What an Infrared Sauna Costs to Run Each Month

A home infrared cabin used four times a week for 30 to 40 minutes typically adds somewhere between 6 and 15 dollars a month to an electric bill, depending on cabin size, panel wattage, and local electricity rates. That is a fraction of what a traditional wet sauna heater costs to run for the same amount of use, because infrared panels heat the body directly at a lower ambient temperature instead of raising the air in the whole cabin.

How Infrared Wattage Compares to a Traditional Heater

A traditional sauna heater has to bring the entire cabin’s air up to 170 to 190 degrees Fahrenheit, which usually means a 4.5 to 8 kilowatt element running hard for the full warm-up period and staying on to hold that temperature. Infrared cabins skip most of that step. The panels warm the body with radiant heat while the surrounding air stays closer to 120 to 150 degrees, so a comparable two- to four-person infrared unit typically draws 1,500 to 3,000 watts instead.

That difference compounds over a season. A traditional heater running at 6 kilowatts for a 45-minute session with warm-up uses roughly 4 to 5 kilowatt-hours per use. A 2,000-watt infrared cabin used for a 35-minute session, including the shorter warm-up infrared units are known for, lands closer to 1 to 1.2 kilowatt-hours. Multiply that gap across a month of regular sessions and the infrared side comes out meaningfully cheaper to operate.

Working Out Your Own Monthly Number

The math is straightforward once you know three things: the cabin’s wattage, average session length, and your local electricity rate per kilowatt-hour. Multiply wattage by hours used, divide by 1,000 to get kilowatt-hours, then multiply by your rate. A 2,000-watt cabin run for 35 minutes is about 1.17 kWh per session; at a national average residential rate in the mid-teens of cents per kWh, that lands around 17 to 20 cents per session.

Four sessions a week works out to roughly 16 to 18 sessions a month, which puts most mid-size infrared cabins in the 6 to 9 dollar monthly range at average rates. Households in areas with higher electricity costs, or anyone running a larger cabin with more panels for 45 minutes or longer, should expect to land closer to 12 to 15 dollars. Either way, it is a small line item compared with a gym membership, a spa day, or the utility cost of running central air or a hot tub.

Where Cabin Size and Panel Type Change the Number

Two-person cabins with fewer panels sit at the low end of the wattage range and are the cheapest to run per session. Four- and five-person cabins add panels to cover more body surface area, which raises total wattage even though the per-panel draw does not change much. Full-spectrum cabins, which combine near, mid, and far-infrared wavelengths, tend to run slightly higher wattage than far-infrared-only models because they are powering more panel types at once.

None of these differences are dramatic on a monthly electric bill. The bigger cost variable for most households is how often the cabin actually gets used, not which panel technology it has. A cabin used daily will cost more to run than one used twice a week, regardless of size.

Comparing Total Cost of Ownership, Not Just the Electric Bill

Running cost is only part of the picture. Upfront price, shipping, any deck or pad the cabin sits on, and occasional bulb or panel replacement all factor into what a sauna actually costs over several years of ownership. Shoppers comparing models across brands, including SweatDecks and other specialty retailers, generally do better weighing total cost over five years rather than focusing only on sticker price or the monthly electric bill in isolation.

Warranty length is worth checking too, since a longer parts warranty on the heating panels can offset a slightly higher upfront price if a panel ever needs replacing outside of normal wear.

Why the Running Cost Rarely Changes Behavior

A review in Mayo Clinic Proceedings summarizing sauna bathing research noted that consistency, meaning regular use over months and years, is the pattern most associated with the outcomes researchers have studied, rather than any single long session. A systematic review in Evidence-Based Complementary and Alternative Medicine reached a similar conclusion about regular dry sauna use more broadly. Because infrared running costs are low relative to most other home wellness habits, the electric bill rarely ends up being the deciding factor in whether someone keeps up a routine; convenience and how the cabin fits into daily life tend to matter more.

An older review in The American Journal of Medicine on the benefits and risks of sauna bathing made a related point: the practical value comes from sustainable, repeated use rather than occasional long sessions, which lines up with why keeping the operating cost low and predictable matters more than any single number on a spec sheet.

Frequently Asked Questions

How many watts does an infrared sauna use?

Most home infrared cabins draw between 1,500 and 3,000 watts, depending on cabin size and whether it uses near-infrared, far-infrared, or full-spectrum panels. A two-person cabin often sits near the low end of that range, while larger four- or five-person units with more panels pull closer to 3,000 watts.

Is an infrared sauna cheaper to run than a traditional electric sauna?

Generally yes. Traditional electric heaters commonly run 4.5 to 8 kilowatts because they have to heat the entire cabin’s air to a high temperature, while infrared panels heat the body more directly at lower wattage and lower ambient temperature, which usually adds up to a smaller monthly electric bill for similar use.

How much does a typical monthly infrared sauna habit cost?

For four sessions a week at 30 to 40 minutes each with a 2,000-watt cabin, expect somewhere around 6 to 9 dollars a month at typical U.S. residential electricity rates. Larger cabins, longer sessions, or a higher local electric rate can push that closer to 15 dollars, which is still modest compared with most home appliances.

Do infrared saunas cost anything to run besides electricity?

Ongoing costs are mostly electricity, plus the occasional replacement bulb or panel depending on the model. Some owners also add a low-wattage interior fan or light, which barely moves the total. There is no water or steam element to budget for, unlike a traditional wet sauna.