Best Price and Service Guarantee

Sauna Marketplace offers legendary customer service and support. Odds are you landed here from a referral — because we don’t advertise.

That doesn’t mean you should have to pay more. We always honor the lowest prices allowed by our manufacturers. If you find a lower advertised price from an authorized dealer, send us a screenshot and we’ll match it.

We want you to feel great about your purchase for decades. That’s why we also offer free shipping on sauna accessories for life with the purchase of any sauna or sauna heater on Sauna Marketplace.

Shop Saunas | Shop Sauna Heaters

Specs
Exterior Shortest Side (in)59, 72, 76
Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.76, 88
Exterior Height (in)Maximum exterior height from earth to roof peak79
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
Warranty5
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
Capacity4, 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.
People4, 5, 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.
Attachments
Gallery
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.

Thermory Cozy Barrel Sauna | 50 Series

Get America’s most loved barrel sauna by the global leader in sustainable thermal modification. The Thermory 50 series is built to outlast and outperform cedar saunas at an affordable price. The quality is undeniable and requires less maintenance than conventional barrel saunas.

The Thermory 50 Series consists of 3 sizes – each with an optional half-panoramic window in the back. They are the little brother to the more spacious Thermory 60 Series, but still have enough room to stand, stretch, and safely move around.

The flat, 19″ benches are great for laying down or putting your feet up. All Thermory barrel saunas come with a rain jacket and flat floor kit. The 50 Series ships quickly from Thermory USA outside of Buffalo, NY.

For the larger 60 series Thermory Barrel Saunas with porch option, click here.

Build Your Quote:

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

Add a heater

We’ve tried and tested it all. 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 Harvia KIP Black with Built-in Controls (Simplest) +$1,200.44 Harvia KIP Black with WiFi Enabled Harvia Fenix (Latest) Wall Mounted Controller Package +$2,168.50 Harvia Spirit with WiFi Enabled Fenix (Latest) Controller Package +$3,108.80
LED Light Kit
None ProSaunas Under bench and behind backrest lighting. Can be powered by 110v outlet or hardwired to heater contactor box. +$298.50

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Pay with HSA/FSA:

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Designed to thrive in wet, snowy, or desert climates - the Thermory Barrel Sauna Kit outperforms and outlasts barrel saunas that use unmodified wood.

Stocked in the USA, these premium barrel saunas come from Northern Europe where thermal modification of wood is common, and they are VERY good at it.

Thermory is a global leader in the thermal modification of wood with factories in Estonia and Latvia. After X-raying for imperfections, then perfectly milling the boards to European standards, the boards go through the thermal modification process.

This involves placing the wood through a vacuum with low oxygen, temperatures around 400°F, and specific humidity to make the Nordic Spruce completely stable and more durable than cedar.

The process also darkens the wood and removes VOCs.

The list of benefits is long...

  • Beautiful
  • Moisture and Rot Resistant
  • Environmentally Friendly
  • Healthier to Breathe (Removes VOCs)
  •  Durable

Here’s one of their processing plants in Estonia:

Thermory Thermal Modification Plant - how it's done

This process along with expert design results in the Thermory Barrel Sauna Kit, the ultimate outdoor barrel sauna designed to endure the harshest environments.

Now you can relax, refresh, and reconnect with friends and family knowing you made a wise investment that will provide years of wellness.

Trust us, you’ll want this new wellness routine of yours to last.

Put it on any flat, hard surface.  We recommend a concrete pad or deck but pavers or a gravel bed work well too.

Thermory’s design team has meticulously crafted this barrel sauna to overcome common issues found in other barrel saunas. With a spacious interior, innovative insulation, and more substantial boards, all Thermory Barrel Sauna Kits ensure a superior seal and comfortable sauna experience.

The kit comes with pre-milled materials and a user-friendly proprietary construction process, making installation a breeze.

Watch Us Build a Thermory Barrel Sauna!

Playlist

2 Videos

Five years.  Find the Thermory barrel sauna warranty terms here.    

During Use

  • Only throw water on the heater, not on the walls or benches.
  • Don’t wear wet swimsuits in the sauna, as water from these will damage the bench.
  • To keep the bench fresh, we recommend using seat covers – these can also make it more comfortable to sit on the bench when it is hot.
  • Keep an eye on the heating stones, as they may crack over time – whenever necessary, they can be replaced or more stones can be added.

After Each Use

  • Wipe the benches with a clean, damp washcloth – don’t use running water to clean them to help prevent excess water from pooling on the wooden surfaces.
  • Use appropriate cleaning products for the benches and other wooden components, reading the instructions first.
  • After cleaning your sauna, allow the surfaces to dry and ensure that the room is well ventilated – we recommend leaving the heater on for at least half an hour with the air vent open and the door and windows closed.
  • If possible, lift up the benches to allow them to dry better.

At least once each year

  • Treat the wooden surfaces with a sauna-appropriate product – this should be done more frequently if the sauna receives intensive use.
  • Clean all surfaces of the seating materials, walls and ceilings using a soft brush or cloth and a specialist cleaning product, following the instructions on the packaging.
  • For deeper stains and soiling, gently clean the bench using a fine sandpaper before treating the sanded surface with a sauna-appropriate wood preservative.
  • Avoid using cleaning agents that are unsuitable for saunas – for example, disinfectants bleach the wood and can spoil its surface.
  • Inspect the fastenings on the benches and supports, tightening any screws if necessary; they may loosen over time due to changes in the wood caused by heat and humidity.

Things to avoid

  • Don’t dry textiles in your sauna, as this can be a fire hazard – excessive moisture can also damage the surface of the wood.
  • Avoid heating the sauna beyond the maximum temperature specified by the heater manufacturer – excessive heat may create a fire risk or cause the wood to warp.
  • Never use a pressure washer or running water when cleaning your sauna, as excessive moisture can permanently damage the structure and surface of the wood.

How Wood Changes in the Sauna

  • Wood is a natural material, and its surface may crack or bend when used in the sauna.
  • This is normal due to the extreme and rapid changes in temperature and humidity that occur.
  • The risk of wood deformation depends on the material and intensity of use – the effects are also more visible in wider boards.
  • Wooden materials in the part of the sauna most exposed to the hot steam may darken over time.
  • When new, thermally modified wood may give off a noticeable scent as the sauna is heated, but this will diminish over time.

Yes, Theermory barrel saunas come with a floor kit to level out the bottom of the sauna.  This also makes an excellent raceway for hiding cables.  

We’ve found that enough air enters through the drain holes below the heater to provide excellent air flow through the sauna and out the exhaust vent near the door.

Yes, the Thermory Ignite Barrel Sauna is available here.  

Additional Details

  • Natural light from the glass door illuminates this beautiful space which includes comfortable benches, for added comfort, for up to 4 people.
  • Quality materials, thermally enhanced wood, and superb engineering make this the very best outdoor sauna.
  • Full-length wood staves.
  • Rain Jacket for additional protection
  • Pair with electric or wood burning stove (ask for compatible options)
  • We typically pair with Harvia and HUUM stoves.
  • STAVE THICKNESS: 1.625"
thermory thermally modified sustainable wood
all thermory barrel sauna options

Thermory Barrel Sauna Kit | 60 Series with Optional Porch, Panoramic Window, 2-Tier Bench

Price range: $6,501.00 through $7,167.00

Experience the barrel sauna that changed everything. Crafted from the world’s best thermally modified Nordic spruce for unmatched durability and moisture resistance, these saunas feature a curved design for efficient heat circulation, ensuring continuous warmth with less energy. Designed for easy assembly, they come with pre-cut and pre-milled components, allowing quick setup. Available in various configurations, including options with windows and porches, each model provides a spacious and comfortable environment for relaxation and socialization, free from technological distractions.

Select options

Thermory Barrel Sauna Kit | 60 Series with Optional Porch, Panoramic Window, 2-Tier Bench

Price range: $6,501.00 through $7,167.00

Experience the barrel sauna that changed everything. Crafted from the world’s best thermally modified Nordic spruce for unmatched durability and moisture resistance, these saunas feature a curved design for efficient heat circulation, ensuring continuous warmth with less energy. Designed for easy assembly, they come with pre-cut and pre-milled components, allowing quick setup. Available in various configurations, including options with windows and porches, each model provides a spacious and comfortable environment for relaxation and socialization, free from technological distractions.

Select options

Thermory Barrel Sauna Kit | 60 Series with Optional Porch, Panoramic Window, 2-Tier Bench

Price range: $6,501.00 through $7,167.00

Experience the barrel sauna that changed everything. Crafted from the world’s best thermally modified Nordic spruce for unmatched durability and moisture resistance, these saunas feature a curved design for efficient heat circulation, ensuring continuous warmth with less energy. Designed for easy assembly, they come with pre-cut and pre-milled components, allowing quick setup. Available in various configurations, including options with windows and porches, each model provides a spacious and comfortable environment for relaxation and socialization, free from technological distractions.

Select options

Thermory Barrel Sauna Kit | 60 Series with Optional Porch, Panoramic Window, 2-Tier Bench

Price range: $6,501.00 through $7,167.00

Experience the barrel sauna that changed everything. Crafted from the world’s best thermally modified Nordic spruce for unmatched durability and moisture resistance, these saunas feature a curved design for efficient heat circulation, ensuring continuous warmth with less energy. Designed for easy assembly, they come with pre-cut and pre-milled components, allowing quick setup. Available in various configurations, including options with windows and porches, each model provides a spacious and comfortable environment for relaxation and socialization, free from technological distractions.

Select options

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Build Package!

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Best Price and Service Guarantee

Sauna Marketplace offers legendary customer service and support. Odds are you landed here from a referral — because we don’t advertise.

That doesn’t mean you should have to pay more. We always honor the lowest prices allowed by our manufacturers. If you find a lower advertised price from an authorized dealer, send us a screenshot and we’ll match it.

We want you to feel great about your purchase for decades. That’s why we also offer free shipping on sauna accessories for life with the purchase of any sauna or sauna heater on Sauna Marketplace.

Shop Saunas | Shop Sauna Heaters

Specs
Exterior Shortest Side (in)59, 72, 76
Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.76, 88
Exterior Height (in)Maximum exterior height from earth to roof peak79
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
Warranty5
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
Capacity4, 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.
People4, 5, 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.
Attachments
Gallery
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.