Thermory Natural Barrel Series Sauna
Thermory Natural Barrel Series Sauna - No 50/51 · 6-Person / With Window is backordered and will ship as soon as it is back in stock.
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- Model: Barrel Series — No 50/51 · No 52/53 · No 54/55 · No 60/61 · No 62/63
- Sustainably sourced Northern European spruce features a brushed texture, distinct knots, and consistent heartwood color
- Unrivaled rot- and moisture-resistance with exceptional stability and durability
- Superior insulating properties keep you surrounded with even heat distribution
- Intuitively engineered for simple DIY installation — install in one day with no cutting required
- Five sizes — 2, 4 and 6 person, including a porch model — each available with or without a rear window
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Thermory Natural Barrel Series Sauna
Round walls hold heat more evenly than a square room, and the curved roof sheds rain and snow instead of collecting it. Step through the glass front door onto duckboard flooring and take a seat on deep Thermo-Aspen benches — the panoramic rear window, where fitted, keeps the tree line in view even with the door shut.
The Barrel series runs five sizes: the 2-person No 54/55, the 4-person No 52/53, the 6-person No 50/51, the 4-person No 60/61 with its own covered porch, and the largest, 6-person No 62/63. Every size ships as a DIY kit — cradles, staves, benches, flooring and rain jacket included — with or without the rear window. Heater not included.
| No 50/51 · 6-Person | No 52/53 · 4-Person | No 54/55 · 2-Person | No 60/61 · 4-Person + Porch | No 62/63 · 6-Person | |
|---|---|---|---|---|---|
| Dimensions (L x Dia) | 88" x 76" | 71" x 76" | 59" x 76" | 89" x 91" | 88.5" x 90.5"† |
| Interior Volume | 199.5 cu ft | 154.3 cu ft | 124.3 cu ft | 212 cu ft | 265 cu ft |
| Bench Depth | 19.5" | 19.5" | 19.5" | 24" | 24" |
| Recommended Heater (Thermory) | 7.5 kW – Drop | 6.0 kW – Drop / Steel | 4.5 kW – Drop | 7.5 kW – Drop | 9.0 kW – Drop / Steel / CORE |
| Heater Mount | Floor or Wall | Floor or Wall | Floor or Wall | Floor or Wall | Wall only |
| Window Option | Rear panoramic window, +$472 | Rear panoramic window, +$472 | Rear panoramic window, +$477 | Rear panoramic window, +$626 | Rear panoramic window, +$628 |
| Shipping Weight | 2,000 lb | 2,000 lb | 2,000 lb | 2,000 lb | 2,100 lb‡ |
| Price | $6,463 (no window) / $6,935 (window) | $5,698 (no window) / $6,170 (window) | $5,296 (no window) / $5,773 (window) | $6,866 (no window) / $7,492 (window) | $6,797 (no window) / $7,425 (window) |
Dimensions are rounded to the nearest inch, per Thermory's published spec sheet. Recommended heater is Thermory's own 2026 dealer price list pairing, shown for reference — the heater-sizing tool elsewhere on this page calculates independently from interior volume and may suggest a different size.
† Thermory's published length and diameter for No 62/63 are identical to No 60/61 in the source data, despite the two pairs having different interior volumes (265 vs 212 cu ft). Flagged as an unresolved supplier data conflict, not corrected here.
‡ Shipping weight does not vary between the window and no-window variant of the same size — carried over exactly as recorded in Shopify, not necessarily the true difference a window adds.
- Available in five sizes — 2, 4 and 6 person, including a porch model — with four of the five offered with or without a rear panoramic window.
- Round barrel construction holds heat evenly and sheds rain and snow off the curved roof.
- Constructed with thermally modified Nordic spruce — rot-resistant and highly dimensionally stable.
- Smooth-milled, brushed surfaces with consistent color and visible grain that stay comfortable and cool to the touch.
- Superior insulation for consistent, even heat distribution throughout the interior.
- Full tempered-glass front door on every size for light and an open feel.
- Covered porch on the No 60/61 for cooling down between rounds.
- DIY-friendly kit designed for intuitive, self-guided assembly (heater not included).
- Barrel cradles
- Body staves
- Wall panels
- Glass front door
- Interior benches
- Backrest staves
- Duckboard flooring
- Fasteners
- Adhesive roof tape
- Metal bands
- Heat shield
- Cable raceway
- Rain jacket with trim
Windowed sizes add a panoramic window panel; No 60/61 also includes porch benches. See the comparison table above for what's included on each size.
Heater sizing for this sauna
Sized to the interior volume of the size you have selected, and matched to how the heater mounts.
- Interior volume
- 199.5 cu ft
- Outdoor, cold climate · 50%
- +99.8
- Effective volume
- 299 cu ft
Interior volume as published by the manufacturer.
Our recommendation
9.0 kW
HUUM HIVE Mini
At 299 cubic feet this is the size we would put in.
Heaters that fit this sauna
-
Recommended
HUUM HIVE Mini
9.0 kW · rated 283.0–460.0 cu ft
Floor-standing · 50 A breaker · 8 AWG
From $4,519
Complete package with UKU Local Black
-
HUUM CLIFF
6.0 kW · rated 176.0–353.0 cu ft
Floor-standing · breaker not published
Top of its range
From $3,809
Complete package with UKU Local Black
-
HUUM STEEL
6.0 kW · rated 176.0–353.0 cu ft
Floor-standing · breaker not published
Top of its range
From $3,153
Complete package with UKU Local Black
-
HUUM DROP
7.5 kW · rated 230.0–441.0 cu ft
Wall-mount · 40 A breaker · 8 AWG
From $3,054
Complete package with UKU Local Black
One heater per series, at the size that suits this sauna — open any of them to see the rest of the range. Sizing is a starting point, not an installation specification: confirm the output, the mounting and the electrical requirement against the heater’s own manual and a licensed electrician before you buy.
- Interior volume
- 154.3 cu ft
- Outdoor, cold climate · 50%
- +77.2
- Effective volume
- 231 cu ft
Interior volume as published by the manufacturer.
Our recommendation
6.0 kW
HUUM HIVE Mini
At 231 cubic feet this is the size we would put in.
Heaters that fit this sauna
-
Recommended
HUUM HIVE Mini
6.0 kW · rated 177.0–318.0 cu ft
Floor-standing · 30 A breaker · 10 AWG
From $4,364
Complete package with UKU Local Black
-
HUUM CLIFF
6.0 kW · rated 176.0–353.0 cu ft
Floor-standing · breaker not published
From $3,809
Complete package with UKU Local Black
-
HUUM STEEL
6.0 kW · rated 176.0–353.0 cu ft
Floor-standing · breaker not published
From $3,153
Complete package with UKU Local Black
-
HUUM DROP
6.0 kW · rated 177.0–353.0 cu ft
Wall-mount · 30 A breaker · 10 AWG
From $2,888
Complete package with UKU Local Black
One heater per series, at the size that suits this sauna — open any of them to see the rest of the range. Sizing is a starting point, not an installation specification: confirm the output, the mounting and the electrical requirement against the heater’s own manual and a licensed electrician before you buy.
- Interior volume
- 124.3 cu ft
- Outdoor, cold climate · 50%
- +62.2
- Effective volume
- 186 cu ft
Interior volume as published by the manufacturer.
Our recommendation
6.0 kW
HUUM HIVE Mini
At 186 cubic feet this is the size we would put in.
Heaters that fit this sauna
-
Recommended
HUUM HIVE Mini
6.0 kW · rated 177.0–318.0 cu ft
Floor-standing · 30 A breaker · 10 AWG
From $4,364
Complete package with UKU Local Black
-
HUUM CLIFF
6.0 kW · rated 176.0–353.0 cu ft
Floor-standing · breaker not published
From $3,809
Complete package with UKU Local Black
-
HUUM STEEL
6.0 kW · rated 176.0–353.0 cu ft
Floor-standing · breaker not published
From $3,153
Complete package with UKU Local Black
-
HUUM DROP
6.0 kW · rated 177.0–353.0 cu ft
Wall-mount · 30 A breaker · 10 AWG
From $2,888
Complete package with UKU Local Black
One heater per series, at the size that suits this sauna — open any of them to see the rest of the range. Sizing is a starting point, not an installation specification: confirm the output, the mounting and the electrical requirement against the heater’s own manual and a licensed electrician before you buy.
- Interior volume
- 212.0 cu ft
- Outdoor, cold climate · 50%
- +106.0
- Effective volume
- 318 cu ft
Interior volume as published by the manufacturer.
Our recommendation
9.0 kW
HUUM HIVE Mini
At 318 cubic feet this is the size we would put in.
Heaters that fit this sauna
-
Recommended
HUUM HIVE Mini
9.0 kW · rated 283.0–460.0 cu ft
Floor-standing · 50 A breaker · 8 AWG
From $4,519
Complete package with UKU Local Black
-
HUUM CLIFF
9.0 kW · rated 317.0–529.0 cu ft
Floor-standing · breaker not published
From $4,100
Complete package with UKU Local Black
-
HUUM STEEL
9.0 kW · rated 317.0–529.0 cu ft
Floor-standing · breaker not published
From $4,086
Complete package with UKU Local Black
-
HUUM DROP
7.5 kW · rated 230.0–441.0 cu ft
Wall-mount · 40 A breaker · 8 AWG
From $3,054
Complete package with UKU Local Black
One heater per series, at the size that suits this sauna — open any of them to see the rest of the range. Sizing is a starting point, not an installation specification: confirm the output, the mounting and the electrical requirement against the heater’s own manual and a licensed electrician before you buy.
- Interior volume
- 265.0 cu ft
- Outdoor, cold climate · 50%
- +132.5
- Effective volume
- 398 cu ft
Interior volume as published by the manufacturer.
Our recommendation
10.6 kW
HUUM HIVE Mini
At 398 cubic feet this is the size we would put in.
Heaters that fit this sauna
-
Recommended
HUUM HIVE Mini
10.6 kW · rated 354.0–566.0 cu ft
Floor-standing · 50 A breaker · 6 AWG
From $4,866
Complete package with UKU Local Black
-
HUUM CLIFF
9.0 kW · rated 317.0–529.0 cu ft
Floor-standing · breaker not published
From $4,100
Complete package with UKU Local Black
-
HUUM STEEL
9.0 kW · rated 317.0–529.0 cu ft
Floor-standing · breaker not published
From $4,086
Complete package with UKU Local Black
-
HUUM DROP
9.0 kW · rated 282.0–530.0 cu ft
Wall-mount · 50 A breaker · 8 AWG
From $3,133
Complete package with UKU Local Black
One heater per series, at the size that suits this sauna — open any of them to see the rest of the range. Sizing is a starting point, not an installation specification: confirm the output, the mounting and the electrical requirement against the heater’s own manual and a licensed electrician before you buy.
escape into your own private sanctuary of heat
Once you step into a Thermory Barrel Sauna, you escape into your own private sanctuary of heat, steam, and quiet comfort, unmatched by any other barrel.
More than a place to shed the burdens of the day, a Thermory Barrel Sauna is your own personal space to speed your body’s natural healing process. Just relax and let your sauna do the work to help rejuvenate sore muscles, improve joint movement, and eliminate built-up toxins. So, whatever the day takes out of you, you’ll always finish strong.
Unequaled Durability and Stability
What makes Thermory Barrel Saunas unique? Ours are the only thermally modified barrel saunas in North America. So you get the beauty of real wood, naturally enhanced with only heat and steam for unequaled durability and stability. And it never shrinks—even in changing weather conditions. It’s the most ideally suited wood for your sauna experience.
Beautiful Nordic Softwood
We look no further than the birthplace of sauna culture for beautiful Nordic softwood to craft your Thermory Barrel Sauna. Unlike cedar, which can become rough and unattractive over time, Thermory Nordic spruce’s proven rot resistance and ability to withstand the elements create the perfect marriage between outstanding design and structural integrity. Your Thermory Barrel Sauna comes with our step-by-step installation guide. And there’s no cutting necessary, thanks to our pre-cut and pre-milled staves and cradles.
