Traditional Sauna vs Infrared Sauna: Which Should You Buy?

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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, we can tell you the experience is genuinely different — and which is right depends on why you're buying.

Last reviewed: May 2026

Quick Comparison

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. 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 (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 maximize 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. Considering a wood-fired build? See our wood-burning sauna guide. More at the saunas hub.

About us: the BankrollZen team writes about home wellness hardware for BankrollZen.