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The SweatBox Outdoor — infrared + red light sauna
Our hottest sauna yet — 180°F from twelve NIR red light bulbs, wrapped in fully insulated Canadian cedar built for patios, decks, and backyards. All-weather cover included, and yes — it works beautifully indoors too. Plugs into any 110V outlet. Patent pending.
- Heats up to 180°F in as little as 15–25 minutes
- Crafted from pure Canadian cedar
- 12 Full Spectrum red light therapy bulbs
- Fully insulated to hold heat in
- Weatherproof cover included
- Elevated base — protects from moisture & bugs
- 110V outlet — no electrician needed
- Compact footprint, spacious interior
- Interior control panel for easy adjustments
- Ships from our warehouse in Oregon
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Built for the elements. Every detail earns its place.
12 NIR red light bulbs
Eight 100W bulbs plus four high-output 200W bulbs deliver 180°F of traditional-sauna heat and real light therapy at once — the heat comes from the light itself, so it performs in any climate.
Full-spectrum NIR therapy
Near-infrared light penetrates deep to support muscle recovery, circulation, reduced inflammation, cellular repair, and skin health — in every single session.
Fully insulated Canadian cedar
Premium unfinished cedar with insulated walls locks radiant heat in — reaching 180°F in as little as 15–25 minutes, even on a cold patio in winter.
Elevated base + cover included
The cabin sits raised off the ground, away from wet decking — and every order ships with a fitted all-weather cover. Be sure to use the cover during all moisture, and replace the cover every 3–4 months to ensure adequate protection.
Adjust without leaving your seat
An internal control panel lets you change time and temperature mid-session — no stepping out into the cold. Dial it down for a gentler session or run it all the way to 180° — you're never locked into max heat. Automatic shut-off timer and EMF-shielding bulb covers included.
45-minute setup · works indoors too
Modular pieces, pre-wired electrical, one screwdriver. It plugs into the 110V outlet you already have — patio, deck, garage, or spare room. No electrician, ever.
Start on a frozen patio. End at 180°.
Snow on the deck, breath in the air. The SweatBox Outdoor doesn't care — insulated Canadian cedar and 1,600W of bulb power built to perform in any climate.
Rain, snow, July heat — bring it.
Fully insulated walls
Insulation layered into the cedar cabin locks radiant heat in, so the Outdoor reaches 180°F in as little as 15–25 minutes — on a summer evening or a winter morning. Because the heat comes from the bulbs' light itself, not just the air, performance stays consistent in cold climates.
Elevated base + all-weather cover — included
The cabin sits raised off the ground, away from wet decking and pooling water, and every order ships with a fitted weatherproof cover at no charge. One honest rule: we leave the cedar with no finish, stain, or sealant of any kind — so there's nothing to off-gas in the heat — which makes the cover its only protection. Be sure to use the cover during all moisture (rain, snow, morning dew, sprinklers), and replace the cover every 3–4 months to ensure its protective features stay intact. That small habit is what keeps the cedar beautiful for years.
And yes — it works indoors too
Same 110V plug, same compact footprint. If your plans change, the Outdoor moves happily into a garage, gym, or spare room.
Insulated Canadian cedar All-weather cover · $0 extraSmaller than a queen mattress.
Patio corner. Deck. Balcony. Backyard nook. If you have sixty by forty-two inches outside — or inside — you have room for a real 180° sauna, and the 110V outlet you already have is all the infrastructure you need.
All three infrared ranges. Every session.
Most saunas give you one slice of the spectrum. The Outdoor's twelve incandescent bulbs — including four high-output 200W bulbs — emit one continuous band from 550 to 3,000+ nm, the way the sun does. That's the deep, full-body heat of a traditional sauna plus real light therapy from the same glowing source.
Near infrared
Penetrates deepest — into muscle, joints, and connective tissue. Absorbed by mitochondria to boost ATP: cellular repair, less inflammation, faster recovery, better circulation. Twelve NIR bulbs deliver it with intensity.
Mid infrared
Targets soft tissue just beneath the skin — expanding blood vessels, improving lymphatic drainage, easing chronic muscle tension and joint pain. Most LED saunas deliver no MIR at all.
Far infrared
The intense, penetrating heat the Outdoor is known for. Combined with insulated cedar walls, FIR drives the deep 180° sweat traditional sauna users love — heat-shock proteins and the full detox response.
Real glass bulbs vs. plastic LED panels.
Nearly every sauna now advertises "red light therapy" — and nearly all of them do it with LED panels. We're one of the only saunas delivering red light through real incandescent glass bulbs. Here's why that difference matters every single session.
✦ Our incandescent glass bulbs
- The full spectrum, like sunlight — a glowing tungsten filament emits one continuous band from 550 to 3,000+ nm, covering visible red, NIR, MIR, and FIR.
- Heat + light from one source — the same bulb warms you and delivers light therapy at once. Heat opens your blood vessels; light activates your mitochondria to use that oxygen. Scientists call it photothermal synergy — each amplifies the other.
- Flicker-free glow — a heated filament has thermal inertia and can't strobe, so the light stays smooth for the whole session.
- No electronics against your body — just glass and filament. Certified EMF below 2 milligauss.
- Durable & replaceable — a bulb swaps out in seconds, so your sauna outlasts the trend.
Their plastic LED panels
- Two wavelengths only — 660 nm and 850 nm, then nothing. No mid-infrared, no far-infrared. Targeted, but incomplete.
- Light without heat — LEDs run cool, so the heat comes from a separate system bolted alongside. Two independent systems, zero synergy by design.
- Flicker is possible — LED drivers cycling on AC power can strobe invisibly, a subtle stressor during long sessions.
- Circuit boards inches away — drivers, controllers, sometimes wireless components sit right beside your body the whole time.
- Sealed plastic housings — when a diode fails, you're replacing the entire panel.
SweatBox Outdoor vs. everything else.
| What matters | SweatBox Outdoor | Traditional outdoor sauna | LED sauna |
|---|---|---|---|
| Plugs into a standard 110V outlet | ✓ | ✗ — 220V + electrician | Varies |
| Full spectrum — NIR + MIR + FIR | ✓ 550–3,000+ nm | ✗ | 660 + 850 nm only |
| Heat + light from one source | ✓ photothermal synergy | ✗ | Two separate systems |
| Works outdoors and indoors | ✓ built for both | Outdoor only | Indoor only |
| All-weather cover included | ✓ with every order | Rarely | ✗ |
| Certified low EMF | ✓ under 2 mG | 40–100+ mG | 8–20 mG |
| Assembled in under an hour | ✓ one screwdriver | ✗ — days + contractor | Varies |
| Fits in 60" × 42" | ✓ | ✗ | Sometimes |
| No sales tax + FSA/HSA eligible | ✓ | ✗ | ✗ |
Indoor vs. Outdoor — every difference, explained.
Still weighing the two? In this in-depth video, we walk through every difference between the indoor SweatBox and the Outdoor — construction, heat, light, placement, and who each one is right for. It's the long version, for when you want the full story.
▶ Watch the full breakdown
3,000+ saunas out there. Hear the sweat.
The Sweat Box sauna was an easy setup. It looks great on my patio — honestly, it made my backyard look cooler. It gets to 180° even when it's cold out and the cover keeps it looking crispy. Love using it alongside my cold plunge in the warmer months!
Loving my new Sweat Box sauna! It was super easy to set up in my garage, and it's been a great addition to my fitness and wellness routine. Fits perfectly without taking up too much space. Definitely worth it!
Got the Sweat Box for my apartment patio and it's a game changer. Setting it up was a breeze and it doesn't eat up space. My skin is clearer and I'm feeling healthier. Highly recommend it.
A community sweating in every corner of the country.
From backyard patios to garage gyms, decks to balconies — thousands of owners across the United States have claimed their corner.
The Outdoor, spec'd out.
Full specifications
- Dimensions60" L × 42" W × 52" H
- Weight242 lb
- Power110–120V · standard outlet
- Input power1,600W
- Red light bulbs12× NIR — 8× 100W + 4× 200W high-output
- Max temperature180°F in 15–25 min
- Feels like200°+ — close bulb proximity & infrared
- EMFBelow 2 mG · certified low EMF
- WoodInsulated unfinished Canadian cedar
- WeatherproofingElevated base · all-weather cover included
Everything included
- All parts and accessories to build your box
- 12 red light bulbs — 8× 100W & 4× 200W
- 3 red light housings — pre-installed
- Light switch — pre-installed
- Control panel — pre-installed
- 110V plug — standard outlet, no electrician needed
- All-weather sauna cover
- Only tool needed: one screwdriver
From the cedar to the wavelengths.
Unfinished Canadian cedar — nothing to off-gas
Sanded and left completely raw: no stains, varnishes, or chemical coatings of any kind. Cedar is naturally aromatic when heated, naturally antimicrobial against mold and mildew, and naturally insulating. Because we leave it raw, the included all-weather cover does the job a chemical sealant would — keep the cover on during any moisture and replace the cover every 3–4 months. At 180°F, the air you breathe should be warm cedar — nothing else.
Certified low EMF — below 2 milligauss
Typical LED sauna panels emit 8–20 mG from their integrated electronics; traditional electric saunas can reach 40–100+ mG. The Outdoor's simple filament bulbs carry no onboard electronics, and with shielded wiring and grounding, the cabin measures consistently below 2 mG — the most powerful heat in our lineup with the lowest possible exposure.
Certified low EMF · < 2 mG No VOCs · no chemical finishes