What "Far Infrared" Actually Means (and Why It's Not a Downgrade)

Far infrared is the longest of the three infrared wavelengths. It's the band that penetrates deepest and drives the gentle, sweat-it-out core warming most people picture when they think of an infrared sauna. Sessions run lower and longer than a traditional Finnish room — comfortable heat in the 120–150°F range instead of 180°F+ — and the cabin warms you directly instead of cooking the whole air volume first.

Here's the honest version most retailers skip. A far-infrared sauna emits only that longest wavelength. A full-spectrum infrared sauna adds near and mid wavelengths on top, which warm the skin's surface and soft tissue too. That sounds like more is always better, but it isn't a clean upgrade: full-spectrum heaters cost more, and "full spectrum" describes what the emitters put out, not switchable zones you toggle between. There's no residential cabin where you flip a switch to run "just near-infrared." If deep, even heat is what you're after, far infrared does exactly that job, and every SunRay model in this collection is built around it.

So far infrared isn't the budget tier. It's the focused tier. The question is whether you want the broader wavelength range, not whether one is "real" and the other isn't.

The Brand We Carry Here: SunRay

Everything in this collection is SunRay. We carry them because their EMF numbers hold up and their lineup covers every size and placement a home buyer actually needs, from a one-person closet-sized cabin to a four-person outdoor build.

For a solo daily ritual, the SunRay Sedona is the smallest in the line at 36 inches wide, a Red Cedar 1–2 person cabin that tucks into a bedroom alcove or office corner. Step up to two people and the Sierra (Red Cedar) and Evansport (Hemlock) cover the same 48-inch footprint at different price points. The three-person Savannah and Aspen and the four-person Sequoia, Roslyn, and corner-shaped Bristol Bay round out the indoor cabins. If your sauna lives outside, the Cayenne, Grandby, Burlington, Logan, and the larger Pacific are weather-built cabin versions of the same idea.

EMF: What to Check, and Where the Reports Exist

EMF (electromagnetic field) exposure is a fair thing to look at on any infrared sauna, because you sit inches from the heater panels for 30 to 45 minutes at a time. Cheap import cabins are where the concerning numbers show up, and it's one of the few infrared specs that genuinely separates good builds from bad ones.

SunRay rates most of this lineup — the Sedona, Sierra, Savannah, Aspen, Sequoia, Roslyn, Bristol Bay, Grandby, Burlington, and Logan — as Ultra Low EMF. The Cayenne is rated Low. That's the spec line we'd want you reading on any cabin before you buy. Where a model in this collection doesn't carry a published rating yet, we'd rather tell you that than imply a number we can't back up — ask us and we'll get you whatever the manufacturer has documented. The general rule: if a sauna listing anywhere doesn't mention EMF testing at all, read that silence as the flag.

Indoor or Outdoor — Pick the Placement First

This decision drives everything else, and it's usually obvious within five minutes of looking at your space. Indoor far-infrared cabins like the Sequoia, Roslyn, and Sierra are finished, furniture-grade pieces meant for a basement, home gym, sunroom, or spare-bathroom corner. They're the bulk of this collection, and they cross-shop directly with our broader indoor infrared sauna range if you want to weigh far-infrared against full-spectrum side by side.

Outdoor models — Cayenne, Grandby, Burlington, Logan, Pacific — are the same far-infrared heat in a weather-built shell, sized to sit on a patio, deck, or pad. They run taller (the Logan and Pacific stand 88 inches) and read as a standalone garden cabin rather than a piece of indoor furniture. If you're set on a backyard build, browse our full outdoor sauna selection to see how these stack against traditional and barrel options out there.

Electrical: Most Plug In, Some Don't

This is where far infrared has a real edge over traditional saunas. Smaller infrared cabins draw far less power than an 8kW Finnish stove, so many one- and two-person models run on an ordinary household outlet rather than a hardwired 240V circuit. The compact SunRay cabins like the Sedona are the easy ones — closer to plug-and-play than anything in our traditional lineup.

That said, the larger and outdoor cabins pull more, and an outdoor run across a yard is its own conversation regardless of voltage. Don't guess. Have a licensed electrician confirm the circuit, amperage, and any GFCI requirement for the specific model and your specific panel before the crate ships — and for an outdoor install, before you commit to where the sauna sits. Our walkthrough of sauna electrical requirements covers what to ask and how to read the spec sheet on each cabin.

What's Included and What You Provide

Every SunRay cabin in this collection ships pre-built in panelized sections with the heaters, Bluetooth audio, benches, and hardware already integrated. Unlike a traditional sauna, there's no separate heater to spec or buy — the far-infrared emitters are part of the cabin. Two people assemble most models by connecting the wall, roof, and floor panels with the included hardware. No carpentry, no wiring inside the cabinet.

You provide the spot, the power, and a little time. Indoor cabins sit fine on concrete, tile, hardwood, or engineered flooring; leave clearance around the back and sides for airflow and service access. Outdoor models want a level pad or a deck rated for the loaded weight. Saunas ship curbside on freight, fully insured. And if you get stuck mid-build, that's what we're here for — call us and we'll talk you through it, which is the part you don't get buying a mystery cabin off a marketplace listing.

Still deciding between wavelengths or brands? See how far infrared fits within the whole infrared sauna category, or browse the complete SunRay collection in one place.