If you’re considering an infrared sauna for your home, one of your biggest concerns is likely the impact on your electricity bill. The good news? Infrared saunas are surprisingly energy-efficient compared to traditional saunas, typically using 1-3 kilowatt hours (kWh) per hour versus 6-9 kWh for conventional models.
This comprehensive guide will break down exactly how much electricity your infrared sauna will use, what it costs to run monthly and annually, and proven strategies to minimize your energy consumption while maximizing your wellness benefits.
Infrared Sauna Electricity Usage: The Basics
Understanding how infrared saunas work is key to appreciating their energy efficiency. Unlike traditional saunas that heat the air around you to temperatures of 150-195°F, infrared saunas use infrared light panels to directly heat your body at lower temperatures of 110-150°F.
This direct heating method offers several energy advantages:
- Faster heat-up times: 10-15 minutes versus 30-45 minutes for traditional saunas
- Lower operating temperatures: Requiring less energy to maintain comfortable conditions
- Direct body heating: No energy wasted heating unused air space
- Better insulation efficiency: Lower temperature differentials reduce heat loss
The result is a sauna experience that uses approximately 75% less electricity than traditional electric saunas while providing the same therapeutic benefits.
Detailed Power Consumption by Sauna Size
Infrared sauna electricity usage varies significantly based on size and capacity. Here’s a comprehensive breakdown of power consumption across different sauna configurations:
1-Person Infrared Saunas
Power Range: 1.1-1.8 kW
Average Usage: 1.4 kW per hour
Typical Models: Compact corner units, portable saunas
Single-person saunas are the most energy-efficient option, with many models consuming less electricity than a standard hair dryer. Popular brands like Clearlight’s 1-person models typically use around 1.41 kWh, making them ideal for daily use without significant impact on your electricity bill.
2-Person Infrared Saunas
Power Range: 1.7-2.4 kW
Average Usage: 2.0 kW per hour
Typical Models: Standard home saunas, couples units
Two-person saunas represent the sweet spot for most households, offering comfortable space for couples while maintaining excellent energy efficiency. Expect consumption similar to running a small space heater.
3-Person Infrared Saunas
Power Range: 2.2-3.0 kW
Average Usage: 2.6 kW per hour
Typical Models: Family saunas, corner configurations
Three-person units provide ample space for families while still consuming less electricity than most traditional 2-person saunas. The power consumption is comparable to an electric oven on medium heat.
4+ Person Infrared Saunas
Power Range: 3.0-4.8 kW
Average Usage: 3.8 kW per hour
Typical Models: Large family units, outdoor saunas
Larger saunas naturally consume more electricity but remain significantly more efficient than traditional alternatives. Even the largest infrared saunas use less power than a standard electric dryer.
Real-World Cost Calculations
To understand your actual costs, you’ll need to factor in your local electricity rates and usage patterns. Here’s how to calculate your specific expenses:
Basic Calculation Formula
Cost = (Sauna Wattage ÷ 1,000) × Hours Used × Electricity Rate per kWh
Example Calculations by Region
United States (Average: $0.17 per kWh)
- 2-person sauna (2 kW): $0.34 per hour
- Daily 45-minute session: $0.26 per day
- Monthly cost: $7.80
- Annual cost: $93.60
United Kingdom (Average: £0.27 per kWh)
- 2-person sauna (2 kW): £0.54 per hour
- Daily 45-minute session: £0.41 per day
- Monthly cost: £12.30
- Annual cost: £147.60
Australia (Average: AU$0.30 per kWh)
- 2-person sauna (2 kW): AU$0.60 per hour
- Daily 45-minute session: AU$0.45 per day
- Monthly cost: AU$13.50
- Annual cost: AU$162.00
Infrared vs Traditional Sauna: Complete Energy Comparison
The energy efficiency difference between infrared and traditional saunas is dramatic:
| Sauna Type | Power Usage | Heat-up Time | Cost per Hour (US) | Annual Cost* |
|---|---|---|---|---|
| 2-Person Infrared | 2.0 kW | 10-15 minutes | $0.34 | $186 |
| 2-Person Traditional | 6.0 kW | 30-45 minutes | $1.02 | $693 |
| 4-Person Infrared | 3.8 kW | 15-20 minutes | $0.65 | $357 |
| 4-Person Traditional | 9.0 kW | 45-60 minutes | $1.53 | $1,040 |
*Based on 5 sessions per week, 45 minutes each, including heat-up time
The annual savings potential is substantial – up to $507-683 per year for a family using their sauna regularly. Over a 10-year period, these savings can exceed $5,000, more than offsetting the initial purchase price difference.
Factors That Affect Electricity Usage
Several key factors influence your sauna’s actual electricity consumption:
Insulation Quality and Heat Retention
Premium saunas feature multi-layer insulation systems that can reduce energy consumption by 20-30%. Look for saunas with:
- Thick wall insulation (minimum 2 inches)
- Insulated glass doors
- Weather stripping around doors and panels
- Reflective barrier materials
Ambient Temperature and Location
Your sauna’s location significantly impacts energy usage:
- Indoor installation: 15-25% more efficient than outdoor units
- Basement locations: Naturally cooler, requiring more energy
- Climate considerations: Winter usage can increase consumption by 10-20%
- Garage installations: May require 20-30% more energy due to poor insulation
Usage Patterns and Frequency
How you use your sauna affects efficiency:
- Back-to-back sessions: More efficient than separate heating cycles
- Consistent scheduling: Regular use maintains optimal performance
- Session length: Longer sessions are more energy-efficient per minute
Energy-Saving Tips & Best Practices
Maximize your sauna’s efficiency with these proven strategies:
Optimal Preheating Strategies
- Skip excessive preheating: Many infrared saunas are comfortable within 10 minutes
- Use a timer: Avoid accidentally leaving your sauna running
- Plan consecutive sessions: If multiple family members are using the sauna
Temperature Setting Recommendations
- Start at 120°F: Many users find this comfortable and efficient
- Gradually increase: Only raise temperature if needed for comfort
- Personal optimization: Find your minimum comfortable temperature
Smart Usage Patterns
- Off-peak timing: Use during lower electricity rate periods
- Seasonal adjustments: Reduce temperature settings in summer
- Maintenance scheduling: Regular cleaning maintains optimal efficiency
Regional Cost Analysis
United States: State-by-State Variations
Electricity rates vary dramatically across the US:
- Lowest rates: North Dakota ($0.11/kWh), Idaho ($0.10/kWh)
- Highest rates: Hawaii ($0.41/kWh), California ($0.32/kWh)
- National average: $0.17/kWh
A 2-person infrared sauna costs between $53-223 annually depending on your state. In regions with rising electricity costs, homeowners are increasingly looking for ways to offset their energy expenses.
United Kingdom: Regional Considerations
UK electricity prices have significant regional variations:
- Average rate: £0.27/kWh (2025)
- Peak vs off-peak: Up to 50% savings with Economy 7 tariffs
- Annual cost range: £95-200 for typical usage
Australia: Peak/Off-Peak Opportunities
Australian electricity markets offer time-of-use pricing:
- Peak rates: AU$0.35-0.43/kWh
- Off-peak rates: AU$0.24-0.30/kWh
- Potential savings: 40-60% by scheduling off-peak usage
Long-Term Financial Considerations
ROI Calculations vs Spa Visits
Compare home sauna costs to commercial alternatives:
- Average spa session cost: $35-60
- Break-even point: 6-12 months for most home saunas
- 10-year savings: $8,000-15,000 compared to regular spa visits
Solar Panel Integration Potential
Solar power can dramatically reduce sauna operating costs:
- System requirements: 2-4 kW solar capacity for regular sauna use
- Payback period: 6-8 years including sauna electricity offset
- Long-term benefits: Essentially free sauna operation after payback
For homeowners interested in maximizing their energy independence, pairing an infrared sauna with residential solar panels can create a sustainable wellness solution. Additionally, home energy storage solutions can help you use stored solar energy to power your sauna during peak rate periods, further reducing operating costs.
Expert Recommendations & Buying Guide
Energy-Efficient Models and Brands
Top-rated brands for energy efficiency:
- Clearlight: Industry-leading True Wave heater technology
- Sunlighten: Excellent insulation and build quality
- Jacuzzi: Premium materials and efficient heating systems
Installation Considerations for Optimal Efficiency
- Electrical requirements: Most 1-2 person units use standard 15-amp outlets
- Larger units: May require dedicated 20-amp circuits
- Professional installation: Ensures optimal efficiency and safety
Infrared saunas represent an excellent balance of wellness benefits and energy efficiency. With typical operating costs of just $0.26-0.80 per session, they’re an affordable luxury that can provide decades of health benefits while maintaining reasonable electricity usage. By choosing the right size for your needs and following energy-saving best practices, you can enjoy regular sauna sessions without worrying about your electricity bill. For those looking to further optimize their home’s energy profile, you can calculate your potential solar savings to see how renewable energy could offset your sauna’s electricity consumption entirely.