FireLight® Infrared Sauna

Discover the unmatched benefits of FireLight® near-infrared and red light sauna therapy, where full-spectrum light meets deep cellular regeneration. Completely EMF-free and designed for daily use, FireLight creates a sanctuary for detox and healing.

As Seen In

Limitless Benefits

Detoxification

Awaken your body's natural ability to expel impurities. Our FireLight® Spectrum activates & penetrates deeply, helping you detoxify at the cellular level so you feel refreshed and revitalized.

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Healing & Recovery

Harness your body’s innate power to heal. The FireLight® Spectrum penetrates deep into muscles and tissues, accelerating recovery and reducing soreness so you stay strong and resilient.

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Immune Support

Strengthen your body's defenses. The heat and light therapy from our saunas activate your immune response, helping you stay healthy and strong.

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Skin Rejuvenation

Boost your skin's natural glow. Regular exposure to our red and near-infrared light enhances collagen production, leaving your skin firmer, plumper and radiantly healthy.

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Stress Reduction

Melt away tension and restore balance. The FireLight® Spectrum calms the nervous system, helping you unwind, regulate stress, and feel more at ease.

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Better Sleep

Rest deeply and wake refreshed. Regular use of the FireLight® Spectrum can improve sleep quality by promoting relaxation and regulating your body's natural sleep cycles.

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Pain Relief

Melt away tension and discomfort. The FireLight® Spectrum improves circulation and reduces inflammation, providing natural relief from aches and pains.

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Emotional Balance

Elevate your spirits naturally. The FireLight® Spectrum increases the production of endorphins and serotonin, boosting your mood and helping you feel more balanced.

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Enhanced Cognition

Sharpen your focus and clarity. Red and near-infrared light stimulate brain function, enhancing cognitive performance and reducing mental fog.

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Athletic Performance

Train smarter, recover faster. The FireLight® Spectrum speeds up muscle recovery, helping you achieve your athletic goals with less downtime.

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Weight Loss

Support your wellness goals with ease. The FireLight® spectrum increases heart rate and circulation, helping you burn calories more efficiently while you relax.

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Longevity

Invest in your future health. Regular sauna sessions can improve cardiovascular health, reduce inflammation, and support cellular rejuvenation, contributing to a longer, healthier life.

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The FireLight® Spectrum: A Revolution in Heat and Light Therapy

The FireLight® Spectrum blends red and near-infrared light in the body’s most responsive range. It fuels energy, activates detox, and restores balance at the cellular level. This isn’t surface sweat. It’s deep, biological renewal.

Discover how the FireLight Spectrum changes everything
Graph of FireLight® Spectrum showing the 'Sweet Spot' of near infrared containing sections of '"Peak Light Therapy' and "Peak Heat Therapy' Graph of FireLight® Spectrum showing the 'Sweet Spot' of near infrared containing sections of '"Peak Light Therapy' and "Peak Heat Therapy'
Dr. Bryan Ardis - Chiropractor, Author

“One of the easiest and most efficient ways to actually detox and provide healing benefits is to use a sauna. There are many different saunas in the world. I have only one in my home: SaunaSpace. There’s very few technology devices on earth I’ve ever said I loved. I love SaunaSpace.”

Dr. Bryan Ardis

DC, Author

Woman walking through a modern living room toward FireLight Infrared Sauna with large windows and plants.

Crafted by Hand, Built to Last

At SaunaSpace, every FireLight® Sauna is built by hand in our Columbia, Missouri workshop, where skilled artisans carry forward a legacy of American craftsmanship. With no assembly lines, no plastic, and no off-gassing materials, each sauna is made start to finish with meticulous care—shaped, joined, and finished by human hands. The result is a toxin-free sanctuary, crafted to last and grounded in our commitment to purity, precision, and timeless design.

BasswoodSustainably harvested and untreated—no outgassing.

Basswood icon showing beige circular cutout with wavy line pattern

Organic CottonGOTS-certified, breathable, and entirely free from synthetics.

Organic Cotton icon showing beige circular lattice pattern

Stainless SteelNo coatings or aluminum—clean, durable, and built to last.

Stainless Steel icon showing beige concentric circles.

Organic BambooUntreated Organic Kiln-Toasted Bamboo

Organic Bamboo icon showing beige decorative shape with interlocking lines

Outshining the Competition

Only FireLight® delivers true full-spectrum infrared and radiant heat to support deep detox, cellular renewal, and total-body restoration.

Benefits
FireLight Infrared SuperSauna in Natural Color with lights on and Sauna Stool inside
SaunaSpace infinity logo mark
FireLight® Sauna
Wooden traditional sauna with interior bench and electric hot rocks heater.

Traditional 
Sauna

Far infrared wood cabinet sauna with wooden interior and dark exterior

Far Infrared 
Emitter Sauna

LED red light therapy panel

LED Light

Therapy Panel

Detoxification 3 2 2 1
Healing & Recovery 3 2 2 1
Immune Support 3 2 2 2
Skin Rejuvenation 3 1 1 2
Stress Reduction 3 1 1 1
Better Sleep 3 2 2 1
Pain Relief 3 1 1 2
Emotional Balance 3 2 2 2
Enhanced Cognition 3 2 2 2
Athletic Performance 3 2 2 2
Weight Loss 3 2 2 0
Longevity 3 3 3 0
See More

Built for Real Healing

Every detail of the FireLight® Sauna is designed to heal deeply, not just shine bright.

Features
FireLight Infrared Sauna - Classic (4 bulbs) in Natural Color with lights on and Sauna Stool inside
SaunaSpace infinity logo mark
FireLight® Sauna

Wooden traditional sauna with interior bench and electric hot rocks heater.

Traditional 
Sauna

Far infrared wood cabinet sauna with wooden interior and dark exterior

Far Infrared 
Emitter Sauna

LED red light therapy panel

LED Light

Therapy Panel

Portable 3 0 1 3
Easy set-up 3 0 0 2
Fast & efficient experience 3 0 0 2
Comfortable 3 1 1 2
Full-body experience 3 3 3 0
EMF shielded 3 0 0 0
Clean, eco-friendly materials 3 2 1 0
No preheating needed 3 0 0 3
Meditative design / feng shui 3 1 1 0
Grounded 3 0 0 0
Made in USA 3 0 0 0
Plug & play (no special outlets) 3 0 1 3
White glove customer care 3 0 0 0
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FireLight Infrared Sauna - Classic (4 bulb) - Natural with lights on and stool inside on beige background FireLight Infrared Sauna - Classic (4 bulb) - Natural with lights on and stool inside on beige background
FireLight Infrared Sauna - Classic (4 bulb) - Natural with SilverLining with lights on and stool inside on beige background and badge that says 'SaunaSpace SilverLining - Full EMF Protection' and has sacred geometry inside the circle and with cellular signal and Wi-Fi symbols outside the circle. FireLight Infrared Sauna - Classic (4 bulb) - Natural with SilverLining with lights on and stool inside on beige background and badge that says 'SaunaSpace SilverLining - Full EMF Protection' and has sacred geometry inside the circle and with cellular signal and Wi-Fi symbols outside the circle.
FireLight Infrared Sauna - SuperSauna (7 bulb) - Natural with lights on and stool inside on beige background FireLight Infrared Sauna - SuperSauna (7 bulb) - Natural with lights on and stool inside on beige background
FireLight Infrared Sauna - SuperSauna (7 bulb) - Natural with SilverLining with lights on and stool inside on beige background and badge that says 'SaunaSpace SilverLining - Full EMF Protection' and has sacred geometry inside the circle and with cellular signal and Wi-Fi symbols outside the circle. FireLight Infrared Sauna - SuperSauna (7 bulb) - Natural with SilverLining with lights on and stool inside on beige background and badge that says 'SaunaSpace SilverLining - Full EMF Protection' and has sacred geometry inside the circle and with cellular signal and Wi-Fi symbols outside the circle.

What's in the Box

Classic

1 x Hearth Quartet
4 x FireLight® Bulb (120v or 240v, based on selected plug)
1 x Shielded Power Cord

4 x Turnkey Clamp

1 x Outlet Tester
1 x Portable Enclosure:

  • 1 x Inner Cover
  • 1 x Outer Cover
  • 1 x Curtain
  • 1 x Grounding Mat
  • 1 x Frame Connector Set
  • 4 x Long Frame Pole
  • 6 x Short Frame Pole
  • 2 x Short Mat Stick
  • 1 x Long Mat Stick

1 x Stool
1 x Exfoliating Sauna Brush

1 x FireLight® Sauna Use Guide

Materials

North American basswood

Sustainably harvested and crafted without chemicals or oils.

Stainless Steel

Untreated USA-manufactured guards free of powder coating.

Organic Bamboo

Heat-treated for durability. Unvarnished and chemical-free.

Organic Canvas

GOTS-certified 100% cotton canvas. Durable, machine-washable construction.

SilverLining™ Fabric

35% silver, 65% GOTS-certified organic cotton.

Dimensions

Assembled Sauna dimensions

  • Entrance width: 52 in (132 cm)
  • Rear width: 24 in (61 cm)
  • Depth: 52 in (132 cm)
  • Height: 63 in (160 cm)

Hearth Quartet dimensions

  • Width: 23.75 in (60.3 cm)
  • Height: 23.5 in (59.7 cm)
  • Depth: 9 in (22.9 cm)

Hearth Trio dimensions

  • Width: 23.75 in (60.3 cm)
  • Height: 15.5 in (39.4 cm)
  • Depth: 9 in (22.9 cm)

Stool dimensions

  • Height: 18 in (46 cm)
  • Seat width: 14 in (36 cm)
  • Leg width: 16 in (41 cm)
Weight

Classic Total: 44.9 lb (20.6 kg)

  • Hearth Quartet: 11.4 lb (5.2 kg)
  • Standard Sauna Enclosure Total: 25 lb (11.5 kg)
  • Sauna Stool: 8.5 lb (3.9 kg)

Classic with SilverLining™ Total: 47.3 lb (21.5 kg)

  • Hearth Quartet: 11.4 lb (5.2 kg)
  • Sauna Enclosure with SilverLining™ Total: 27.4 lb (12.4 kg)
  • Sauna Stool: 8.5 lb (3.9 kg)

SuperSauna Total: 51.9 lb (23.8 kg) 

  • Hearth Quartet: 11.4 lb (5.2 kg)
  • Hearth Trio: 7 lb (3.2 kg)
  • Standard Sauna Enclosure Total: 25 lb (11.5)
  • Sauna Stool: 8.5 lb (3.9 kg)

SuperSauna with SilverLining™ Total: 54.3 lb (24.7 kg)

  • Hearth Quartet: 11.4 lb (5.2 kg)
  • Hearth Trio: 7 lb (3.2 kg)
  • Sauna Enclosure with SilverLining™ Total: 27.4 lb (12.4 kg)
  • Sauna Stool: 8.5 lb (3.9 kg)

Sauna Enclosure (no SilverLining™) Total: 25 lb (11.5 kg)

  • Frame Pole Set: 6.6 lb (3 kg)
  • Frame Connector Set: 2.6 lb (1.2kg)
  • Grounding Mat (includes Mat Sticks): 3.4 lb (1.5 kg)
  • Inner Cover: 5.2 lb (2.4 kg)
  • Outer Cover: 5.4 lb (2.4 kg)
  • Curtain: 1.8 lb (1 kg)

Sauna Enclosure with SilverLining™ Total: 27.4 lb (12.4 kg)

  • Frame Pole Set: 6.6 lb (3 kg)
  • Frame Connector Set: 2.6 lb (1.2kg)
  • Grounding Mat (includes Mat Sticks): 3.4 lb (1.5 kg)
  • Inner Cover: 5.2 lb (2.4 kg)
  • Outer Cover: 5.4 lb (2.4 kg)
  • SilverLining™ Cover: 1.8 lb (0.8 kg)
  • SilverLining™ Curtain: 2.4 lb (1.1 kg)
Electrical Info

Classic (Hearth Quartet)

Wattage: 1000 W

Input voltage and frequency: 120 V at 50–60 Hz, 240 V at 50–60 Hz

Amperage: 8.3 A at 120 V, 4.2 A at 240 V

Power cord length: 15 ft ( 4.6 m)

SuperSauna (Hearth Quartet + Hearth Trio)

Wattage: 1750 W

Input voltage and frequency: 120 V at 50–60 Hz, 240 V at 50–60 Hz

Amperage: 14.58 A at 120 V, 7.29 A at 240 V

Power cord length: 15 ft ( 4.6 m)

Approvals

All electrical parts UL-listed.

CE-certified.

How it Ships

Number of Boxes

Classic ships in 3 boxes.

Box 1: 27 x 26 x 11 in, 27 lb (69 x 66 x 28 cm, 12.2 kg)
Box 2: 34 x 18 x 11 in, 42 lb (86 x 46 x 28 cm, 19 kg)
Box 3: 19 x 18 x 6 in, 11 lb (48 x 46 x 15 cm, 5 kg)

SuperSauna ships in 4 boxes, because it also includes a Hearth Trio.

Box 1: 27 x 26 x 11 in, 27 lb (69 x 66 x 28 cm, 12.2 kg)
Box 2: 34 x 18 x 11 in, 42 lb (86 x 46 x 28 cm, 19 kg)
Box 3: 19 x 18 x 6 in, 11 lb (48 x 46 x 15 cm, 5 kg)

Box 4: 26 x 18 x 11 in, 21 lb (66 x 46 x 28 cm, 9.5 kg)

circular gradient of cream and red light
@SAUNASPACE

536 Reviews from Happy Customers

4.9
Rated 4.9 out of 5 stars
Based on 536 reviews
Total 5 star reviews: 510 Total 4 star reviews: 22 Total 3 star reviews: 2 Total 2 star reviews: 1 Total 1 star reviews: 1
99%would recommend this product
Slide 1 selected
536 reviews
  • H
    Hilary
    I recommend this product
    SilverLining™? Yes
    Benefits I Notice Radiant Skin, Detox, Less Inflammation, More Energy, Improved Mental Health/Mood
    My Favorite Features Quick Sweating, Combining Light & Heat Therapy, Convenience of Sauna at Home, Nature’s FireLight Spectrum Indoors, Comfortable Air Temperature
    Rated 5 out of 5 stars
    3 months ago
    I love this sauna so much!

    This review is long overdue, but I just had to post because I had an incredible experience recently. I’ve been using my sauna regularly for the past 3 1/2 years, and it has helped me in so many ways — high energy levels, great mood, high-quality sleep, glowy skin, fast recovery from workouts. But the most amazing thing happened last week, I went to the functional medicine doctor for the first time in years, just to check up on everything, and they did a full panel of bloodwork, they must’ve taken like 30 vials of blood and tested for everything — from nutrition and hormones to inflammatory markers and even toxins like heavy metals and mold. When I went for the follow up appointment, my doctor seemed stunned. He said that in 15 years of practicing functional medicine, he had never seen bloodwork like mine. He said I was biologically decades younger than my chronological age, and asked what I had been doing lifestyle-wise. There wasn’t much to talk about during my appointment, so I told him all about my sauna :-) thank you thank you thank you, SaunaSpace for this amazing gift of health.

    QualityRated 2.0 on a scale of minus 2 to 2
    Ease of SetupRated 2.0 on a scale of minus 2 to 2
    I Use ItRated 2.0 on a scale of minus 2 to 2
    ExpectationsRated 2.0 on a scale of minus 2 to 2
  • HW Profile picture for hayden w.
    hayden w.
    Verified Buyer
    I recommend this product
    SilverLining™? No
    Benefits I Notice Detox, Pain Reduction, More Energy, Improved Mental Health/Mood, Stress Reduction
    My Favorite Features Quick Sweating, Combining Light & Heat Therapy, Convenience of Sauna at Home, Ritual for Mindfulness, Portability
    Age 40-49
    Rated 5 out of 5 stars
    5 months ago
    Very Happy w This Red Light Sauna

    It took me over three years to make this purchase because I didn’t want to spend the money. Been dealing with chronic fatigue type stuff for over a decade - finally took advantage of a sale and ended up getting the the sauna space after deliberating spending more money for a clearlights sauna the program. I am on a program that recommends near infrared over far so went with this one. And this one was portable and more compact at a lower price point so I went with it! I’ve been using it for about two months now and I’m already feeling like I’m getting so much better. I have more consistent and reliable energy day to day. I started off with just 10 minutes a day because I went for 20 a few times and it wore me out. So I backed down to 10m at a time and now I’ve built up to 20 minutes a day and have the stamina to do it. This thing gets me sweating like no other sauna has before and I’ve been in all different types of saunas. It’s incredible how much you sweat. I do feel like this was a missing piece in my healing and truly feel

    It is healing me on a cellular level. I expect to continue improving. I will update this review in a few months.

    Also on a purely aesthetic level I will say it is so well done. The structure and appearance you can’t beat for something you need to put in a small

    Space. I know I could have thrown something red light together for less but the tent and solid light panel make it all worth it. So happy w this purchase and look forward to…

    QualityRated 2.0 on a scale of minus 2 to 2
    Ease of SetupRated 2.0 on a scale of minus 2 to 2
    I Use ItRated 2.0 on a scale of minus 2 to 2
    ExpectationsRated 1.0 on a scale of minus 2 to 2
  • C?Profile picture for Cashmere 🐐 S. 🌅 L. 🦁
    Cashmere 🐐 S. 🌅 L. 🦁
    Verified Reviewer
    I recommend this product
    Classic or SuperSauna? SuperSauna
    SilverLining™? No
    Benefits I Notice Detox, Radiant Skin, Improved Sleep, Pain Reduction, Less Inflammation
    My Favorite Features USA-Handcrafted Quality, Combining Light & Heat Therapy, Nature’s FireLight Spectrum Indoors, Ritual for Mindfulness, Portability
    Age 40-49
    Rated 5 out of 5 stars
    1 week ago
    Irreplaceable Tool for daily and weekly rituals

    I enjoy the SuperSauna experience almost daily, and it’s revolutionized my wellness rituals to the point where I am building a wellness community space with a circuit of practices that taps into this tool’s unique ability to have such an expansive impact on all of the systems of the body. Our cells and our bodies crave the healing power of this tool, and I couldn’t be more excited to share this with everyone I know.

    QualityRated 2.0 on a scale of minus 2 to 2
    Ease of SetupRated 2.0 on a scale of minus 2 to 2
    I Use ItRated 1.0 on a scale of minus 2 to 2
    ExpectationsRated 2.0 on a scale of minus 2 to 2
  • LD
    Laura D.
    Verified Buyer
    I recommend this product
    SilverLining™? No
    Benefits I Notice Detox, Radiant Skin, Improved Sleep, Pain Reduction, More Energy
    My Favorite Features USA-Handcrafted Quality, Combining Light & Heat Therapy, Convenience of Sauna at Home, Ritual for Mindfulness, Quick Sweating
    Age 50-59
    Rated 5 out of 5 stars
    1 month ago
    Missed my sauna while on vacation

    I may have missed my sauna just as much as my husband while on an extended vacation! It is so calming, and yet so invigorating. Looking forward to my next session tomorrow morning.

    QualityRated 2.0 on a scale of minus 2 to 2
    Ease of SetupRated 1.0 on a scale of minus 2 to 2
    I Use ItRated 2.0 on a scale of minus 2 to 2
    ExpectationsRated 2.0 on a scale of minus 2 to 2
  • AR
    April R.
    Verified Buyer
    I recommend this product
    Benefits I Notice Detox, Radiant Skin, Improved Mental Health/Mood, Better Physical Performance
    My Favorite Features Quick Sweating, Portability, Grounding, Combining Light & Heat Therapy, Convenience of Sauna at Home
    Age 40-49
    Rated 5 out of 5 stars
    11 months ago
    My tiny sanctuary

    I have fallen in love with my tiny sanctuary. I use it after a work out as it will increase RBC production. There by mimicking altitude workouts. It’s a great way to sweat and reset. I like to sit there about 20 minutes and read a book. Preferably one you don’t mind getting sweaty.

    QualityRated 1.0 on a scale of minus 2 to 2
    Ease of SetupRated 1.0 on a scale of minus 2 to 2
    I Use ItRated 1.0 on a scale of minus 2 to 2
    ExpectationsRated 1.0 on a scale of minus 2 to 2

The FireLight® Infrared Sauna FAQ

Curious about how the FireLight® Sauna works—and why it feels so profoundly different? This isn’t just a sauna. It’s a full-spectrum sanctuary rooted in biology, crafted with intention, and designed to support deep cellular healing. Below, we explore the deeper questions—about heat, light, posture, setup, and the subtle mechanics of transformation—so you can understand not just how to use it, but how to truly benefit from it.

How does the FireLight® Sauna compare to a far-infrared (FIR) sauna?

All saunas aim to raise your core body temperature, but how they do it makes all the difference.

Far-infrared (FIR) saunas use longer wavelengths (typically 3000+ nm) that are absorbed mostly by water, which means they primarily heat the surface of your skin. This can make sessions slower and less efficient, often requiring long preheat times—sometimes 40 minutes or more. FIR light also doesn’t activate photobiomodulation, because our bodies don’t have light-sensitive receptors (chromophores) for those wavelengths.

To compensate, some FIR saunas add red or near-infrared LED panels. But LEDs are flickery, narrow-spectrum, and lack the therapeutic heat and broad-spectrum harmony of incandescent light.

Our FireLight® Sauna uses primarily near infrared (NIR) incandescent light (700–1500 nm), which penetrates deeper into tissue, raises your core temperature faster, and delivers full-spectrum radiant heat—just like sunlight, but without the UV. This supports real photobiomodulation, full-body detox, and deep cellular rejuvenation.

In short:

  • FIR: Slower, surface-level heating. No photobiomodulation.
  • FireLight®: Deep heat, fast sessions, real light therapy.

Built to mimic nature. Backed by biology. Designed to transform.

Why does the FireLight® Sauna have a canvas enclosure instead of wood?

Because it’s smarter, safer, and more beautiful in every way.

Our natural canvas enclosure makes the FireLight® Sauna portable, breathable, and tool-free to set up—ideal for apartments, guest rooms, or anywhere life flows. Unlike heavy wooden boxes, it’s easy to move, won’t off-gas toxins, and won’t trap moisture over time. In fact, most wooden saunas are prone to mold. Ours isn’t. The fabric is washable, air-permeable, and naturally resistant to buildup.

But don’t mistake lightness for fragility. The canvas is double-layered, tightly woven, and incredibly durable, providing excellent insulation that rivals traditional wood saunas. It holds heat beautifully while staying gentle on the senses.

Aesthetically, it’s a return to something ancient and essential: simple materials, honest construction, and a sanctuary that honors your nervous system. Add the SilverLining™ upgrade, and you’ve got a Faraday-shielded space free from EMFs, static, and interference.

Minimal footprint. Maximum healing. This is the future of sauna design, rooted in tradition, refined for modern life.

Will the FireLight® Sauna make me sweat? How hot does it get?

Yes—intensely and efficiently. You’ll start sweating within just a few minutes, and you’ll keep sweating for the duration of your session.

The FireLight® Sauna uses radiant near infrared heat (thermal near infrared 980 - 1500 nm) that penetrates deep into your tissues, raising your core body temperature from the inside out. Unlike traditional or far-infrared saunas, which heat the air around you, FireLight® heats you directly—so you’re not sitting in a box of stifling air, gasping for breath. It feels more like basking in the sun than sitting in a steam room.

In the Classic Sauna (4 bulbs), most people complete a full session in about 20–30 minutes. In the SuperSauna (7 bulbs), it’s closer to 15–20. No preheating needed. Just step in, switch on, and your body gets to work.

The result? A steady, sustained sweat that feels clean, grounded, and deeply invigorating—without the lung-scorching heat.

What are the FireLight® Sauna’s electrical requirements?

All FireLight® Saunas are plug-and-play—no electrician needed. We offer 120 V and 240 V versions, depending on where in the world you’ll be using your sauna.

For 120 V Countries (e.g. USA, Canada):
Choose the USA Plug. Your Hearth ships with 120 V FireLight® Bulbs and a standard plug adapter. Both the Classic and SuperSauna models work with a standard wall outlet, using a standard 15 A, 120 V circuit.

For 220–240 V Countries (Europe, Asia, Australia, New Zealand, Africa, the Middle East, Brazil, India, and others):
Choose the plug option that matches your country: EURO, UK, SWISS, AU/NZ, BRAZIL, or INDIA. Your Hearth will ship with 240 V FireLight® Bulbs and the correct plug adapter. Both the Classic and SuperSauna models work on a standard 8 A or 10 A, 220-240 V circuit—no rewiring required.

Still not sure? Just check the voltage printed on your wall outlet or reach out to our team. We’ll make sure you get exactly what you need.

Why can’t I lie down in the FireLight® Sauna?

Because lying down makes it passive. Sitting upright makes it powerful.

The FireLight® Sauna is designed to engage your whole system—not just warm you up. When you sit upright with good posture and rotate slowly, you get full-body exposure, enhanced lymphatic flow, and deeper light absorption. Your breath opens, your spine aligns, and your detox pathways work more effectively.

Lying down reduces circulation, collapses your posture, and limits your body’s ability to sweat and release. It may feel relaxing, but it misses the point. This is active healing, not nap time.

Think of it less like lounging—and more like aligning. Upright. Present. Fully lit.

Do I need a special stool or chair in the sauna?

Yes, and we’ve designed one that’s pretty much perfect.

The FireLight® Sauna comes with our signature Basswood Sauna Stool, crafted specifically to support your posture and optimize your session. It’s the right height, the right shape, and made from the right material: lightweight, non-toxic, and naturally grounding.

Sitting upright on the stool keeps your spine aligned and your heart open, allowing for better breath, deeper parasympathetic activation, and full-body light exposure as you rotate. The seat is gently curved for comfort and stability, and it stores flat when not in use.

It may seem like a small detail, but once you try it, you'll understand: this stool changes everything.

Do I rotate my body during my sauna session?

Yes—and it’s a key part of how SaunaSpace works.

Our saunas are designed for dynamic, full-body exposure. As you gently rotate throughout your session, each side of your body receives direct, radiant light—no need for extra bulbs or longer sessions.

There’s no strict rule. Most people rotate every 3 to 5 minutes, or simply whenever it feels right. Some turn in quarters, others do a slow side-to-side flow. Let your body guide the rhythm.

Beyond even exposure, rotation creates thermal contrast—while one side heats, the other cools slightly. This activates circulation and drives heat deeper into your tissues, amplifying the internal healing response.

In the SuperSauna® (7 bulbs), most people reach a 3°F core temperature increase (plus about a pound of water loss) in just 15 minutes. In the Classic Sauna (4 bulbs), it takes about 20–30 minutes. No preheat, no steam, no gasping—just real, radiant heat that moves with you.

How much does it cost to operate the FireLight® Sauna?

Not much, especially for something that supports your detox, boosts your circulation, calms your nervous system, and leaves you glowing.

The Classic Sauna (4 bulbs, powered by a Hearth™ Quartet) uses 1000W, which comes out to about 16¢ per hour based on average U.S. energy rates.

The SuperSauna (7 bulbs, powered by a Hearth™ Quartet and a Hearth™ Trio) uses 1750W, costing around 29¢ per hour.

That’s less than a load of laundry, and infinitely more restorative.

Can I set up the sauna by myself? How hard is it, really?

You can absolutely do it yourself—and most people do.

Every FireLight® Sauna is designed for easy, tool-free assembly. Just unbox, unzip, and follow the simple steps. Setup takes about 20-40 minutes, quicker if you’ve done it before.

No contractors, no confusing instructions, and no need to drill holes in your walls. It’s designed to go up and down as needed, whether you’re moving houses or just rearranging a room. And when not in use, it packs flat for low-profile storage.

Watch the Classic Sauna how to set up video, and also the SuperSauna how to setup video.

What if I don’t have much space?

You don’t need a biohacking suite, though it would go well there.

The FireLight® Sauna was designed to fit beautifully into real homes. Both the Classic and SuperSauna share the same compact, trapezoidal footprint—52" x 52" at the front, narrowing to 24" at the back. It tucks easily into bedrooms, home offices, guest rooms, or a quiet corner of your studio.

There’s no plumbing, ventilation, or special wiring required—and no lingering steam or humidity. When you’re done, just unzip the door and let the warmth fade. Many people leave the lights on for a few extra minutes to gently dry the stool and mat covers. That’s all it takes.

Clean. Self-contained. Elegantly efficient.

What does it feel like to sit inside?

Peaceful. Warm. Surprisingly profound.

The inside of the FireLight® Sauna is a soft cocoon of natural materials: organic canvas, raw basswood, and radiant light. No harsh lights, no beeping electronics, no glass screens or buzzing panels.

It feels like sunlight on your skin—but deeper. The warmth penetrates your muscles and bones without overwhelming your lungs. Most people describe it as grounding, comforting, and a little bit addictive.

Is the sauna loud? Does anything buzz or beep?

Nope. It’s completely silent.

There are no fans, no electronics, and no motors, just pure incandescent light, gently heating your body. If you want to listen to music or meditate while inside, you’ll have a perfectly quiet space to do so.

How long does it take to heat up?

Zero minutes.

The moment you turn it on, the FireLight® Bulbs begin emitting both heat and light. You can step in immediately—no waiting, no warm-up cycle. Most people start sweating within 5 minutes.

Can I leave it set up?

Yes—and many people do.

The sauna is designed to be a permanent part of your space, even if it’s not in a spa room. Its minimalist footprint and organic aesthetic make it easy to integrate into a bedroom or studio.

But if you do need to take it down, it’s easy to disassemble and store flat.

Is it safe for people who are sensitive to heat or EMFs?

That’s exactly who we designed it for.

Because the FireLight® Sauna heats you directly—not the air—you’re less likely to feel lightheaded or overwhelmed, even if you’re heat-sensitive. And with the SilverLining™ upgrade, you get full EMF shielding, turning your sauna into a grounded Faraday space that’s ideal for people with EHS, mold illness, or nervous system dysregulation.

Can I use it while fasting, detoxing, or on a protocol?

Yes, and it can actually enhance your results.

Near infrared light supports mitochondrial energy, lymphatic flow, and detoxification pathways, making it an ideal companion to structured wellness protocols. Just make sure to hydrate well, support your electrolytes, and ease into it if your system is already under stress.

Should I wear clothing?

As little as possible.

The more skin exposed, the more light and heat your body receives. Most people go nude or wear a light cotton towel. No synthetic fabrics (they can block light or off-gas). Just keep it simple, breathable, and comfortable.

How long do the FireLight® Bulbs last—and what happens when they burn out?

Each FireLight® Bulb is built to last 5,000 hours, which usually means 5 to 10 years of consistent home use. And when the time comes? Replacing one is as easy as twisting in a lightbulb—literally.

No tools. No technician. Just a quick swap, and you’re glowing again.

If a bulb burns out within five years, it’s fully covered under our warranty. After that, we offer replacements for just $95—because investing in your health shouldn’t mean surprise costs.

This is what long-term care looks like: durable parts, simple design, and support that doesn’t stop after checkout.