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A steam sauna is a traditional sauna — one that uses a heater loaded with stones that you pour water over to create steam. This is the classic Finnish sauna experience known as löyly ("LOH-loo"), and it's what most people picture when they think of a sauna: hot stones, a ladle of water, a burst of steam, and that rush of humid heat that opens your pores and sends sweat streaming. The key distinction is between steam saunas (traditional) and infrared saunas, which use radiant heat panels and don't produce steam. Both deliver real health benefits, but the experience is fundamentally different — steam saunas run hotter (150–190°F), create humidity you can control, and provide the ritual of löyly that has defined sauna culture for centuries.
Every steam sauna has three core components: an insulated cabin, a heater, and stones. The heater — either electric or wood-fired — heats a bed of sauna stones to extreme temperatures. The stones store and radiate heat, warming the cabin to 150–190°F. When you pour water over the stones, it flash-evaporates into steam, spiking the humidity and the perceived heat intensity. You control the steam — a little water for a gentle rise, a full ladle for an intense burst. This is the defining feature that separates steam saunas from every other type of heat therapy.
Barrel Saunas — The most popular outdoor steam sauna shape. The curved walls heat efficiently (less wasted airspace than a rectangular room), shed rain and snow naturally, and look striking in any backyard. We carry cedar barrels from Dundalk LeisureCraft, SaunaLife, and True North in lengths from 4' (2-person) to 8'+ (6–8 person). Most pair with an electric heater; some are available as wood-fired. Browse all barrel saunas.
Cabin Saunas — Traditional rectangular structures that resemble a small building. Cabin saunas offer more interior space and layout flexibility — taller ceilings, wider benches, room for multiple bench levels. Ideal for families, entertaining, or anyone who wants the most spacious bathing area. Dundalk's Granby, Georgian, and Kota designs plus Auroom's modern European cabins are the standouts. Browse all cabin saunas.
Cube Saunas — SaunaLife's signature design — a compact, modern box shape with a flat roof and clean lines. Cubes maximize interior volume relative to footprint and suit contemporary outdoor spaces. Available in 1–2 person through 6-person sizes. Browse all cube saunas.
Pod Saunas — Dundalk's curved-roof pod and Luna designs offer a distinctive aesthetic somewhere between a barrel and a cabin. The elongated curved shape provides generous interior height with efficient heating. Browse all pod saunas.
Indoor Sauna Room Kits — Pre-cut wall panels, ceiling panels, benches, and trim designed to convert a closet, spare room, or basement corner into a traditional steam sauna. Pair with any wall-mounted electric heater. Browse all DIY sauna room kits.
If you want both steam and infrared without buying two separate saunas, hybrid saunas combine a traditional heater with stones alongside infrared heating panels in a single cabin. You can run them independently (steam only, infrared only) or together for a combined experience. Finnmark Designs builds the most popular hybrids: the FD-KN004 (2-person) and FD-KN005 Trinity (4-person), both with full spectrum infrared, a traditional heater for löyly steam, red light therapy, and WiFi controls. These are the only saunas on the market that give you genuine steam capability and infrared in one unit.
The heater is the heart of a steam sauna — it determines how fast you reach temperature, how much stone mass is available for steam, and what fuel source you'll use. Electric heaters are the most common choice: plug in (120V for small saunas) or hardwire (240V for most), set your temperature, and go. Brands like Harvia, HUUM, and Saunum offer wall-mounted, floor-standing, and pillar-style heaters in sizes from 3–20 kW. Wood-fired stoves provide the off-grid, traditional experience — no electricity required, with the crackling fire adding to the ritual. We carry wood-burning stoves from Harvia, Scandia, and others in complete heater packages that include the stove, chimney, stones, and mounting hardware.
For the ultimate steam experience, the Harvia Virta Combi combines a traditional electric heater with a built-in steam generator — it heats stones for löyly and also produces continuous steam independently, giving you full control over both temperature and humidity without manual water pouring. Use our heater sizing calculator to find the right kW for your room size.
Steam saunas (traditional) and infrared saunas both promote sweating, relaxation, and cardiovascular benefits, but the experience is very different. Steam saunas heat the air to 150–190°F and let you add humidity through löyly — the heat is intense, enveloping, and felt immediately. Infrared saunas operate at lower air temperatures (120–150°F) and use radiant panels to heat your body directly — the sensation is gentler, more gradual, and completely dry. If you want authentic Finnish sauna culture with the ritual of water on stones, a steam sauna is the only option that delivers that. If you prefer milder temperatures and longer sessions, infrared is a great alternative. And if you can't decide, a hybrid sauna gives you both. For a deeper comparison, read our guide: Sauna vs. Steam Room: Which Burns More Fat?
No. A steam sauna (traditional sauna) uses dry heat from a heater and stones, with steam created only when you pour water on the stones — you control the humidity. A steam room uses a dedicated steam generator to fill an enclosed, tile-lined room with 100% humidity at lower temperatures (110–120°F). Steam rooms require waterproof construction and commercial-grade generators. Traditional steam saunas are wood-lined and much more practical for residential installation. For a full comparison, see our guide: Steam Shower vs. Steam Sauna: Key Differences.
The closest residential option is the Harvia Virta Combi heater, which combines a traditional stone heater with a built-in steam generator. This lets you produce continuous steam in your sauna cabin without the tile-lined construction a dedicated steam room requires. It's the most popular solution for people searching for a "steam shower sauna combo" — you get genuine steam production in a standard wood-lined sauna.
Regular steam sauna use is associated with improved cardiovascular health (increased heart rate and circulation), muscle recovery, stress reduction, improved sleep, and skin health through deep sweating. The humidity from löyly adds respiratory benefits — the warm, moist air can help open airways and soothe congestion. Studies from Finland, where sauna use is nearly universal, have linked regular sauna bathing to reduced risk of cardiovascular events and all-cause mortality.
Yes — hybrid saunas from Finnmark Designs (FD-KN003, FD-KN004, FD-KN005) combine a traditional heater with stones for steam, full spectrum infrared panels, and built-in red light therapy in a single cabin. These are the only saunas that give you steam, infrared, and red light in one unit. You can also add standalone red light therapy panels to any traditional sauna.
Outdoor steam sauna kits (barrel, cabin, cube) typically range from $3,000–$12,000+ depending on size, wood species, and included heater. Indoor DIY room kits start around $2,000–$4,000 for the panels and benches (heater sold separately). Heaters range from $300–$2,000+ depending on kW, brand, and features. We offer 0% APR financing for 6 months on all orders to make the investment more manageable.
Shop more: All Traditional Saunas · Outdoor Saunas · Indoor Saunas · Electric Heaters · Wood-Fired Stoves · Heater Packages · Hybrid Saunas · Sauna Stones · Buckets & Ladles · Sauna Learning Center
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