affirm to finance your purchase with interest rates as low as 0% APR.
Rates from 0–36% APR. For example, a $6500 purchase might cost $271/mo over 24 months at 0% APR. Payment options through Affirm are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. See affirm.com/licenses for important info on state licenses and notifications.
Use Your HSA/ FSA Funds to Purchase a Sauna
Unlock the potential of your HSA/FSA funds with Redwood Outdoors! To further support your investment in health and relaxation, we’ve partnered with TrueMed to make it easier for you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA) funds for your purchases.
Please double-check your shipping address at checkout—any errors may result in re-routing fees.
Once your order ships, you'll receive two tracking links to monitor its journey: one for transit to the local depot and another for final curbside delivery.
All freight orders include an “appointment required” service. Carriers will typically call ahead to schedule delivery, though some may call when already en route. If you’re unavailable at that time, you may reschedule—just note that missed deliveries without prior arrangement can result in extra fees.
Delivery timelines are estimates and may be affected by weather, carrier delays, or other unforeseen events. Shipping rates may vary over time, but you’ll always see the full cost before placing your order.
Any adult at the delivery address is considered authorized to accept the shipment.
Create your perfect at-home sauna retreat with the Duo Outdoor Sauna. Its compact minimalist design fits well into any outdoor space, perfect for transforming urban backyards or rooftop gardens into a wellness oasis.
Seating for two, this sauna is great for couples who want to create a luxurious sauna retreat.
Modern design rooted in Scandinavian tradition, this sauna heats up quickly and retains that heat ensuring you get the most out of each session.
Built from heat-treated hemlock, naturally durable and made to withstand the outdoors with minimal maintenance.
Bring the wellness benefits of heat therapy home; improve circulation, reduce stress, and enhance recovery in your own outdoor space.
Easy to assemble sauna kit; customizable with multiple heater options and plenty of accessories to build your ideal at-home sauna retreat.
Create rejuvenating sauna sessions with steam, every one of our heaters are designed to have water poured over the rocks to make a cleansing environment; made better with essential oils.
Read Product Details
Create your perfect at-home sauna retreat with the Duo Outdoor Sauna. Its compact minimalist design fits well into any outdoor space, perfect for transforming urban backyards or rooftop gardens into a wellness oasis.
Seating for two, this sauna is great for couples who want to create a luxurious sauna retreat.
Modern design rooted in Scandinavian tradition, this sauna heats up quickly and retains that heat ensuring you get the most out of each session.
Built from heat-treated hemlock, naturally durable and made to withstand the outdoors with minimal maintenance.
Bring the wellness benefits of heat therapy home; improve circulation, reduce stress, and enhance recovery in your own outdoor space.
Easy to assemble sauna kit; customizable with multiple heater options and plenty of accessories to build your ideal at-home sauna retreat.
Create rejuvenating sauna sessions with steam, every one of our heaters are designed to have water poured over the rocks to make a cleansing environment; made better with essential oils.
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.
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 in a timely manner. 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
What’s Included:
Duo Sauna (2-Person)
6kW Harvia KIP Heater with upgrade options available:
Redwood Outdoors Doormat (available only with sauna purchase)
For more details or to purchase, call 1-800-567-8036.
Product Specifications
Product Diagram
Specifications
Seating Capacity
2 people depending on the seating arrangement as well as the size and proximity of the bathers
Wood Type
Canadian Thermowood
Exterior Dimensions
62 ¾” L x 50 ¾” W x 82 ¾” H with trim installed
Weight
910 lbs
Accessories Included
Sauna rocks, light fixture, and shingles
Door
Tempered glass door included
Porch
Front step sold separately
Number of Cradles
2
Electrical Requirements
120V for lighting and 240V for heater
Light Fixture Dimensions
9" L x 9 ¼ W x 7" H
Packaging & Shipping Information
Shipping Format
Wooden crate
Shipping Dimensions
76” L x 50” W x 24” H
Heater Options & Power Requirements
We have carefully selected the very best heaters to pair with our saunas, ensuring an exceptional experience no matter which option you decide on. When making your selection, consider factors such as design, Wi-Fi versus manual control, steam type, and power requirements. Choosing the right heater is the next step in building your dream sauna oasis.
Important: All heaters must be installed by a certified electrician. We recommend obtaining at least two quotes from qualified providers.
Questions? Our Product Experts are available for help!Call us at 1-800-567-8036.
Harvia KIP
A traditional Finnish wall-mounted heater with dual manual controls, including a delay timer that can be set up to 8 hours in advance. Its split-face stones deliver gentle, classic bursts of steam.
Wattage: 6kW & 8kW
Voltage: 240V
Amps: 30A (6kW) & 40A (8kW)
Wi-Fi: Optional upgrade with the 8kW
Mounting Type: Wall mounted
Rock Capacity: 44 lbs.
Harvia Spirit
A sleek, modern heater with a curved design and Wi-Fi control. Its open-stone design holds a generous volume of stones, delivering soft, even heat and rich steam.
Wattage: 6kW & 8kW
Voltage: 240V
Amps: 30A (6kW) & 40A (8kW)
Wi-Fi: Standard
Mounting Type: Wall mounted
Rock Capacity: 99 lbs.
Harvia Virta
Our most powerful heater, built for frequent use and exceptional performance. This heater delivers steady heat and abundant steam with the added convenience of Wi-Fi control.
Wattage: 8kW & 10.5kW
Voltage: 240V
(10.5kW 208V 3-phase commercial model available upon request)
Amps: 40A (8kW) & 50A (10.5kW)
Wi-Fi: Standard
Mounting Type: Floor standing
Rock Capacity: 132 lbs. (8kW) & 176 lbs. (10.5kW)
Homecraft Revive
The largest heater in our Homecraft lineup, built for the ultimate sauna experience. Producing powerful, consistent heat and generous steam when water is poured over the stones.
Wattage: 9kW
Voltage: 240V
Amps: 50A
Wi-Fi: Currently unavailable
Mounting Type: Floor standing
Rock Capacity: 220 lbs.
Homecraft H-Series
Built for both performance and dependability; offering a balance of power and refined design. Engineered for efficient heat distribution, simple controls and light bursts of steam.
Wattage: 9kW
Voltage: 240V
Amps: 50A
Wi-Fi: Currently unavailable
Mounting Type: Wall mounted
Rock Capacity: 44 lbs.
Warranty Information
Our 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. For Homecraft sauna heaters, we offer a 2-year limited warranty for residential use.
Redwood Outdoors saunas and cold plunge tubs are shipped using freight delivery to ensure safe, secure transport from our warehouse to your home. Below is everything you need to know about shipping and what to expect on your delivery day.
How Redwood Outdoors Products are Shipped
Our saunas and cold plunge tubs are shipped in durable wooden crates designed to protect the product during transit.
With the shipment of a sauna, the heater, rocks and accessories will either arrive in a box strapped to the top of your crate or arrive separately.
We partner with multiple trusted freight carriers to ensure your order arrives safely and efficiently at your curbside.
Once your shipment leaves our warehouse,you’llreceive an email with a trackingnumber and link to follow your delivery.
Ifyou’veordered multiple large products—such as a sauna and a coldplunge—they may arrive in separate shipments.
Freight Delivery
Our shipments are delivered by a large freight truck, typically equipped with a liftgate. This allows the carrier to lower the crate to ground level upon arrival.
If your delivery location has limited access for large trucks—such as steep, unpaved, gated, or restricted roads—please contact our customer service team before shipment so we can review access requirements and help you prepare.
Delivery Day
Your shipment is on the way, here'show to prepare.
Once your order arrives at the carrier’s local depot, they will contact you to schedule a delivery appointment.
Appointments are typically scheduled within 2–3 business daysof arrivalatthe depot.
Pleaseensure thatsomeone is available to receive andsignfor the deliverywhen it arrivesat your home.
If your heater is shipped separately, a signature will be required for that shipment as well.
Allfreightshipmentsarecurbside delivery, meaning the crate is placed at the end of your driveway or nearest accessible location.
For liability reasons, freight carriersareunable tomove shipments beyond the curb or into backyards, garages, or other areas of the property.If you need help relocating your crate after delivery, we recommend arranging assistance in advance.
Questions about shipping or delivery?
Please contact us.Our customer support team is happy to help.
Our saunas are built for easy DIY installation, with no cutting, modifications, or special skills required.
Each kit includes pre cut, interlocking panels that fit together precisely, allowing you to assemble your sauna
in just a few hours using basic construction skills.
Every sauna ships with a printed assembly manual inside the crate, tailored specifically to your model.
If you’d like to preview the process ahead of time, digital assembly manuals and assembly videos are available online
here.
Because our sauna designs continue to evolve, always follow the printed instructions included with your sauna
during installation.
Before You Begin Your Sauna Installation
Review Instructions and Gather Supplies
Before starting your sauna build, carefully read through your assembly manual and gather all necessary supplies.
Recommended Tools
Sauna assembly requires common household tools, including:
Power drill with T20 ("torx") bit
Rubber mallet
Hammer
Two adjustable wrenches
Measuring tape
Level
Choose the Right Location
Select a stable, level location with sufficient clearance for assembly and access.
Be sure the area allows for proper drainage and is within reach of your electrical connection.
Thoughtful site selection helps ensure safe operation and long term durability.
Check Local Building Requirements
Depending on your location, a building permit or HOA approval may be required.
Always check local regulations before starting installation.
Hire an Electrician
A trusted licensed electrician must be hired to install your sauna heater.
Sauna heaters do not plug into standard outlets and must be hardwired to your electrical panel.
Build a Solid Foundation
A solid, level base is essential for the longevity and performance of your sauna.
Recommended foundation types include:
Concrete pad or concrete footings under each sauna cradle
Solid deck or reinforced platform
Compacted gravel base
Level stone or paver patio
The foundation must support the full weight of the sauna and all occupants.
Assembling Your Sauna
Preparing for an Efficient Install
Before assembling:
Read through the entire assembly manual and watch the assembly video
Verify all pieces in the sauna kit using the parts list included in the manual
Lay out the pieces in sections by the steps listed in the manual to streamline the assembly process
Putting the Sauna Together Piece by Piece
The following is a general overview of the sauna building process.
Our sauna designs are always evolving, so please refer to your sauna assembly manual when you are ready to build.
Our customer support team is available to assist with questions before, during, or after installation.
Sauna came quickly. Easy to fallow instructions built by myself in a couple of hours. Kip heater heats sauna quickly. Quality component, as of now couldn’t be happier with the quality and performance of this Redwood sauna.
T
T Miller
Good design
Good design. Instruction manual could be clearer about use of roof spacer(s). Poor quality screws (easy to strip). Qty of type E and F screws not sufficient. Two people can build in one day.
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