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How Much Does It Cost to Run a Electric Sauna Heater in California? (2026)
Sauna heaters are among the most powerful appliances in a home, drawing 4.5 to 9 kW while heating. A one hour session including warm-up uses 6 to 10 kWh, similar to a full day of air conditioning.
A typical electric sauna heater (6,000 W) costs $2.10 per hour, or about $63.00 per month at 1 hours a day in California. Expensive to run
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (3,000 W) | $1.05 | $1.05 | $31.50 | $383.25 |
| Typical (6,000 W) | $2.10 | $2.10 | $63.00 | $766.50 |
| High (9,000 W) | $3.15 | $3.15 | $94.50 | $1,150 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 1 h/day ≈ 2,190 kWh per year.
In California, with electricity at $0.35 per kWh (source: EIA Table 5.6.A, 2026-06), a typical electric sauna heater costs $2.10 per hour and about $766.50 per year at 1 hours a day. That is about 94% more than the US national average of $32.40 per month, because electricity in California costs $0.35 per kWh against $0.18 nationally. Each $1.00 of electricity buys roughly 0.5 hours of use.
How to lower the cost of running a electric sauna heater
- Preheat for 30 to 45 minutes, not longer. Well-insulated saunas reach temperature quickly.
- Keep the door closed and the vent adjusted.
- Use the sauna in shorter sessions with the heater cycling on its thermostat.
Frequently asked questions
How much does it cost to run a sauna for an hour?
About 6 kWh for a typical 6 kW heater including warm-up. Pick your region.
Are infrared saunas cheaper to run?
Yes, typically 1.5 to 2 kW and little preheat, so about a third of the cost.
How much does a sauna add to the monthly bill?
Three sessions a week at 6 kWh each is about 80 kWh a month.
Compare with
Cost by region
- United States (average)
- California
- Texas
- New York
- Florida
- Canada (average)
- United Kingdom
- Germany
- France
- Australia
- India