“Plug and play” is the main reason people choose infrared, but it covers a range of setups: a normal household outlet, a dedicated 20-amp circuit, or for larger cabins, 240V. The difference decides whether you need an electrician.
This article lists what each cabin needs. For the rest of the buying decisions, start with the infrared sauna buying guide.
Short answer: check the plug type before you buy. A standard 15A plug works in a normal outlet; a NEMA 5-20P plug needs a 20A receptacle; a few larger cabins need 240V.
Model by model
| Cabin | Power (per listing) | Watts | Max cost per hour at 18.34¢/kWh |
|---|---|---|---|
| Clearlight Premier IS-1 | 120V, 11.42A, NEMA 5-15P | 1,370W | about 25¢ |
| Sunlighten Signature I | Dedicated 120V/20A (NEMA 5-20) | 1,350W | about 25¢ |
| Dynamic Barcelona | 120V/15A, non-GFCI, dedicated recommended | not listed in our data | |
| Health Mate Enrich 2 | 120V, 15A | 1,780W | about 33¢ |
| Durasage 2-Person Carbon | 120V standard outlet | 1,700W | about 31¢ |
| Clearlight Sanctuary 2 | 120V/20A (NEMA 5-20P) | not listed in our data | |
| Finnmark FD-3 | 240V, 15A dedicated | 3,150W | about 58¢ |
Costs assume the heaters run flat out for a full hour; most cabins cycle once they’re hot, so real costs come in lower.
What the plug types mean
NEMA 5-15P is the ordinary household plug. It fits a standard 15A outlet.
NEMA 5-20P has one blade turned sideways and fits only a 20A receptacle. If your outlet doesn’t have the matching T-shaped slot, you need an electrician to install one.
240V cabins are hardwired or use a dedicated 240V circuit, like a traditional sauna heater.
“Dedicated” matters
Here’s what the spec sheet won’t tell you: a dedicated circuit means nothing else shares it. A sauna drawing 11–15 amps on a circuit that also runs a space heater or a TV will trip the breaker. Even when a listing only “recommends” a dedicated outlet, treat it as required.
Run the numbers in amps
Amps are watts divided by volts.
| Cabin | Watts | Amps |
|---|---|---|
| Sunlighten Signature I | 1,350W | about 11.3A at 120V |
| Clearlight Premier IS-1 | 1,370W | about 11.4A at 120V |
| Durasage 2-Person Carbon | 1,700W | about 14.2A at 120V |
| Health Mate Enrich 2 | 1,780W | about 14.8A at 120V |
| Finnmark FD-3 | 3,150W | about 13.1A at 240V |
Our arithmetic from listed wattage.
A 15A breaker allows 15A. A common electrician’s rule keeps a load that runs for a long time at or below 80% of the breaker rating, which is 12A on a 15A circuit and 16A on a 20A circuit. By that rule, the Durasage and the Enrich 2 are over the line for a shared 15A circuit, even though each plugs into a normal outlet. Give them a circuit of their own, and ask an electrician whether 20A is the better choice.
More models from our catalog
| Cabin | Power (per listing) |
|---|---|
| Dynamic Andora | 120V/15A standard outlet |
| Sunlighten Signature II | Dedicated 120V/20A circuit |
| Finnmark FD-4 Trinity (hybrid) | 120V, 15–20A, NEMA 5-15P plug |
| Sunlighten Solo (dome) | Standard household outlet |
| HigherDOSE Sauna Blanket | 350–420W on a standard outlet |
From manufacturer and dealer listings, checked September 2026.
The FD-4 Trinity is a special case. Its infrared array is 1,750W and its traditional stove is 1.9kW. Either one alone nearly fills a 20A circuit. Ask the dealer whether both can run together before you choose the circuit.
The non-GFCI note
The Dynamic Barcelona’s listing specifies a non-GFCI outlet. GFCI outlets are standard in bathrooms, garages, basements, and outdoors, so that requirement narrows where the cabin can plug in. If the spot you have in mind has GFCI protection, ask an electrician what your options are. Don’t swap the outlet yourself.
No extension cords
A sauna runs near the limit of its circuit for half an hour or more. Plug it straight into the wall. If the cord doesn’t reach, move the cabin or have an outlet installed.
Before you buy
- Find the plug type and amperage on the listing or in the manual.
- Check the outlet you plan to use: its amperage, and what else is on that circuit.
- If it doesn’t match, get an electrician’s quote before ordering.
For the cabins in our infrared sauna comparison, each product page lists the power the maker specifies.
Bottom line: “plug and play” is true only if your outlet matches the plug. Check both before you order.
Sources
- Power specifications: Clearlight, Sunlighten, Dynamic Saunas, Health Mate, Durasage, and Finnmark listings, checked October 1, 2026
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A (residential average 18.34¢/kWh, June 2026 data), via energyfactbook.com, accessed October 1, 2026
- Wikipedia, “NEMA connector” (5-15 and 5-20 configurations), accessed October 2, 2026: wikipedia.org
- Power specifications: Dynamic Andora, Sunlighten Signature II and Solo, Finnmark FD-4 Trinity, and HigherDOSE listings, checked September 2026