Infrared saunas have become the most common home sauna for one simple reason: many of them plug into a household outlet. That makes them easier to install than a traditional sauna, but the category is full of marketing terms that are hard to compare.
This guide covers the decisions specific to infrared cabins, in order. Each section has its own deeper article on the site. If you’re still choosing between infrared and traditional heat, the home sauna buying guide covers that first.
Short answer: check the plug and circuit first, then the cabin size, then the heater layout. Treat “full spectrum” and “low EMF” as claims to verify, not features to trust.
How infrared heat works
Infrared panels warm your body more directly than a traditional heater warms the air, so the room runs cooler, typically 110–135°F (Cleveland Clinic). There are no rocks and no steam. Cleveland Clinic suggests keeping sessions under 30 minutes and starting at 5–10 minutes.
Wavelengths and “full spectrum”
Most cabins use far-infrared carbon or ceramic panels. “Full spectrum” cabins add near- and mid-infrared emitters. The terms aren’t standardized in sauna marketing: the ISO 20473 standard defines near-infrared as 0.78–3 µm and far-infrared as 50 µm to 1 mm, which doesn’t match how most sauna brands use the words. Compare heater layouts and wattage, not labels.
EMF
Most brands advertise “low EMF,” usually as a milligauss figure. For context, the ICNIRP’s 2010 guidelines set a general-public reference level of 200 µT (2,000 milligauss) for 50/60 Hz magnetic fields. A useful EMF claim tells you the reading, the distance it was measured at, and who measured it.
Power and plugs
Here’s what the spec sheet won’t tell you upfront: “plug-and-play” covers several different plugs.
| Cabin | Power |
|---|---|
| Clearlight Premier IS-1 | 120V, 11.42A, standard NEMA 5-15P plug |
| Dynamic Barcelona | 120V/15A outlet, non-GFCI, dedicated recommended |
| Sunlighten Signature I | Dedicated 120V/20A circuit (NEMA 5-20) |
| Clearlight Sanctuary 2 | 120V/20A outlet (NEMA 5-20P plug) |
| Finnmark FD-3 | 240V, 15A dedicated circuit |
Size
One-person cabins start at about 3 by 3 feet (the Sunlighten Signature I is 37.8 × 39.8 inches outside). Two-person cabins run closer to 4 by 4 feet; four-person models like the Finnmark FD-3 reach 72 inches wide.
Cabins with more than one heater type
Some cabins combine technologies, like the Health Mate Enrich 2’s Tecoloy dual-wave and True Infra heaters, or Finnmark’s carbon and Spectrum Plus panels. You get more variety; you also get more parts to understand and warranty.
Price shopping
The same model can cost very different amounts at different retailers. On October 1, 2026, the Dynamic Barcelona listed at $3,499 on Golden Designs’ site and $1,999 at Select Saunas. Compare the exact model number, the warranty, and the return terms before you buy.
Shortlisting a model
Our infrared sauna comparison puts a full-spectrum premium cabin, an established far-infrared brand, and a budget pick side by side. For hybrid cabins that add a traditional heater, see the traditional sauna buying guide.
Bottom line: in infrared, the plug and the cabin size decide most of the fit. Verify the marketing terms before you pay for them.
Sources
- Cleveland Clinic, “Why Infrared Saunas Are ‘Cooler’ Than Traditional Saunas,” April 14, 2022: health.clevelandclinic.org
- RP Photonics, “Infrared Light” (ISO 20473 spectral bands), accessed October 2, 2026: rp-photonics.com
- ICNIRP, “Guidelines for Limiting Exposure to Time-Varying Electric and Magnetic Fields (1 Hz to 100 kHz),” 2010: icnirp.org
- Product specifications and prices: Clearlight, Sunlighten, Dynamic Saunas, Finnmark, and Health Mate listings via the manufacturers, Select Saunas, and Amazon, checked October 1, 2026