Short answer: a traditional sauna heats the air with a stove and hot rocks, typically to about 150-195°F, and lets you pour water for steam. An infrared sauna warms your body directly with panel heaters at a gentler 120-140°F, with no steam. Infrared cabins cost less to buy and run and plug into ordinary 120V power; traditional saunas give the classic hot, steamy experience but need a 240V circuit. Pick by the heat you enjoy, your space and your wiring.
If you're shopping for a home infrared sauna or a traditional sauna, here's how the two actually compare.
How Each One Heats You
Traditional Saunas: Heating the Air Around You
A traditional (Finnish-style) sauna heats a pile of rocks with an electric or wood-fired stove; the hot rocks warm the air in the room, and you can pour water over them for a burst of steam, called löyly, which raises the humidity.
Air temperature: about 150–195°F (65–90°C)
Humidity: adjustable, from dry to steamy depending on how much water you pour
Heat-up time: roughly 30–60 minutes, depending on the heater, room size and how hot you want it
Infrared Saunas: Heating Your Body Directly
An infrared sauna uses carbon or ceramic panels to warm your body directly with radiant heat (the kind you feel from sunshine, without the UV), rather than heating all the air. Most home cabins are far infrared; full spectrum models add near and mid infrared. Our full spectrum vs far infrared guide explains the difference.
Air temperature: about 120–140°F (49–60°C); most home cabins top out at 140°F
Humidity: low; never pour water in an infrared cabin
Heat-up time: about 20 minutes on many models (several makers list a 20-minute preheat), longer in a cold room
Infrared vs Traditional: Side-by-Side
| Traditional | Infrared | |
|---|---|---|
| Air temperature | 150–195°F | 120–140°F |
| Heat-up time | 30–60 min | About 20 min |
| Humidity / steam | Yes, adjustable | No |
| Heater power (home cabins) | About 3–8 kW stove | About 1.6–2.4 kW of panels |
| Electrical | Dedicated 240V circuit, sized to the heater (often 20–40A) | 120V: small cabins on a 15A outlet, 3–4 person cabins on a dedicated 20A circuit |
| Cabin height | Often about 7 ft | Often about 6 ft to 6 ft 4 in |
| Starting price in our catalog (Nov 2026) | About $3,000–$3,500 for a 2-person indoor cabin | About $1,400 for a 1-person cabin, $1,900 for a compact 2-person |
Some saunas, called hybrids, combine an infrared system with a traditional stove so you can choose either style.
What Does Each Cost to Run?
At the 2026 U.S. average residential electricity price of about 18 cents per kWh (EIA), an hour at full power costs roughly:
- Infrared (1.6–2.4 kW): about 30 to 45 cents
- Traditional (3–8 kW): about 55 cents to $1.45, plus the longer heat-up before you get in
Both heaters cycle on and off once the room is hot, so a real session usually costs less than these maximums. Your local rate will change the numbers, but the gap between the two stays about the same.
What the Research Actually Supports
Regular sauna use (the research is mostly on traditional Finnish saunas) has been linked to lower cardiovascular mortality risk in long-term population studies, including one published in JAMA Internal Medicine. That's an association from observational data, not a guarantee for any individual, and it doesn't tell us whether infrared saunas produce the same effect, since far less research exists on infrared specifically.
On "detox": sweat is mostly water and electrolytes. Your liver and kidneys do the actual work of filtering your blood, and there's no strong evidence that sweating in either type of sauna meaningfully increases toxin elimination. Treat sauna use as a comfort and relaxation habit, not a substitute for medical treatment.
Pros and Cons
Traditional Sauna
Pros: the classic high-heat, steam-capable experience; well suited to groups; the most-studied sauna format.
Cons: intense heat isn't comfortable for everyone; 30–60 minute heat-up; higher electricity use; needs a 240V circuit, usually added by an electrician; costs more to buy.
Infrared Sauna
Pros: gentler air temperature; heats up faster; lower running cost; runs on 120V household power; lower starting price.
Cons: no steam or humidity; tops out around 140°F; less long-term research than traditional saunas; bigger cabins still need a dedicated 20A circuit.
Sauna Safety
Both types are generally safe for healthy adults when used sensibly: stay hydrated, start with 5–10 minute sessions and work up gradually, avoid alcohol before or during use, and get out if you feel dizzy or unwell. The Harvard Medical School guide advises people with uncontrolled high blood pressure or heart disease to check with their doctor first. Anyone who is pregnant, ill or feverish, or has a heart condition should get medical advice before using either type. Our sauna safety guide covers session times and warning signs.
Which Should You Choose?
Pick traditional if: you want the classic hot, steam-capable experience, you're outfitting a space for group use, and you have the ceiling height and the budget for a 240V circuit.
Pick infrared if: you find high heat hard to tolerate, you want a faster heat-up, lower running cost and lower price, or you're fitting a cabin into a smaller indoor space on household power. Our best home infrared saunas guide has picks by size, and the sauna sizing guide helps you find the right footprint for either type.
The Bottom Line
Neither type is objectively "better." A traditional sauna heats the room around you for an intense, time-tested steam experience; an infrared sauna heats your body directly at a gentler temperature, with a faster heat-up, lower running cost and simpler wiring. Match the type to your heat tolerance, space, budget and electrical setup, and either one can become a regular part of your routine.
