Thermory 50 Series Barrel Sauna Kit

A compact Thermo-Spruce barrel sauna in three lengths, for two, four or six. Choose panoramic rear glass or a solid wood back, then your heater package. Our build videos and installation support help you put it together.

Build Your Quote:

Price range: $5,066.00 through $6,633.00

Choose your barrel sauna

Sauna price shown. Heater, lighting and bench options are itemized below.

Add a heater

Both Bens have a steady rotation of heaters at home. Call, text, or chat at (844) 565-1113 if you want help picking. All heater packages include rocks and shipping. We’ll spec the right kW for your barrel size.

None HUUM DROP with WiFi Enabled UKU Controller Package +$3,269.00 HUUM DROP with WiFi Enabled UKU Controller PackageWall-mounted UKU display, plus remote control by app over Wi-Fi. The HUUM app is free with the Wi-Fi package. Harvia KIP Black with Built-in Controls (Simplest) +$1,200.44 Harvia KIP Black with Built-in Controls (Simplest)Turn the heater on with the 1-hour timer knob at the bottom of the heater. A separate thermostat knob sets the temperature. Automatically shuts off after 1 hour. Harvia KIP Black with WiFi Enabled Harvia Wall Mounted Controller Package +$2,268.50 Harvia KIP Black with WiFi Enabled Harvia Wall Mounted Controller PackageWall-mounted display, plus remote control by app over Wi-Fi. The MyHarvia for Xenio app is free. Harvia Spirit with WiFi Enabled Fenix (Latest) Controller Package +$3,108.80 Harvia Spirit with WiFi Enabled Fenix (Latest) Controller PackageWall-mounted touchscreen display, plus remote control by app over Wi-Fi. Free MyHarvia 2 app; Harvia charges $99 one time for the remote-control license after a 3-month trial.
LED Light Kit
None ProSaunas Under bench and behind backrest lighting. Can be powered by 110v outlet or hardwired to heater contactor box. +$298.35

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Choose the space that suits you

Same round sauna. Your choice of layout.

The rear window opens the view to your yard. A solid wood back gives you more privacy. The 50 Series comes in three lengths, with rear glass or a solid wood back.

50 Series model comparison
ModelPeopleOverall lengthPorchRear wall
No. 50688″No porchPanoramic glass
No. 51688″No porchSolid wood
No. 52472.2″No porchPanoramic glass
No. 53472.2″No porchSolid wood
No. 54258.7″No porchPanoramic glass
No. 55258.7″No porchSolid wood

Use the selected model’s installation drawing to lay out the foundation and clearances.

Choose your model ↑

A closer look inside

Two benches. Room to settle in.

The 50 Series has a bench along each side and a clear central aisle. Choose the length for the way you like to sauna, with room to sit together or stretch out.

It uses the standard bench layout shown here. For the optional raised kit with a separate lower foot bench, compare the larger 60 Series.

See the 60 Series raised benches →
Standard two-sided Thermory barrel benches with a clear central aisle
The standard two-sided barrel bench layout.

Built it. Learned from it.

Watch us build a No. 60.

Our three-part barrel build follows the job from the base to the benches and porch. Use it alongside the installation manual for your model. We’re here for the questions that come up as you build.

Preparing the base for our Thermory barrel build01 · Base & cradles ↗Assembling the barrel staves and end walls02 · Walls & staves ↗Installing the rain jacket, bands, benches and porch03 · Roof, benches & porch ↗

Before the shipment arrives

Give your sauna a good start.

A firm, level base

Support the cradles on a level foundation that keeps the wood off the ground. Check the pad before assembling the shell; an uneven base can affect the door.

Delivery & assembly

Plan the truck access, unloading and route to the foundation. The kit arrives as components for assembly. We can help you work through the delivery details.

Heater & electrical

You choose the heater package. Match it to the exact model, rear glass and electrical supply, then have your electrician follow the heater and controller manuals.

What comes with your sauna

Barrel shell and end walls, glass door, benches and supports, cradles, stainless bands, fitted rain jacket and assembly hardware. Porch and rear-window components follow the model you choose. Sauna Marketplace barrel packages include a matching flat floor grate.

Heater, controls, stones, lighting and raised-bench options follow your itemized quote. Foundation work, assembly and electrical installation are separate.

Good questions

Know what you’re choosing.

Does the 3D preview match my quote?

Your model and supported raised-bench selection drive the preview. It shows the sauna and bench layout; heaters and lighting are not modeled. Your itemized quote lists the selected equipment.

What is the rain jacket for?

The fitted jacket covers the barrel roof and sheds rain. Install it with the finishing pieces shown in your exact model’s manual.

Should I choose rear glass or a solid wall?

Rear glass brings in light and the view. A solid wall gives more privacy. The glass also affects heater sizing, so include it when planning the heater package.

Can you help with the build?

Yes. Use our build videos and the model’s documents, and ask us about the foundation, assembly, heater and delivery. Our support continues after the shipment arrives.

Keep the right documents together

Your installation guides.

Start with the manual for the model on your quote. Use the separate two-tier guide when installing the raised bench kit.

Two-tier bench installation guide ↗

People you can ask

Let’s get your setup right.

Bring your measurements, delivery questions and heater plans. We’ll help you put the details together.

Expert help that stays with you

Small details become expensive problems once installation begins. We ask the questions early, so a mismatched part, an overlooked requirement or an installation issue gets caught while it is 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 built saunas from the crate up and both run saunas at home. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
Exterior Shortest Side (in)60.2, 73.9, 77.5
Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.77.5, 89.6
Exterior Height (in)Maximum exterior height from earth to roof peak80.3
Bench Length (in)Maximum bench length in inches.47, 59, 76
Volume (cu ft)Not adjusted for glass or insulation.124, 154, 200
Adjusted VolumeUsed for accurately sizing heaters while adjusting for materials like glass. Typically we want a heater with the top-end of it\'s recommended range just above this number. Please contact Sauna Marketplace for details or specific questions.186, 230, 300
SizeThermory No 50 – 88″ Long W/ WINDOW, Thermory No 51 – 88″ Long, Thermory No 52 – 71″ Long W/ WINDOW, Thermory No 53 – 71″ Long, Thermory No 54 – 59″ Long W/ WINDOW, Thermory No 55 – 59″ Long
Warranty2 years
MaterialsThermo-Spruce
Made in
Model50 Series
Weight (lbs)1103, 1102, 1191, 1279, 1301, 1433, 1389, 1444, 1522, 1532
Bench Depth (in)19, 25
Total Bench Length98, 120, 156
Capacity2, 4, 6
Interior MaterialsThermo-Spruce
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.
People2, 4, 6
Wi-Fi OptionYes
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!
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.
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.
Base Footprint Longest Side (in)77.5, 89.6
Base Footprint Shortest Side (in)60.2, 73.9, 77.5
Glass LocationBack wall: window, Glass door
Door WallLong side, Short side
Attachments
Gallery
Thermory No 50 Series Diy Barrel Sauna Kits With Optional Back Window No 50 No 51 No 52 No 53 No 54 No 55 On Sauna Marketplace
Thermory Barrel Sauna 50S Series Spacious Interior
Thermory Cozy Barrel Sauna | 50 Series - Image 3
Thermory No 55 Barrel Sauna With Wood Wall
Thermory Cozy Barrel Sauna | 50 Series - Image 5
Thermory Cozy Barrel Sauna | 50 Series - Image 6
Thermory Cozy Barrel Sauna | 50 Series - Image 7
Thermory Cozy Barrel Sauna | 50 Series - Image 8
Thermory No 54 Barrel Sauna Front Corner
Rethink Your Relaxation Thermory Barrel Sauna
Thermory Cozy Barrel Sauna | 50 Series - Image 11
Easy Assembly Barrel Sauna
Thermory Cozy Barrel Sauna | 50 Series - Image 13
Thermory Cozy Barrel Sauna | 50 Series - Image 14
Thermory Sauna And Siding
Watch video
    Includes

    Thermory 50 Series Barrel Saunas on Sauna Marketplace include a flat floor kit, rain jacket, and manufacturer warranty.

    Not Included: We recommend treating the exterior with HempShields to lock in the warm color.