Redwood Outdoors Summit – 6 Person Sauna-Fast Shipping

Description

Minimalist looks but big on size the Summit Outdoor Sauna is a spacious addition to any outdoor relaxation retreat. The two large windows in the front of the sauna flood the space with serene natural light while you stay warm in your sauna sanctuary. Sit back and indulge in a luxurious wellness oasis in your own backyard.

• Modern design rooted in Scandinavian tradition; this sauna heats up quickly and retains that heat ensuring you get the most out of each sauna session.
• With seating for up to 6 people, this outdoor sauna is ideal for group sessions, families and friends; more room to lounge and stretch.
• 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.

Product Details

Indulge in a refined take on Scandinavian design with the Summit Outdoor Sauna – a spacious, beautifully crafted unit built for comfort, performance, and style. Made from sustainably sourced hemlock and treated with our heat treatment process to enhance durability, ensuring lasting beauty in all climates. Each Summit is built to elevate your wellness routine, with a spacious interior offering extra headroom and room for 6 people to comfortably experience luxurious heat therapy. With its clean, minimalist lines, this sauna invites relaxation and transforms your backyard into a serene retreat.

Built to Last & FSC® Certified

The Forest Stewardship Council® (FSC®) sets the global benchmark for responsible forest management. When you see the FSC® certification on our products, it means the wood was sourced from forests that are managed to the highest environmental and social standards—protecting biodiversity, respecting the rights of Indigenous communities, and ensuring long-term forest health.

Choosing FSC®-certified products is one way we’re helping customers invest in both wellness and sustainability.

True Scandinavian Sauna Experience

Enjoy the authentic heat of a traditional sauna in under an hour. Whether you prefer dry heat or steam, the Summit delivers a versatile sauna experience that promotes relaxation, improves circulation, and supports muscle recovery—making it easy to unwind whenever you need it.

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:

• Summit Outdoor Sauna (6-Person)
• 6kW Harvia KIP heater, with upgrades available:
  • 8kW KIP
  • 6kW Spirit
• Sauna Rocks
• Shingles
• Towel Peg
• Bulkhead Light
• Redwood Outdoors Doormat (available only with sauna purchase)
• Traditional Felt Sauna Hat (1)

Product Specifications

Product Diagram

Specifications

Packaging & Shipping Information

Manuals

Sauna Maintenance

Heater Options & Power Requirements

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.

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.

About Our Heat-Treated Lumber

Made of Hemlock

Hemlock is an exceptional material for building saunas; highly regarded for being strong, durable, and moisture resistant. In hot environments, hemlock remains cooler to the touch and retains heat more effectively than cedar. All the hemlock used in our saunas is sourced from responsibly managed forests in Canada that adhere to strict environmental and social standards.

Heat-Treated for Exceptional Durability

Our hemlock undergoes a specialized thermal modification process to increase durability. This three-phase process begins with kiln-drying the wood, followed by heating it to temperatures above 400°F (204°C), finished by slowly cooling through a controlled steaming process. This procedure changes the wood on a cellular level, compressing its internal channels to create a denser structure. The result is a stronger material that is better protected against damage from environmental factors such as weather and insects. The natural moisture resistance of hemlock is also enhanced, minimizing swelling and warping over time.

Heat-treated hemlock lasts longer with minimal maintenance needs, so you can enjoy your sauna for many years to come.

All Natural, Built to Last

Our thermal modification process relies solely on heat and water—no chemicals involved. This technique increases the lifespan of your wood naturally, without the use of any additives.

Minimal Maintenance

Exterior Sauna Maintenance

Heat-treated hemlock is highly durable; no stain or sealer is required to maintain your sauna’s structural integrity. Left untreated, the wood will naturally weather to a rustic grey over time due to sun exposure, without losing its strength.

A water-based stain can be used to maintain or change your sauna’s exterior color. Note: stains should never be used inside the sauna.

Interior Sauna Maintenance

Our heat-treated hemlock is built to withstand the hot and humid sauna environment; no sealers are required on the interior walls. In high-traffic areas such as benches and floors, applying a protective treatment is recommended to guard against dirt, sweat, and body oils.

Recommended interior treatment options include:

• Sauna grade paraffin oil – only a light coating on the benches and floor is needed, preserving the deep natural color of the wood. We recommend sauna safe Harvia Paraffin Oil.
  Note: only use sauna-grade paraffin oil.
• Supi Sauna Wax – a nontoxic treatment safe for walls, floor, ceiling and benches; Supi Sauna Wax is available in three different finishes: clear, black, and white.

Sauna Heater Maintenance

Sauna heaters require little maintenance. Simply cleaning the heater and taking care of the rocks will keep your heater running in peak condition for years to come.

To maintain your heater, follow these easy steps:

• Periodically wipe the exterior of the heater with a soft cloth and use a mild cleanser to remove any water spots if needed—we recommend Harvias Heater Cleanser.
• Every 6 months, restack and inspect your heater stones. As you pull out the stones, look for cracks, chips and excessive wear. Remove and replace any damaged stones.
  Rinse the stones with warm water, lightly scrubbing any that might have slight calcium build up, letting them air dry before restacking in the heater.
• After 1 to 2 years, replace your heater stones. For heaters that use split-face stones, upgraded options are available, like vulcanite stones for better steam or the longer-lasting elite pro stones.

Delivery Day: What to Expect

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’ll receive an email with a tracking number and link to follow your delivery.

If you’ve ordered multiple large products—such as a sauna and a cold plunge—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’s how 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 days of arrival at the depot.
• Please ensure that someone is available to receive and sign for the delivery when it arrives at your home.
  • If your heater is shipped separately, a signature will be required for that shipment as well.

All freight shipments are curbside delivery, meaning the crate is placed at the end of your driveway or nearest accessible location.

• For liability reasons, freight carriers are unable to move 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.

Support & Warranty

Questions? We Have Answers.

At Redwood Outdoors, when you call, a real person is here to help. Our US-based, knowledgeable support specialists are ready to answer any question, big or small. Whether you need advice about how to set up your new sauna or how to care for your sauna after it is built, our team of experts has the answers.

Warranty

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. For Homecraft sauna heaters, we offer a 2-year limited warranty for residential use.

Assembly & Manuals

Easy DIY Sauna Installation

Designed for Hassle Free Assembly

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.

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Add-On Accessories

Outdoor Shower

Upgrade your backyard with a premium thermowood outdoor shower, expertly designed to enhance your sauna experience.

• Seamless Integration: Designed to complement the aesthetic of any Redwood Outdoors product, this shower adds charm and functionality to your outdoor space.
• Convenient Rinsing: Perfect for rinsing off after sauna sessions, keeping your experience refreshing and enjoyable with two shower head options!
• Easy Installation: Effortlessly connects to any standard outdoor water hose for quick setup, allowing you to enjoy your shower in no time.
• Natural Wood Finish: Made from durable hemlock thermowood, each piece is sealed with a linseed-oil–based primer that enhances weather resistance while showcasing the wood’s natural beauty. Can be stained to match any aesthetic.
• Slip-Resistant Flooring: Features a grooved thermowood floor for added safety and comfort, providing stable footing even when wet.

Specifications

Sauna Starter Kit

Elevate your sauna experience with our Sauna Starter Kit—the perfect companion for relaxation and rejuvenation. This thoughtfully curated set includes a classic wooden bucket and ladle for pouring steam, a thermometer/hygrometer to monitor heat and humidity, and a sand timer to help you track your session. Everything you need for a more authentic, soothing sauna ritual—all in one convenient kit.

Your Purchase of a Sauna Starter Kit Includes:

• Wooden Bucket
• Wooden Ladle
• Thermometer/Hygrometer
• Sand Timer

Black 5″ Dial Thermometer/Hygrometer

Monitor the temperature and humidity levels of your sauna easily with the combination Thermometer and Hygrometer. This black 5-inch dial with white lettering is easy to read with temperature being marked on the top half of the dial and humidity on the lower half. Easy to install, works great in any size sauna, great in smaller saunas. Get the greatest benefits from heat therapy and make the ideal setting for your relaxation ritual.

Key Features:

• Black 5-inch dial with white lettering is easy to read, measuring the temperature in Fahrenheit on the top half and the bottom half measuring humidity, easily to read anywhere in the sauna.
• Built to last in the hot and humid conditions in any sauna.
• Great addition to any wellness routine, maximize the benefits of heat therapy by creating the proper conditions for recovery and relaxation.
• Easy to install, mount the thermometer at shoulder height when sitting in your preferred spot inside of the sauna, away from a direct heat source.

Minimalist Bucket & Ladle

Elevate your sauna experience with the refined Minimalist Bucket and Ladle, available in bronze or bold black. Designed with clean lines and a timeless aesthetic, this set blends style and functionality with ease.

Key Features: