For most men, running an infrared sauna adds roughly $5 to $15 per month to a home electricity bill. The exact figure depends on the sauna's wattage, your local rate per kilowatt-hour, and how often you use it.
You're considering an infrared sauna for the health benefits, and that's a smart move. The research on heat therapy for cardiovascular health, recovery, and stress reduction is compelling. But before you commit, it's practical to understand what it will add to your monthly bill. Unlike a gym membership, this is a home utility cost, and it's not a mystery. The electricity cost boils down to a few key factors: the sauna's wattage, your local electricity rate, and how often you use it.
Let's break down each piece so you can run the numbers for your specific situation.
The Core Factor: Understanding Wattage and Kilowatt-Hours
Every infrared sauna has a total wattage rating, which tells you its maximum power draw. This is usually listed in the product specifications. Common sizes range from a 1-2 person unit (around 1200-1600 watts) to a larger 4-person model (up to 3000 watts or more).
Electricity is billed by the kilowatt-hour (kWh). One kilowatt-hour is what you use if you run a 1000-watt appliance for one full hour.
Here's the basic formula you'll need:
(Sauna Wattage ÷ 1000) x Hours of Use x Cost per kWh = Estimated Cost
- Sauna Wattage: Found in your manual (e.g., 1500 watts).
- Cost per kWh: This is on your electricity bill. The U.S. national average is about $0.17 per kWh, but it varies wildly. In some states, it can be as low as $0.10 or as high as $0.40 or more. This is the most critical variable.
Running the Numbers: A Real-World Example
Let's take a typical mid-sized sauna rated at 1700 watts and an owner in an area with an average electricity rate of $0.17/kWh.
- Convert watts to kilowatts: 1700W / 1000 = 1.7 kW
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Calculate cost per session: A standard session might be 30 minutes of heating at full power to reach temperature, followed by a 20-minute soak. The heaters cycle on and off to maintain temperature, so let's estimate a total of 45 minutes (0.75 hours) of actual heating time per session.
Cost per session = 1.7 kW x 0.75 hrs x $0.17 = $0.22 -
Calculate monthly cost: If you use it 4 times a week (16 times a month).
Monthly cost = $0.22 x 16 = $3.52
Even with more frequent use—say, a daily 45-minute session (30 times a month)—the cost in this scenario would be about $6.63.
The pre-heat time is a major factor. Unlike traditional saunas that can take 30-60 minutes to heat a large space, most modern infrared saunas are designed for personal use and reach their effective temperature in 10-20 minutes. This shorter heat-up time is a significant efficiency advantage that keeps operating costs lower than many people assume.
Factors That Will Change Your Actual Cost
Your mileage will vary based on these elements:
- Your Local Electricity Rate: This is the biggest variable. Plug your rate into the formula.
- Sauna Size and Efficiency: A larger, higher-wattage sauna costs more to run. Look for models with well-insulated walls and ceilings to retain heat.
- Your Protocol: A 20-minute session costs less than a 45-minute session. Frequency is also key—using it 3 times a week versus 7 times a week will double the cost.
- Ambient Temperature: Running a sauna in a cold garage in winter will require slightly more energy to reach and maintain temperature than in a climate-controlled room.
- Standby Features: Some saunas have digital control panels, lights, or sound systems that draw a small amount of power when not in use. This is usually negligible but can add a few cents to your monthly bill.
How This Compares to Other Common Appliances
For perspective, here's how a frequent sauna routine stacks up against other household energy users (using the $0.17/kWh average):
- Infrared Sauna (1.7kW, 4x/week): ~$3.50/month
- Clothes Dryer (3kW, 8 loads/month): ~$8.16/month
- Central Air Conditioner (3.5kW, 5 hrs/day on weekends): ~$35/month+
- Electric Water Heater (4.5kW, 2 hrs/day): ~$45/month
The takeaway is that for most men, the ongoing electricity cost of an infrared sauna is comparable to running a powerful gaming PC or a few extra loads of laundry—a reasonable trade for a consistent health practice.
Practical Takeaways for Managing Cost
1. Find Your Rate: Check your latest utility bill for the cost per kWh. Use that number in your calculations.
2. Ask for Specs: Before purchasing a sauna, ask the manufacturer for the total rated wattage. Reputable companies provide this.
3. Be Efficient: Close the door promptly, consider using a timer, and avoid excessively long pre-heat times. Once you know your unit, you'll learn the sweet spot.
4. View it as a Health Investment: We don't question the electricity cost of a refrigerator that preserves our food. Think of your sauna similarly—as a tool that supports your body's recovery, circulatory health, and stress management systems. The financial cost is typically far less than a monthly gym membership or other wellness subscriptions.
For the average user, the ongoing electricity cost of an infrared sauna is a minor line item, often between $5 and $15 per month. It's a predictable, manageable expense for a powerful tool you control. The real value isn't on your utility bill; it's in the consistent investment in your long-term health.
Frequently asked questions
How much does it cost to run an infrared sauna per session?
A mid-sized sauna rated at 1700 watts used at an average rate of $0.17 per kilowatt-hour costs around $0.22 per session, assuming about 45 minutes of actual heating time. Your cost will shift depending on your local electricity rate and how long each session runs.
How do I calculate my infrared sauna electricity cost?
Use this formula: sauna wattage divided by 1000, multiplied by hours of use, multiplied by your cost per kilowatt-hour. You can find the wattage in your sauna's manual and the kilowatt-hour rate on your electricity bill. The U.S. national average is about $0.17 per kilowatt-hour, but rates can range from around $0.10 to $0.40 or more depending on your state.
How does an infrared sauna compare to other home appliances for energy use?
At four sessions per week, a 1.7-kilowatt infrared sauna costs roughly $3.50 per month at the national average rate, which is less than running a clothes dryer for eight loads a month at around $8.16. It's far cheaper than running central air conditioning or an electric water heater each month.
Does infrared sauna heat-up time affect electricity costs?
Yes, and it works in your favor. Most modern infrared saunas reach an effective temperature in 10 to 20 minutes, which is significantly faster than traditional saunas. That shorter pre-heat time is a meaningful efficiency advantage that keeps monthly running costs lower than many people expect.