One of the most common questions before buying a home sauna isn't about heat or wood type — it's about the electric bill. Here's a real breakdown, using current U.S. electricity rates and actual heater wattages, so you know what to expect before you buy.
The Short Answer
Most infrared saunas cost between $3 and $15 per month to run with regular use (3-4 sessions per week). Traditional steam saunas typically cost $15 to $50 per month for the same usage pattern. The difference comes down to how each type heats: infrared panels warm your body directly, while traditional heaters have to heat the entire room to high temperatures first.
The Formula
Every sauna's running cost comes down to one calculation:
Cost = Heater Wattage (kW) × Hours Used × Your Electricity Rate ($/kWh)
As of mid-2026, the average U.S. residential electricity rate is about $0.19 per kWh, though this varies significantly by state — from roughly $0.12/kWh in North Dakota to over $0.40/kWh in Hawaii. If you're not sure of your rate, it's on your utility bill.
Infrared Sauna Costs by Size
| Sauna Size | Typical Heater Power | Cost per 30-Min Session* | Cost per Month (4x/week) |
|---|---|---|---|
| 1-Person | 1.2 – 1.8 kW | $0.14 – $0.17 | ~$2.30 – $2.75 |
| 2-3 Person | 1.8 – 2.6 kW | $0.17 – $0.25 | ~$2.75 – $4.00 |
| 4+ Person | 3.0 – 4.5 kW | $0.29 – $0.43 | ~$4.60 – $6.90 |
*Based on the U.S. average rate of $0.19/kWh. Our Golden Designs Infrared Saunas and Maxxus Saunas fall within these ranges depending on model and EMF configuration.
Traditional Sauna Costs
Traditional electric sauna heaters typically draw 6-9 kW — three to five times the power of an infrared unit — because they need to heat the air in the entire cabin to 170-195°F rather than warming your body directly. A typical session includes a 30-45 minute warm-up at full power, then the heater cycles at roughly half power to maintain temperature.
| Session Length | Estimated Usage | Cost per Session* | Cost per Month (4x/week) |
|---|---|---|---|
| ~1 hour (incl. warm-up) | ~5 kWh (blended) | ~$0.95 | ~$15.20 |
| ~1.5 hours (incl. warm-up) | ~7 kWh (blended) | ~$1.33 | ~$21.30 |
*Based on the U.S. average rate of $0.19/kWh. Our Golden Designs Traditional Saunas use this style of heater.
What About Hybrid Saunas?
Hybrid models combine an infrared panel system with a traditional Harvia stove, letting you choose either experience from the same cabin. Running costs depend entirely on which heat source you use for a given session — infrared sessions cost the same as a comparable infrared sauna above, traditional sessions cost the same as a comparable traditional unit. See our Golden Designs Hybrid Saunas for available configurations.
4 Ways to Lower Your Running Costs
- Choose the right size. An oversized sauna for your typical usage (e.g., a 4-person unit used mostly by one person) wastes energy heating unused space.
- Check insulation quality. A well-insulated cabin holds heat longer, meaning the heater cycles less often to maintain temperature.
- Keep it indoors when possible. Outdoor saunas lose more heat to ambient temperature, especially in winter, and run their heaters more to compensate.
- Match EMF/wattage to your needs. Our Maxxus and Golden Designs infrared lines come in Low, Ultra Low, Near Zero, and Full Spectrum configurations — pick based on your health preferences, not just the highest-wattage option.
The Bottom Line
For most households running an infrared sauna 3-4 times a week, you're looking at less than the cost of a streaming subscription per month. Traditional saunas cost more to run but deliver a different, higher-heat experience many people prefer. Either way, the running cost is a small fraction of what you'll spend on the sauna itself — the bigger decision is which experience fits your routine.
Browse our full range of saunas and cold plunge equipment to compare models side by side.