Infrared vs traditional sauna
Two different experiences that share a word. The decision usually comes down to one thing nobody puts in the comparison tables: whether you can get 240 V to the room.
The short verdict: if you can run a 240 V circuit and you want the sensation of a hot room you can throw water in, buy traditional. If you cannot, or you want lower-temperature sessions on a standard-ish circuit, buy infrared. Everything below is the reasoning behind that, because the two are far more different than the shared word 'sauna' suggests.
| Infrared | Traditional | |
|---|---|---|
| Operating temperature | 120–150 °F | 175–195 °F |
| How the heat reaches you | Radiant, directly onto the body | Hot air and radiant from the stove |
| Humidity | Dry, and cannot be changed | Dry or wet — you control it |
| Throw water on the stones | No | Yes |
| Typical power draw | 1,500–3,600 W | 4.5–8 kW |
| Circuit | 20 A dedicated, or 220 V for full spectrum | 240 V, always |
| Warm-up from cold | 30–45 min | 30–45 min |
| Wood-fired option | No | Yes — no electricity at all |
Temperature ranges are the operating ranges these categories are designed around. Power figures are from the listings and heater specifications cited at the bottom of this page.
The experience is genuinely different
An infrared cabin warms your body while the air stays comparatively cool. You sweat, and the air you breathe is easy. A traditional sauna heats the room, so the air itself is hot — the heat is on your face, in your lungs, everywhere. Throw water on the stones and the humidity spike makes it feel dramatically hotter still.
People rarely find these interchangeable. Someone who wants the intensity of a Finnish sauna generally finds infrared underwhelming; someone who finds 190 °F oppressive often prefers infrared and is right to. Neither reaction is wrong, and neither product is a lesser version of the other.
Choose infrared if...
- A 240 V circuit is genuinely out of reach — this is the most common and most legitimate reason, and it settles the question on its own.
- You want longer, lower-temperature sessions. Infrared's lower air temperature makes 40-minute sessions comfortable in a way 190 °F does not.
- Your space is a finished basement or spare room. Infrared cabins need less ventilation engineering and no drainage consideration.
- You want near-infrared or red light built in — an option that only exists in the infrared category.
Choose traditional if...
- You want to throw water. This is the single feature infrared cannot ever offer, and for many people it is the whole point.
- You have used a real sauna and want that. Nothing in the infrared category reproduces it.
- You want a wood-fired option. No circuit at all, at the cost of a 45-minute lead time — see wood-burning vs electric.
- Your sauna is going outdoors. Traditional dominates the outdoor category for good reason; the barrel and cube formats are built around it.
Running cost: the comparison is not what people expect
A traditional heater draws far more power — 6 kW against roughly 2.2 kW — but it does not draw it continuously. Once the room reaches temperature the thermostat cycles the elements, so the average draw over a session is well below the rating. An infrared cabin cycles too, for the same reason.
| Rated draw | Energy if drawing continuously | Cost | |
|---|---|---|---|
| Infrared cabin | 2.24 kW | 1.68 kWh | $0.29 |
| Traditional, 6 kW | 6 kW | 4.5 kWh | $0.77 |
These are upper bounds: both figures assume the heater draws rated power for the entire session, which neither does once up to temperature. The real numbers are lower and depend on insulation, ambient temperature and how often the door opens. Substitute your own rate — see sauna running costs for the full method.
Even at the upper bound, a traditional session costs well under a dollar at typical US rates. Running cost is not a good reason to choose between these categories. The install cost is a much larger number, and it is a one-off.
What about full spectrum?
Full-spectrum infrared adds near and mid wavelengths and pushes the cabin to around 3,600 W at 220 V. At that point you are doing electrical work anyway, which weakens infrared's main structural advantage. If you are going to run a 220 V circuit, it is worth pricing a 240 V one and looking at traditional before you commit. We cover the spectrum question itself in full spectrum vs far infrared.
Picks on both sides of this decision
RESTISLAND 3-Person Far Infrared Sauna
RESTISLAND
#ad We earn a commission if you buy, at no extra cost to you. How this is funded.
It publishes both the wattage and the circuit it needs — the pair of numbers that actually decides whether you can install a sauna where you want it.
| Capacity | 3 person |
|---|---|
| Power draw | 2,240 W |
| Circuit | 20 A |
| Wood | Canadian hemlock |
| Extras | 7-color chromotherapy, Bluetooth speakers |
| EMF, as published | Described as low EMF; no figure given |
| Spectrum | Far infrared |
What works
- States the circuit requirement up front — most listings make you infer it
- 2,240 W is a real number you can run a running-cost calculation against
- Tempered glass door on a sub-premium cabin
What doesn't
- A dedicated 20 A circuit is not optional and most rooms lack a spare one
- 'Low EMF' again carries no figure
- No near infrared
Skip it ifyour only free outlet is on a shared kitchen or bathroom circuit. At 2,240 W this will trip a 15 A breaker, and an extension cord is a fire risk rather than a workaround.
Canadian Red Cedar 2-Person Traditional Sauna, 6 kW Harvia
MCP Distributions
#ad We earn a commission if you buy, at no extra cost to you. How this is funded.
A real Harvia heater inside a cedar room, sold as one box. If you have been running an infrared cabin and want actual loyly, this is the shortest path to it.
| Capacity | 2 person |
|---|---|
| Type | Traditional, wet or dry |
| Wood | Canadian red cedar |
| Heater | 6 kW Harvia |
| Circuit | 240 V — required for a 6 kW heater |
| Extras | Built-in sound system |
| Stones | Included |
What works
- Harvia is a heater brand with a published spec sheet and a real parts supply
- Cedar rather than hemlock — better rot resistance where humidity is high
- Wet or dry, so you can actually throw water
What doesn't
- 6 kW needs a dedicated 240 V circuit and a permit in most places
- Cedar costs more and the price reflects it
- A two-person footprint with a stove in it is tight
Skip it ifyou cannot run 240 V. Every traditional heater above roughly 4.5 kW needs it, and there is no workaround worth attempting.
Dynamic Lugano 3-Person Far Infrared Sauna
Dynamic Saunas
#ad We earn a commission if you buy, at no extra cost to you. How this is funded.
One of the few cabins in this price class that puts an EMF number in the listing rather than the word 'low' on its own — which is the only reason it can be ranked against anything.
| Capacity | 3 person |
|---|---|
| Wood | Canadian hemlock |
| Heater type | Carbon far-infrared panels |
| EMF, as published | Under 8 mG |
| Measurement distance | Not published |
| Spectrum | Far infrared only |
| Power draw | Not published in the listing |
What works
- Publishes an actual EMF figure instead of the unqualified word 'low'
- Hemlock rather than a softwood that resins at temperature
- Three-person footprint without the premium-tier price
What doesn't
- The EMF figure has no stated measurement distance, so it cannot be compared like for like
- Far infrared only — no near or mid wavelengths
- Assembly is genuinely a two-person job
Skip it ifyou want full-spectrum output. This is a far-infrared cabin and no amount of marketing language changes that — if near infrared matters to you, you are shopping in a different tier.
Questions people actually ask
Is an infrared sauna as good as a traditional sauna?
Which is cheaper to run, infrared or traditional?
Can you throw water in an infrared sauna?
Do traditional saunas always need 240 V?
Which heats up faster?
Sources
- Harvia — heater specifications and rated room volumes — checked Sep 7, 2026
- US Energy Information Administration — average retail electricity prices used in the cost table — checked Sep 7, 2026
Read next
Every pick on this page comes from published specifications, not from hardware we own. Read how we pick — including what spec-led ranking cannot tell you.