Soluna Duo

Discover Sauna in a New Light. 

Soluna is an upcoming leader in translucent sauna — beautifully designed, remarkably affordable, and built to bring people together. Easy to assemble, effortless to live with, and trusted by thousands as a place for meaningful connection.

High Quality Kits Made in USA

Every Soluna is produced in-house at Soluna's U.S. manufacturing facility, backed by more than 12 years of expertise in high-quality, design-forward outdoor structures that elevate everyday living. Built by skilled American craftsmen, each kit elevates durability, beauty, and wellness in a design that lasts.

Soluna Duo — Exclusively at Superior

As a trusted partner with more than 20 years of expertise in authentic sauna craftsmanship, we've handpicked the core components to ensure that every Soluna arrives complete with expertly matched heater options, genuine sauna stones, and thoughtfully curated accessories to elevate your ritual. 

Designed for Comfort and Connection

Unlike traditional barrel or cabin saunas, Soluna’s design maximizes comfort and sensory delight:

Spacious, Light-Filled Interior

Translucent panels bathe your sauna in soft, natural light — creating an open, uplifting atmosphere. At the same time, the design preserves privacy from outside view, offering seclusion without sacrificing connection to nature.

Comfortable for Every Body

Find your perfect heat zone — closer to the steam and higher heat up top, or gentler warmth below. A functional, tiered system designed for everyday adaptability and ease of use.

A light-filled 3-6 person backyard sauna designed for daily rhythm, rest, and reconnection.

Ventilation

Fresh air intake and exhaust vents work seamlessly with the heater to promote natural airflow and breathability, eliminating CO2 and keeping the sauna comfortable. 

Please note that the images are of prototypes, some minor features are subject to change and improved

Wood-fired or Electric Options

Available in wood-fired or electric configurations, Soluna Duo offers flexibility without compromise — whether you prefer the aroma and intensity of dry heat from a fire or the simplicity of radiant electric heat. If you live in a cold climate, we recommend a minimum output of 10 kW. For wood-fired configurations, we will share a recommended parts list for chimney components that can be purchased online or in person at a hardware store.

Materials

Built with Premium, Non-Toxic, and Sustainable Materials

Every Soluna sauna is made with purpose and care, blending durability with natural beauty.

Premium materials avoid hidden toxins (laminated woods, off-gassing finishes, poor ventilation) with high-quality thermal panels for weatherability and high temperatures without compromising air quality or comfort.

High Quality Cedar

Each Soluna sauna is built with Inland Red Cedar, selected for its natural durability, dimensional stability, and resistance to moisture and heat. Used throughout the interior and exterior — framing, doors, duckboard flooring panels, benches, wall surfaces, and touchpoints — this cedar imparts a warm tone, straight grain, and a subtle, clean aroma that enhances the sauna experience without overpowering it. The result is a material that feels grounded, timeless, and made to last, aging beautifully with use while standing up to daily ritual.

Commercial Grade Thermal Panels

Our translucent wall panels are built from premium, heat-safe materials engineered for demanding, high-temperature environments. Manufactured from non-toxic composites, they are trusted across outdoor and thermal building applications for their stability, safety, and durability. In the sauna, they hold their shape under heat, won’t off-gas harmful VOCs, and can provide passive solar heating.

Wood-fired Stove Shield & Steel Floor Plate*

Add a high-quality, rust-resistant aluminum and steel surround to your wood-fired Harvia M3 or Harvia Pro 20 configuration to deflect heat, protect the sauna, and ensure safety and durability.

For IKI stoves, the surrounding rock cage provides sufficient insulation to reduce safety distances and increase user comfort.

Dimensions

A light-filled 3-6 person backyard sauna designed for daily rhythm, rest, and reconnection.

 

• Wood-Fired Back Panel & Stove Pipe extends more than 16" from sauna wall >> consult local building codes for appropriate spacing to combustibles (structures and landscaping)
• Weight: 850 lbs
• Total Cubic Footage:  296

Schematics

 

Shipping

Flat-Packed & Ready to Go

Each Soluna Sauna is thoughtfully flat-packed and shipped directly to your site.

Details:

Lightweight & Efficient

Our modular design makes each kit easier and less expensive to move.

Lower Shipping Costs

Unlike traditional sauna kits that can cost up to $1,500 to ship (no matter if you live next door or across the country), Soluna ships for significantly less.

Nationwide Delivery*

Whether you’re in the city, at the cabin, or out on some land, Soluna can reach your location. Because Soluna ships on an oversized pallet, liftgate service may not always be available. In some cases, hand unloading may be required at delivery. Each Soluna component is designed to be lightweight and manageable, making it easy to move by hand and transport to your storage or installation site.

Reduced Footprint

A lighter, flat-packed system means fewer trucks, less fuel, and a smaller environmental impact.

Soluna proves that a sauna can be world-class in quality without the heavy burden of oversized shipping.

Freight Package Details

• Duo Sauna: 4' x 8' x 50" | 850 lbs (estimated weight without stove)

Freight Costs

• Sauna kit freight shipping averages around $1000. Reach out for an updated quote to see if you can save money once all shipping details are finalized.

• Stove and accessories ship separately and are not included in the sauna freight estimate.
  

Delivery & Scheduling

• Because Soluna ships on an oversized pallet, liftgate service may not always be available. In some cases, hand unloading may be required at delivery. Each Soluna component is designed to be lightweight and manageable, making it easy to move by hand and transport to your storage or installation site.

• Delivery may be scheduled in advance to align with your project timeline.

Install

Skip Time-Consuming Builds with Easy Assembly

With basic tools and a friend or two, most customers can fully assemble their Soluna in one to two days, depending on your chosen stove setup (wood or electric). The pre-finished timber frames fasten together cleanly, and our modular panels are engineered for intuitive installation—no contractor required.

Included With Every Duo Kit:

• Step-by-step printed + digital assembly guide

• Hardware + fasteners

• Pre-cut Flooring Panels with Drain

• Pre-assembled wall panels and door panel

• Complete door assembly with jamb, hinges, ball catch, and wood handle

• Custom-cut timber frame components (truss, cross bracers, and roof flashing trim)

• Upper and lower sauna benches

• Sauna trim (base trim, roof trim, thermal panel end caps)
  

Designed with simplicity in mind, all components arrive labeled, organized, and pre-cut for a smooth building experience.

Easy Assembly for Your Backyard Sanctuary

Designed for flexibility and ease, Soluna’s modular kits come with clear instructions and everything you need to build a premium sauna that fits your space and style. Whether you’re a DIY enthusiast or a first-time builder, we make it simple to create a wellness retreat right at home.

Durability in Harsh Elements

Soluna has been tested with a Zone 4b Minnesota snow load. If you live in an area that experiences deep and heavy snow, we recommend installing plywood over the top of the Soluna during the most snowy months. We also reccomend snow-raking your roof in the winter to avoid snow and ice buildup, which can cause the roof to sag or fail under extreme weight.

Discuss with a builder in your area familiar with local codes and regulations to determine if extra materials are necessary to protect your Soluna during extreme weather events.