Indoor Saunas
An indoor sauna is only as good as the wall you can’t see. Without real insulation and a working vapor barrier, humid air pushes into the wall cavity, and that is how a sauna quietly damages the room around it.
The indoor saunas we carry are built with mineral wool insulation and a proper air and vapor barrier, so they heat better, last longer, and stay safe inside your home.Any of these can be custom-ordered from Europe to spec.
Most are in stock now, shipping from Chicago with tariffs already handled. We’ve built rooms like these with customers across the country, so the guidance you get comes from someone who has held the level, not just sold the box. Questions about your space? (844) 565-1113.
Showing all 16 results
Auroom Baia – Indoor Sauna Kit With Floor
Price range: $7,990.00 through $8,990.00You sit straight enough. The Auroom Baia 2-person indoor sauna is made for real rest. Its sculpted wavy bench keeps your body more level in the heat, easing the typical hot up high and cooler down low effect for a calmer, more balanced temperature and deeper comfort. Built with Auroom craftsmanship, the contoured bench is sturdy enough for NFL players, and comfortable for bathers up to 6’5″. Baia leans meditative and private, with an efficient design that helps the room heat evenly so you can relax, unwind, and feel the difference.
Auroom Baia Glass – Indoor Sauna Kit With Floor
$8,990.00One of our most popular indoor sauna kits is now available with a glass front! The wavy bench is comfortable and sturdy for anyone up to 6’5″, but it also allows you to experience even temperatures and rolling humidity from head to toe. The Auroom Baia is a world-class sauna experience like no other.
Auroom Cala Glass Mini 1-Person Indoor Sauna With Floor
$7,190.00Who says you can’t get an authentic, safe, and refreshing sauna experience in a tight space? The Auroom Cala Glass Mini Sauna Kit, the smallest sauna kit in our catalog, is the ultimate one-person, energy-efficient sauna. The Glass Mini comes with two premium sauna wood finishes – aspen and Thermo-aspen, offering aesthetic flexibility to match your interior. It features a functional full-glass front wall and door, and a DIY, modular design that makes assembly simple.
Bring warmth and style to any space, with a Cala Glass Mini.
Auroom Cala Wood – Indoor Sauna Kit With Floor Kit
$7,790.00Auroom Cala Wood is a customer favorite for a meditative indoor sauna experience that fits almost anywhere. You’ll breathe easy with naturally modified wood, proper ventilation, and a preassembled wall assembly engineered to efficiently dry after use. This easy-to-assemble home sauna is built to last a lifetime of daily use – and you’ll actually want to use it every day.
Find out why the Auroom Cala is North America’s most popular insulated sauna kit.
Auroom Familia – Indoor Sauna Kit With Floor
Price range: $11,990.00 through $16,490.00The perfect home or gym sauna, for those who want maximum seating and no front glass wall. The Auroom Familia comes in 5 different sizes, with three wood species to dial in your mood. Familia is a premium indoor sauna kit that’s fully insulated, crafted to perfection, with integrated lighting.
Auroom Libera Glass – Indoor Sauna Kit With Floor Kit
Price range: $15,490.00 through $21,890.00Auroom Libera Glass is an easy-to-install, fully-insulated indoor sauna kit for a lifetime of daily, healing heat and steam. Designed with the talented Italian architect Luca Donazzolo, Libera comes in five standard sizes and your choice of the three most popular European sauna woods. It can be custom ordered along with matching wood panels for a completely custom ‘built-in’ look on any project. Libera is the indoor sauna of choice for designer homes and modern gyms.
Auroom Libera Wood – Indoor Sauna Kit With Floor Kit
Price range: $14,990.00 through $20,990.00Auroom Libera Wood is an easy-to-install, fully-insulated indoor sauna kit with a solid wood front wall for a classic, refined look. Designed with the talented Italian architect Luca Donazzolo, Libera comes in five standard sizes and your choice of three premium European sauna woods: Aspen, Alder, or Thermo-Aspen. It can be custom ordered along with matching wood panels for a completely custom ‘built-in’ look on any project. Libera Wood is the indoor sauna of choice for those who prefer the warmth and privacy of a full wood enclosure.
Auroom Vulcana – Indoor Sauna Kit With Floor
Price range: $14,900.00 through $19,990.00Add endless warmth and contrast to your life with the Auroom Vulcana Designer Sauna. This sauna has premium features for durability and performance – like an aluminum base frame and a through-glass air intake vent. Furniture-grade materials, precision manufacturing, and preinstalled conduit make it easy to come together in your home.
Finnmark Designs FD4 Trinity Hybrid Infrared AND Traditional Sauna
$7,795.00Can’t decide between short-wave infrared, long-wave infrared, red light therapy, or a traditional sauna?
The Finnmark FD-4 Trinity has all of them. Finnmark is the only infrared company that can properly pull this off, with panels designed to handle the heat and humidity of the included Finnish sauna heater with rocks.
Walls are insulated up to 4” thick with mineral wool and a radiant barrier. Western red cedar on the inside, Thermo-Aspen on the outside. Built to European sauna standards, the infrared system alone reaches 170°F, the highest IR cabin temperature in the industry.
10-year warranty. All parts stocked in North America. This is the everything sauna.
Finnmark Designs FD5 Trinity XL Infrared + Traditional Finnish Sauna Hybrid
$8,995.00We think traditional saunas are the best, but that doesn’t mean infrared doesn’t have benefits. The Finnmark FD-5 Trinity XL is the ultimate in thermal exploration.
Full-spectrum infrared (the only IR technology we trust, capable of 170°F on its own, the highest in the industry), medical-grade red light therapy, and a Harvia Finnish sauna heater with rocks and built-in controls. A lot of tools at your fingertips.
Walls are insulated up to 4” thick with mineral wool and a radiant barrier. Western red cedar on the inside, Thermo-Aspen on the outside. Built to the same European standards as the high-end saunas we sell here on the Marketplace.
10-year warranty. All parts stocked in North America.
Haljas Hele Nano Prebuilt 2-Person Sauna
$13,990.00Big dreams, small footprint. The Hele Nano gives one or two people a full glass-sauna experience in the smallest space Haljas builds, and still leaves room for the cold plunge, the shower, and the recovery corner. Furniture-grade European thermally modified wood inside, double-glazed mirrored glass outside, and it arrives assembled (trim and hardware fit on site) so you can use it the day it lands.
Change your mind about where it goes? A pallet jack is all you need to move it. With Haljas mirrored glass you keep the view and the privacy both, in the smallest footprint, without giving up a thing.
Kohler C1 Indoor Sauna | Assembly Available
Price range: $13,400.00 through $21,400.00Kohler doesn’t build saunas. They own the European company that invented the prefab one back in 1952. The C1 is KLAFS engineering with a Kohler badge: 8mm tempered glass, 2.1 inches of mineral wool insulation, obeche benches that stay cool to sit on, and a matched KLAFS FERO heater that ships already sized to each cabin (most indoor kits make you buy the heater separately and guess). Three sizes for 2, 3, or 5 people. Two finishes: warm Scandinavian Spruce, or graphite-grey cladding over a spruce interior. Set it up with a friend, or add white-glove delivery and a Kohler-trained crew assembles it on site. We sat in the C1 at its launch at IBS in Orlando and checked the heater sizing ourselves before this page went live.
ThermaSol Aalto Sauna Cabin | 9.0 kW
$23,455.00Named for Finnish architect Alvar Aalto, the cabin is ThermaSol’s design-forward indoor option. The Aalto is an indoor sauna sized for transformation: 87 by 87 inches, 83 inches tall, drops into a finished basement or spa room without drywall demo or a foundation pour. Full-height transparent panoramic glass front, 9 kW Harvia Virta behind safety rails, brushed Tyrol panel interior with Thermo-Aspen benches. Pick door side at checkout. Designed and crafted by Finland’s best, most experienced team.
ThermaSol Astra Sauna Cabin | 9.0 kW
$23,604.00Hall closet or guest-room corner? The Astra is the indoor ThermaSol model built for households that have closet-conversion space rather than a dedicated room. 85.4 by 85.4 inches with corner glass and an L-bench, so it tucks into a finished-basement nook. Same 9 kW Harvia Virta as the larger Aalto in 350 cu ft, so heat-up is faster. Brushed Tyrol panel interior, Thermo-Aspen benches, CX45 controller. Pick door side at checkout. Four-to-eight-week build, free shipping.
ThermaSol Large Lumaria Sauna Cabin | 9.0 kW
$23,648.00Honest take: most indoor sauna kits do not look like the renderings. The Lumaria Large is the exception. ThermaSol’s biggest indoor footprint, 86.6 by 86.6 inches, 360 cu ft, four to five people. Brushed Tyrol panel interior with Thermo-Aspen benches, panoramic transparent glass front, 9 kW Harvia Virta paired with the CX45 controller. Flat-packed for a finished-room install with no drywall demo. Pick door side at checkout. Four-to-eight-week build, free shipping included.
ThermaSol Medium Lumaria Sauna Cabin | 9.0 kW
$21,276.00Two to three regulars, indoor footprint. The Lumaria Medium is the mid-size ThermaSol indoor: 86.6 by 66.9 inches, 278 cu ft, with a transparent panoramic glass front and a 9 kW Harvia Virta paired with the CX45 controller. Brushed Tyrol panel walls, 24-inch Thermo-Aspen benches. Lives inside a finished room: no foundation pour, no demo. Pick door side at checkout. Designed and crafted in the USA by ThermaSol. Four-to-eight-week build, free shipping.
New to indoor kits? Our sauna kit buyer's guide covers sizing, wood, and what is in the box across every kit type.
Sauna kit questions
Can an indoor sauna kit go in a basement or garage?
Yes. Indoor kits are precut to assemble against existing framing in a basement, garage, or spare bathroom.
Measure the wall first, then size the heater to the room volume.
Does an indoor sauna kit need special electrical?
Most home saunas require a dedicated 240V circuit. Some require a separate 110v for lighting. Most heater manuals say 'No GFCI'. We recommend having your electrician run the neutral so aux circuits can be utilized. So L1, L2, N, and G (your electrician will know).
We send the spec sheet so your electrician has the numbers up front.
Will an indoor sauna damage my room?
Not when it is built right. The kits we carry use mineral wool insulation and a proper air and vapor barrier, so humid air stays out of the wall cavity.
Can I build it in a nook?
Yes, our Auroom and Kohler sauna kits are designed to give you a built in look but there are a few considerations. Most importantly, the sauna walls need a gap, typically 2" to the existing walls and that gap needs to stay ventilated.
The sauna kit can usually be built outside the nook and moved into place before the glass, door, and heater are installed. But there are quite a few considerations like wiring, access, and ventilation so let's have a chat first!
Who Builds It?
These saunas go together really well and do not require a specialist. Any duo up for the job can build most of these saunas in a day or two. The main considerations for a smooth installation are building it on a flat surface and getting the base squared out (and keeping it squared out!).
Auroom assembled every sauna in the factory to ensure everything will snap together perfectly. Kohler has a nationwide installation network. Finnmark couldn't be simpler (very DIY friendly).
If we can do it, anyone can:
https://www.youtube.com/watch?v=1esLRZfTBCc
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