Thermory No 40 Square Sauna / window
Thermory No 40 Square Sauna / window is backordered and will ship as soon as it is back in stock.
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- Model: No 40 Square Sauna
- 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
- 6 person with porch & window
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Thermory No 40 Square Sauna / window
- Occupancy: 6 Persons
- Product Weight: 1820 lbs
- Dimensions (L x W x H): 98.9" x 82.8" x 86.5"
- Volume: 241 Cubic Ft
- Back Bench: 6.5 ft (L) x 1.61 ft (W)
- Side Benches: 4.30 ft (L) x 1.61 ft (W)
- Window Size: 75.2" x 38.2"
- Shipping Crate Dimensions (H x W x L): 34.6" x 45.3" x 98.8"
- Porch Length: 19.32"
- Wall/Board Thickness: 1.57"
- Material: Thermally Modified Nordic Spruce
- Recommended Heater: 11kW (sold separately)
- Spacious design with over seven feet of headroom and deep, reclining tiered benches.
- Constructed with thermally modified Nordic spruce—rot-resistant for up to 25 years and highly dimensionally stable.
- Smooth-milled surfaces that stay comfortable and cool to the touch during use.
- Brushed Nordic spruce with consistent color, visible grain, and enduring durability.
- Superior insulation ensures consistent and even heat distribution.
- DIY-friendly kit designed for intuitive assembly.
- Includes a large, dramatic glass front and porch area for an open, inviting feel.
- Sustainably sourced materials meet expert-level craftsmanship.
- 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
Heater sizing for this sauna
Sized to this sauna’s interior volume, and matched to how the heater mounts.
- Interior volume
- 294.0 cu ft
- Outdoor, cold climate · 50%
- +147.0
- Effective volume
- 441 cu ft
Worked out from this sauna’s published dimensions, wall to wall, with any porch excluded.
Our recommendation
10.6 kW
HUUM HIVE Mini
At 441 cubic feet this is the size we would put in.
Thermory recommends 11 kW for this sauna. HUUM label their sizes a little differently, so this is the same heater.
Heaters that fit this sauna
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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
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HUUM CLIFF
10.5 kW · rated 353.0–600.0 cu ft
Floor-standing · breaker not published
From $4,341
Complete package with UKU Local Black
-
HUUM STEEL
10.5 kW · rated 353.0–600.0 cu ft
Floor-standing · breaker not published
From $4,253
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
Top of its range
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.
Smart shape. Sweeping views.
Nordic spruce gets a fresh look in a square silhouette with curved contours. Take in the view from the full tempered-glass front of your Thermory Sauna Square while you rest your feet on the tiered bench. Go ahead, stay awhile.
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The most spacious
The height and width of our squares give you seven feet of headroom and deep benches to sit or fully recline.
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The most durable
Thermally modified Nordic spruce never shrinks for unmatched durability and stability, along with 25 years of proven rot resistance.
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The most comfortable
Unlike cedar, which can become rough, our Nordic softwood is milled to give you the smoothest surface that’s never too hot.
Take the next step
Thermory Saunas are the only thermally modified 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 your sauna never shrinks—even in changing weather conditions. Cedar can’t say that.
Sitting porch
Your Thermory Sauna Square’s porch is the perfect place to take breaks between sessions. It’s also a good spot to leave your shoes, your robe, and your troubles.
Tiered bench
When you entertain in your Thermory Sauna Square, there’s never a bad seat in the house. Plus, you can rest your feet on the convenient lower bench.
Extra-wide Window
No matter what’s outside—rain, snow, or jealous neighbors—enjoy the view through your Thermory Sauna Square’s dramatic, rectangular window.
