Short answer: most one- and two-person indoor infrared saunas run on 120V, the same voltage as an ordinary outlet, but many need a circuit of their own. Outdoor cabins and traditional heaters usually need 240V and an electrician. The plug type on the spec sheet tells you which, and it is the first thing to check, before the sauna is on a truck.
What the saunas we rate actually need
| Sauna | What it needs | What that means at home |
|---|---|---|
| HigherDOSE Infrared Sauna Blanket | Ordinary household outlet | No electrician in most homes |
| Clearlight Sanctuary 1 | 120V, 1,750W, 14.6A, standard NEMA 5-15 plug | Fits a normal outlet, but uses almost all of a 15A circuit. Nothing else should run on that circuit |
| Clearlight Sanctuary 2 | 120V on a dedicated 20A circuit, NEMA 5-20 plug, 2,250W | A 20A outlet has one T-shaped slot. Many rooms do not have one, so plan on an electrician |
| Sanctuary 2 with the upgrade heater or red light unit | 120V on a 30A circuit, NEMA 5-30 plug | Electrician |
| Sun Home Luminar 2-Person Outdoor | 240V, dedicated 20A GFCI circuit, NEMA L6-20 twist-lock outlet, installed by a licensed electrician | Electrician, plus a level, load-bearing pad outside |
| Traditional electric sauna heaters | Most residential models run on 240V, and many are hardwired | Electrician, and often a permit |
Figures from each maker's spec sheet or product page, read 2026-10-08. Specs change between model years, so check the sheet for the exact unit you order.
"It plugs into a normal outlet" is not the whole answer
An outlet is one point on a circuit, and a circuit usually feeds several outlets in a room. The Sanctuary 1 draws 14.6 amps on a 15-amp circuit. Run a space heater, a vacuum or a hair dryer on the same circuit during a session and the breaker trips. Treat any cabin sauna as needing its own circuit, even when the plug looks ordinary.
Skip extension cords and power strips. A long or thin cord drops voltage and heats up at the plug, and many makers say no extension cords in the manual, which can matter for a warranty claim.
How to read the outlet you already have
- Standard 15A outlet: two vertical slots and a round ground hole.
- 20A outlet: one of the two slots has a sideways T. A 20A plug will not fit a 15A outlet, by design.
- 240V outlets look different again. The L6-20 the Luminar uses is round and twist-locking.
If the plug on the spec sheet does not match the outlet you have, the fix is an electrician, not an adapter.
What an electrician visit usually covers
A new circuit run from your panel to where the sauna will sit, the outlet type that matches the sauna's plug, and GFCI protection where code requires it, which includes outdoor installs. Whether you need a permit depends on your city. Get a quote before you order, because it is part of the real price of the sauna.
Check before you buy
- The plug type and amperage on the spec sheet, not the marketing page.
- A free slot in your electrical panel, and the distance from the panel to the spot you have in mind.
- Outdoors: GFCI protection, a weather-rated outlet, and a level, drained pad.
- The path in: the largest panel has to fit through every door and hallway on the way.
Power is one of four checks in our home recovery setup guide, along with space, weight and water.