Infrared vs. Traditional Sauna: Two Appliances That Heat You Two Different Ways
A traditional sauna heats the air to roughly 170-195°F, and the hot air heats you. An infrared cabin warms your body directly with radiant heat, usually with the air at 120-150°F. Most of the famous sauna research, including the Finnish studies, was done in traditional saunas, not infrared cabins.
"Sauna" gets used as one word for two different appliances. A traditional sauna heats the air in a room and lets that air heat you. An infrared cabin skips the air and warms your body directly. Same word, different mechanism, and most of the research people quote about saunas was done in one of them, not both.
What does each one actually do?
A traditional sauna uses an electric or wood-fired heater with a pile of rocks. The heater warms the room, and the hot air warms you, the same way an oven does. Water on the rocks makes a burst of steam and raises the humidity for a few minutes. Because the whole room has to get hot, the air runs high, and the heater draws enough power that most home installs need a dedicated circuit.
An infrared cabin uses panels that give off infrared heat your body absorbs directly instead of heating the air first. The cabin stays cooler while you still warm up, which is why an infrared session can feel demanding even though the air is cooler than in a traditional sauna. Most infrared cabins run on a standard household outlet.
Neither is a stronger or weaker version of the other. They are different appliances that warm you up by different routes.
Where does the research actually come from?
The sauna research people cite most is the Finnish cohort work that associated regular sauna use with lower rates of sudden cardiac death and dementia. It was done in traditional saunas, not infrared cabins (Laukkanen and colleagues, 2015 and 2017). Those studies used the traditional Finnish format at high air temperature, several times a week, over years.
Infrared saunas have their own, smaller body of research, built mostly from shorter and smaller studies instead of the large 20-year designs behind the traditional sauna findings. The idea that heat triggers protective proteins in your cells, described in a review by Kregel (2002), is thought to apply to sustained heat in general, not to one type of sauna. But the associations with sudden cardiac death and dementia that get quoted constantly are traditional sauna findings. Carrying them over to infrared as if both types had been tested the same way is not something the research supports.
What actually differs when you compare units?
- Air temperature. Traditional: 170-195°F. Infrared: typically 120-150°F, sometimes lower for far-infrared-only cabins.
- Power and installation. Traditional heaters usually need 220 to 240 volts and a dedicated circuit. Most infrared cabins run on a standard 120-volt outlet.
- Warm-up time. Traditional saunas take longer to heat a whole room. Infrared cabins are typically ready in 10 to 20 minutes.
- Humidity. Traditional saunas can add steam. Infrared is a dry heat with no steam option.
None of this makes one the "real" sauna and the other a substitute. It means the study you are quoting and the unit you are buying need to match, and right now, for the heart and brain associations specifically, they usually do not.
Where does this fit a protocol?
Both types fall under the same heat slot in a Peak Regenerate protocol, with session length and target temperature adjusted for whichever you own. Find My Protocol matches your sleep, recovery, activity level, schedule, and heat and cold experience to a starting point and a week by week plan.
Common questions
What is the difference between an infrared and a traditional sauna?
A traditional sauna uses an electric or wood-fired heater and rocks to heat the room's air. An infrared cabin uses panels that give off heat your body absorbs directly, so the room stays cooler.
Which uses more power, infrared or traditional?
Traditional heaters usually need 220 to 240 volts and a dedicated circuit. Most infrared cabins run on a standard 120-volt outlet.
How long does each type take to warm up?
Traditional saunas take longer to heat a whole room. Infrared cabins are typically ready in 10 to 20 minutes.
Can you add steam to an infrared sauna?
No. Infrared is a dry heat. Traditional saunas can add steam by pouring water on the rocks.
Does the sauna research apply to infrared saunas?
The heart and dementia associations are traditional sauna findings. Carrying them over to infrared as if both had been tested the same way is not something the research supports.
Where to start
Find My Protocol matches your answers to a starting point and a week by week plan. It takes about two minutes and does not require a purchase.
References
- Laukkanen T, et al. JAMA Internal Medicine. 2015;175(4):542 to 548. PMID 25705824. pubmed.ncbi.nlm.nih.gov/25705824
- Laukkanen JA, et al. Age and Ageing. 2017;46(2):245 to 249. PMID 27932366. pubmed.ncbi.nlm.nih.gov/27932366
- Kregel KC. Journal of Applied Physiology. 2002;92(5):2177 to 2186. PMID 11960972. pubmed.ncbi.nlm.nih.gov/11960972
For the full protocol details, see the protocol guide.
The products sold by Peak Regenerate are sold for general wellness use only and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. This article is for educational and informational purposes only. Talk to your physician before starting any heat, cold, or light exposure routine, especially if you have a heart condition, are pregnant, or take prescription medication. Individual results vary. Peak Regenerate does not provide medical services through this platform.
