Quick Answer
Traditional saunas have the larger long-term research base. Infrared saunas are easier to install, lower temperature, faster to heat up, and cheaper to run. For most home buyers, an infrared sauna wins on practicality. If you love the intense heat and steam experience or want the specific Finnish sauna protocol, traditional is the right choice.
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The choice between a traditional and infrared sauna comes down to what you value most: the proven long-term research record and authentic experience of traditional Finnish saunas, or the practicality, lower temperature, and easier installation of infrared. Having used both types, I can tell you the experience is genuinely different — and which is right depends on why you're buying.
Last tested: May 2026
Quick Comparison
| Traditional Sauna | Infrared Sauna | |
|---|---|---|
| Temperature | 150–195°F (65–90°C) | 120–140°F (49–60°C) |
| Heat-up time | 30–45 min | 10–15 min |
| How it heats | Heats air → heats body | Heats body directly |
| Steam option | Yes (löyly) | No |
| Installation | More complex, 240V, ventilation | Plug-in 240V, minimal requirements |
| Energy cost | Higher (per session) | Lower |
| Research base | Larger (Finnish longitudinal studies) | Growing, similar responses |
| Experience | Intense, humid, social | Milder, dry, individual |
| Best for | Authentic experience, steam, social use | Daily home use, lower heat tolerance |
How They Work
Traditional sauna: An electric or wood-burning heater raises the air temperature to 150–195°F. You heat up through convection — the hot air warms your skin, which raises your core temperature. Pouring water on heated rocks produces steam (löyly in Finnish) that creates a momentary spike in humidity and perceived temperature. The combination of high air temperature and steam produces intense, rapid sweating.
Infrared sauna: Infrared heating elements — panels positioned around the walls and sometimes the ceiling — emit far-infrared radiation (wavelengths in the 5–14 micron range) that is absorbed directly by the body's tissue. The air temperature stays lower (120–140°F) but core body temperature rises through direct energy absorption. Sweating is significant but the ambient environment feels less overwhelming than traditional heat.
The practical difference: in a traditional sauna at 180°F, the air itself feels hot and dense. In an infrared sauna at 135°F, the air feels warmer than a normal room but mild — the intensity comes from the thermal load on the body, not the sensation of standing in hot air.
Health Benefits: What the Research Actually Says
Both types produce meaningful health benefits. The mechanism in both cases is primarily the core body temperature rise and associated cardiovascular response — not a specific property of either heat type.
Traditional sauna research
The Finnish longitudinal research is the most impressive body of evidence. The Kuopio cohort study followed thousands of Finnish men over decades, finding that more frequent sauna use (4–7 times per week) was associated with significantly reduced risk of cardiovascular events and dementia (~verify live for specific risk reduction figures). These findings have been replicated in other large observational studies.
Infrared sauna research
The infrared-specific research base is smaller but growing. A 2025 Frontiers in Cardiovascular Medicine review highlighted infrared sauna therapy as a legitimate tool for cardiovascular health and peripheral arterial disease management. Multiple studies on chronic pain show consistent results. The UCSF depression study used full-spectrum infrared specifically.
The honest position: most of the strongest long-term evidence was generated using traditional Finnish saunas. But infrared saunas produce similar physiological responses (core temperature rise, cardiovascular strain, sweating), and newer research increasingly validates their use. The best sauna is the one you'll use 3–4 times per week consistently — and for most home buyers, that's influenced heavily by practical factors.
Practical Differences That Drive Most Buying Decisions
Heat-up time
This matters more than most buyers anticipate. If your sauna takes 45 minutes to heat up, spontaneous daily use becomes a planned event. Infrared units ready in 10–15 minutes can realistically fit into a normal evening. Over 12 months of daily use, this compounds significantly.
Installation
A 1–2 person indoor infrared sauna can be assembled and plugged in by a competent DIYer in an afternoon. It needs a 240V outlet, a level floor, and adequate ceiling height. No masonry, no special ventilation, no drain required.
A traditional sauna — whether indoor or outdoor — requires proper ventilation for steam management, typically a dedicated electrical circuit for the heater, and structural considerations. A traditional indoor installation in an existing room is a significant renovation project. An outdoor barrel sauna is more straightforward but still requires a solid, level base and electrical connection.
Temperature tolerance
At 150–185°F, a traditional sauna is intense. Many people — particularly beginners, those with lower heat tolerance, or older adults — find 10–15 minutes the maximum they can tolerate. At 120–140°F, infrared allows longer sessions that feel less aggressive. For people building a regular sauna practice, this can mean the difference between using it 3 times a week and using it daily.
The steam experience
If you want the authentic Finnish experience — the intense heat, the löyly ritual of pouring water on rocks, the social element of a hot room where everyone is sweating intensely — an infrared sauna doesn't deliver that. The steam experience is part of the culture and the sensory ritual of traditional sauna, and there is no infrared equivalent.
Running cost
Infrared saunas are more energy-efficient than traditional. A 2-person infrared unit running for 40 minutes per day typically costs $1–2 per session in electricity (~verify live for current rates). Traditional sauna heaters draw more power and require longer sessions to reach operating temperature, pushing cost higher.
Who Should Buy Each Type
Buy a traditional sauna if:
- The steam experience (löyly) is important to you
- You want the classic Finnish protocol — high heat, short intense sessions
- You're installing outdoors and want a barrel sauna for aesthetic reasons
- You have an existing steam room or are doing a full renovation
- The social/communal aspect of high-heat sauna matters to you
Buy an infrared sauna if:
- You want easy daily use without long heat-up times
- Your heat tolerance is moderate and 180°F sounds unmanageable
- You're installing indoors and need a plug-in solution
- Energy cost and convenience are decision factors
- You want to maximise consistency of use over the year
If you genuinely can't decide: choose based on which protocol you'll use more. A traditional sauna used twice a week is worse for health outcomes than an infrared sauna used five times a week.
Verdict
For most home buyers, infrared wins on practicality — faster heat-up, lower running cost, easier installation, and operating temperatures accessible enough to sustain a 30–40 minute daily practice. Dr. Andrew Huberman uses a traditional sauna in his own routine, but he notes that the critical variable is consistency: the sauna that gets used 4+ times per week produces better health outcomes than the one used twice. For most home setups, infrared has the lower friction.
For buyers with a dedicated outdoor structure who want the authentic Finnish experience — the intense heat, the löyly ritual, the social element — a traditional barrel sauna delivers something an infrared unit genuinely cannot replicate.
For specific models at both types: best home saunas.
FAQ
Is traditional or infrared sauna better for health?
Both produce meaningful health benefits. Traditional saunas have a larger long-term evidence base (Finnish observational studies). The best sauna for health is the one you'll use consistently.
What temperature does a traditional sauna reach?
150–195°F (65–90°C). Significantly hotter than infrared.
What temperature does an infrared sauna reach?
120–140°F (49–60°C). Lower ambient temperature, but still produces significant core body temperature rise.
Which is cheaper to buy?
Comparable for similar quality and size. Entry-level infrared from ~$1,000; traditional barrel saunas from ~$1,500. High-end custom traditional installations run higher.
Which is easier to install?
Infrared saunas generally — most plug into a 240V outlet with no special ventilation or masonry required.
Does infrared produce steam?
No. Steam (löyly) is specific to traditional Finnish saunas.
Which heats up faster?
Infrared: 10–15 minutes. Traditional: 30–45 minutes.
For specific model recommendations: best home saunas and home sauna cost guide. For the benefits research: infrared sauna benefits. More at the saunas hub.
About the author: Neil Russell writes about home wellness hardware for BankrollZen.
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Frequently Asked Questions
Is a traditional sauna or infrared sauna better for health?
Both types produce meaningful health benefits — the research supports cardiovascular improvement, pain relief, and recovery benefits for sauna use generally. Traditional saunas have a larger long-term evidence base (particularly Finnish observational studies). Infrared sauna-specific research is growing and shows similar physiological responses. The best sauna for health is the one you'll actually use consistently.
What temperature does a traditional sauna reach?
Traditional Finnish saunas operate at 150–195°F (65–90°C). The high ambient temperature heats the body through convection, producing intense sweating and significant cardiovascular response. Adding water to the heated rocks creates steam (löyly) that momentarily raises perceived temperature and humidity.
What temperature does an infrared sauna reach?
Infrared saunas operate at 120–140°F (49–60°C) — more than 30°F cooler than the minimum traditional sauna temperature. The lower ambient temperature makes infrared saunas more accessible for people who find 185°F overwhelming, while still producing core body temperature rise through direct infrared absorption.
Which type of sauna is cheaper to buy?
Entry-level infrared saunas start around $1,000–$1,500 for a 1–2 person indoor unit. Quality infrared saunas in the 2-person range run $2,000–$4,000. Traditional barrel saunas and outdoor units start around $1,500–$2,500 for basic kits. High-end custom traditional installations can run $5,000–$20,000+. For equivalent quality and capacity, the types are broadly comparable in price.
Which sauna type is easier to install at home?
Infrared saunas are generally easier. Most 1–2 person infrared units plug into a standard 240V outlet and require no plumbing, no special ventilation, and no masonry work. Traditional saunas need proper ventilation, typically require a dedicated electrical circuit for the heater, and outdoor barrel saunas need a weather-appropriate base. A DIY-confident homeowner can install most infrared units in an afternoon.
Does an infrared sauna produce steam?
No. Infrared saunas produce dry heat with no steam option. Traditional Finnish saunas produce steam by pouring water over hot rocks (löyly). If the steam and humidity experience is important to you, or if you enjoy the ritual of pouring water, a traditional sauna is the only option.
Which sauna heats up faster?
Infrared saunas heat up in approximately 10–15 minutes. Traditional saunas typically need 30–45 minutes to fully heat the air and stones to operating temperature. For spontaneous daily use, the shorter heat-up time of infrared is a meaningful practical advantage.
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