Thermory Square No 45 1 Person Outdoor Sauna Kit
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Inside With Homecraft Revive Slim
Thermory Square No 45 1 Person Outdoor Sauna Kit Bench Dimensions
Thermory No 45 Tiny Outdoor Sauna Kit
Smallest Outdoor Sauna Kit - Thermory No 45
Thermory Square No 45 | 1 To 2 Person Outdoor Sauna Kit - Image 7
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Back
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Front
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Right Side
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Profile Picture
Click to enlarge
Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
DIY FriendlyDIY Friendly Saunas means a professional is not required for the build. Basic tools like a drill, hammer, and level are typically required. With Sauna Marketplace, you do not risk your warranty by assembling a sauna yourself. If you prefer a professional installation, please reach out to the Sauna Marketplace team so we can check for a trusted installer near you.Yes*An electrician is still required for all electrical work!
Exterior Shortest Side (in)53
Exterior Height (in)Maximum exterior height from earth to roof peak87
Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.56
Exterior MaterialsThermally Modified SpruceThermal Modification of wood is a natural process using heat and steam in a vacuum to alter wood at a cellular level. When done right, it makes the wood significantly more durable, stable, and longer lasting. Thermo-Spruce is darker than raw spruce wood, closer in color and performance to Western Red Cedar.
InsulationSingle Layer of WoodWhile the R-Value is much lower than an insulated wall, saunas made with a single layer of wood have good thermal mass and can easily dry to the interior and exterior.
Made in
Wi-Fi OptionYes
Warranty2
Shipping MethodLTL Curbside Delivery w/ Lift Gate ServiceOur shipping partners will deliver your sauna curbside. They are not responsible for moving it into the garage or final location, so please plan to offload the crate yourself. Larger crates may require a forklift or loading dock. Please contact Sauna Marketplace to plan for a smooth delivery and installation.
People1, 2
ModelMini Square
Attachments
Legacy manuals for older installations

Use these only when the document revision matches the installed product.

Gallery
Thermory Square No 45 1 Person Outdoor Sauna Kit
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Inside With Homecraft Revive Slim
Thermory Square No 45 1 Person Outdoor Sauna Kit Bench Dimensions
Thermory No 45 Tiny Outdoor Sauna Kit
Smallest Outdoor Sauna Kit - Thermory No 45
Thermory Square No 45 | 1 To 2 Person Outdoor Sauna Kit - Image 7
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Back
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Front
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Right Side
Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Profile Picture
Click to enlarge

    Thermory Square No 45 | 1 to 2 Person Outdoor Sauna Kit

    50 Series 60 Series Medium Square Mini Square Square

    The most compact, practical 1-person outdoor sauna kit we’ve ever seen. Thermory Square No 45 redefines what’s possible for a small sauna. This sauna can last a lifetime with thermally modified Nordic Spruce wood that resists warping, cracking, decay that degrades standard outdoor sauna kits.

    Build Your Quote:

    50 Series 60 Series Medium Square Mini Square Square

    $5,478.00

    Heater
    None HUUM Steel Package with WiFi Enabled UKU Controller +$4,566.00 Homecraft Revive Slim with Wall Control +$2,631.00

    Share your selected heater size and add-ons. Prices and availability are confirmed when the link is opened.

    Zero Interest Payments:

    Buy Now, Pay Later with premium financing packages only available on Sauna Marketplace.

    Pay with HSA/FSA:

    We teamed up with FLEX to make HSA/FSA payments easier than ever.

    Thermory

    Extend your entertainment area with the ultimate relaxation destination. The Thermory 45 Series square can bathe one to two people in heat and steam. It’s small footprint and efficient design make it perfect for those with limited space, offering a spa-like escape in the comfort of your home. Plus, the 45 comes with a rain jacket for all-weather protection.

    Specs:

    Length:4.6′Back Bench Length:3.9′
    Width:4.4′Back Bench Width:1.66′
    Height:7.28′Volume:98 CU. FT.
    Window:N/AHeater:5KW
    Side Bench Length:2.0′Board Thickness:1.57″
    Side Bench Width:0.91′
    Thermory Square 40 41 42 43 44 and 45 Options and Specs

    No45 Sauna Square

    A personal wellness retreat, beautifully designed for limited spaces.

    The No45 Sauna Square brings the traditional Finnish sauna experience to your home in a compact, elegant package. Crafted with Thermory's premium thermally modified wood, this freestanding sauna fits perfectly on balconies, porches, or garden spaces, offering a private sanctuary wherever you need it most.

    Design

    Compact Luxury

    The No45 features clean, modern lines and a panoramic window that creates an open, airy feel while maintaining privacy. The thermally modified Thermo-Spruce exterior and Thermo-Aspen interior not only provide beauty but exceptional durability against the elements.

    Perfect for Small Spaces

    With dimensions of just 55.5" × 52.4" × 87.4" (L × W × H), the No45 Sauna Square is our smallest sauna, designed specifically for limited spaces without compromising on the authentic sauna experience.

    Features

    Space-Efficient Design - Fits perfectly in smaller areas like balconies and porches.

    Quick Assembly - Easy to set up, bringing the sauna experience to your home faster.

    Energy Efficient - Designed to maintain heat effectively, reducing operational costs.

    Built for Two - Comfortably accommodates 1-2 people with thoughtfully designed interior benches.

    Homecraft Revive Slim 5kW Heater.  Want to push temps into the 190°s and beyond?  Consider a HUUM STEEL Mini or HUUM CLIFF Mini.  

    Powerful heating in a compact design, perfect for quickly reaching optimal sauna temperatures.

    Premium Weather Protection - Included PVC rain jacket with trim provides additional protection in wet weather conditions.

    DIY Friendly - All Thermory Squares are designed for easy DIY assembly with 1-2 people in a day.  Want to have it built for you?  Contact Sauna Marketplace to see if we have builder in your area.  

    Specifications

    Dimensions

    Exterior (L × W × H): 55.5" × 52.4" × 87.4"
    Interior: 31.5" × 24.5" × 11"
    Door: 47.5" × 20"
    Wall Thickness: 1.575"
    Packing Dimensions (H × W × L): 31.1" × 43.5" × 82.3"
    Volume: 98 Cubic Ft

    Materials

    Exterior: Thermally modified Thermo-Spruce
    Interior, Flooring & Benches: Thermally modified Thermo-Aspen

    Technical

    Heater: Homecraft Revive Slim 5kW
    Weight: 1000 lbs
    Shipping Weight: 992 lbs
    Assembly: DIY installation (guide included)

    Included Components

    Manuals
    Cradles
    Body staves
    Wall panels
    Panoramic window
    Wooden trims
    Glass front door with handle
    Front panels with glass
    Interior benches
    Backrest staves
    Duckboard flooring
    Fasteners
    Metal bands
    Porch benches
    PVC rain jacket with trim

    Durability

    Your Thermory Sauna Square's thermally modified wood is built to withstand the elements for up to 25 years. The included rain jacket provides additional coverage in wet weather, ensuring your sauna remains beautiful for years to come.

    Warranty & Shipping

    2-Year warranty
    Ships palleted via LTL freight
    DIY Friendly, ask about the Sauna Marketplace Builder Network to have it built for you.

    Why No45 Sauna Square?

    Experience the ultimate in personal wellness with the No45 Sauna Square. Its small footprint and efficient design make it perfect for those with limited space, offering a spa-like escape wherever you need it most.

    Expert help that stays with you

    Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

    Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

    We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

    Sauna and heater customers also receive free shipping on sauna accessories for life.

    Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

    Specs
    DIY FriendlyDIY Friendly Saunas means a professional is not required for the build. Basic tools like a drill, hammer, and level are typically required. With Sauna Marketplace, you do not risk your warranty by assembling a sauna yourself. If you prefer a professional installation, please reach out to the Sauna Marketplace team so we can check for a trusted installer near you.Yes*An electrician is still required for all electrical work!
    Exterior Shortest Side (in)53
    Exterior Height (in)Maximum exterior height from earth to roof peak87
    Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.56
    Exterior MaterialsThermally Modified SpruceThermal Modification of wood is a natural process using heat and steam in a vacuum to alter wood at a cellular level. When done right, it makes the wood significantly more durable, stable, and longer lasting. Thermo-Spruce is darker than raw spruce wood, closer in color and performance to Western Red Cedar.
    InsulationSingle Layer of WoodWhile the R-Value is much lower than an insulated wall, saunas made with a single layer of wood have good thermal mass and can easily dry to the interior and exterior.
    Made in
    Wi-Fi OptionYes
    Warranty2
    Shipping MethodLTL Curbside Delivery w/ Lift Gate ServiceOur shipping partners will deliver your sauna curbside. They are not responsible for moving it into the garage or final location, so please plan to offload the crate yourself. Larger crates may require a forklift or loading dock. Please contact Sauna Marketplace to plan for a smooth delivery and installation.
    People1, 2
    ModelMini Square
    Attachments
    Legacy manuals for older installations

    Use these only when the document revision matches the installed product.

    Gallery
    Thermory Square No 45 1 Person Outdoor Sauna Kit
    Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit
    Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Inside With Homecraft Revive Slim
    Thermory Square No 45 1 Person Outdoor Sauna Kit Bench Dimensions
    Thermory No 45 Tiny Outdoor Sauna Kit
    Smallest Outdoor Sauna Kit - Thermory No 45
    Thermory Square No 45 | 1 To 2 Person Outdoor Sauna Kit - Image 7
    Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Back
    Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Front
    Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Right Side
    Thermory No 45 Square Mini 1 Person Outdoor Sauna Kit Profile Picture
    Click to enlarge

      PLAN THE WHOLE SAUNA

      The room and heater still have to work as one system.

      Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.

      Compare sauna heaters

      See electric sauna heaters by output, stone mass, control style, and installation type. Size from adjusted room volume, not floor dimensions alone.

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      Shop complete saunas

      Explore indoor and outdoor saunas when you are planning beyond one component. Starting with the room makes heater size, controls, and accessories easier to get right.

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