Thermory No 43 Square Sauna
Thermory No 43 Square Sauna is backordered and will ship as soon as it is back in stock.
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- Model: No 43 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
- 4 person with porch
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Thermory No 43 Square Sauna
- Length: 6.9 ft
- Width: 6.9 ft
- Height: 7.28 ft
- Volume: 191 cu. ft
- Back Bench: 6.5 ft (L) x 1.61 ft (W)
- Side Benches: 2.9 ft (L) x 1.61 ft (W)
- Porch Length: 1.61 ft
- Board Thickness: 1.57 in
- Windows: None
- Recommended Heater: 9kW (sold separately)
- 4-Person Capacity: Ideal for individuals, couples, or small group sessions
- Tempered Glass Front: Enhances light and visual openness
- No Side Windows: Increased privacy and improved thermal retention
- Thermally Modified Nordic Spruce: Naturally durable, stable, and richly textured
- Eco-Friendly Construction: Sustainably harvested spruce with a brushed surface
- Smooth, Rounded Edges: Luxurious and cool to the touch
- Efficient Insulation: Creates a consistent, enveloping heat environment
- DIY Assembly: Designed for easy self-installation (heater not included)
- Integrated Porch: Functional space to cool down and relax between sessions
- Manuals
- Cradles
- Body staves
- Wall panels
- 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
- 234.0 cu ft
- Outdoor, cold climate · 50%
- +117.0
- Effective volume
- 351 cu ft
Worked out from this sauna’s published dimensions, wall to wall, with any porch excluded.
Our recommendation
9.0 kW
HUUM HIVE Mini
At 351 cubic feet this is the size we would put in.
Thermory recommends 9 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
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
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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.
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.
