Saunas have become a staple in homes for their health and relaxation benefits. However, as we become more energy-conscious, it's crucial to understand the electricity usage of saunas. This guide aims to shed light on the energy consumption of different sauna types, helping you make an informed choice that aligns with your wellness and environmental goals.
Quick Answers
How much electricity does a sauna use?
Electricity use depends on the type of sauna. Traditional steam saunas typically use 6,000 to 8,000 watts, infrared saunas use about 1,500 to 2,500 watts, and portable saunas use 1,000 to 2,500 watts. To find kilowatt-hours, multiply the wattage by hours used and divide by 1,000.
How much electricity does an infrared sauna use?
Infrared saunas typically draw 1,500 to 2,500 watts, making them more efficient than traditional steam saunas at 6,000 to 8,000 watts. This lower usage happens because infrared heaters warm the body directly instead of heating the whole cabin's air, which requires less power overall.
How do I calculate my sauna's electricity cost?
Multiply the sauna's wattage by the number of hours used, then divide by 1,000 to get kilowatt-hours. For example, a 6,000-watt sauna run for 2 hours uses 12 kWh. Multiply that kWh figure by your local electricity rate per kWh to estimate the actual cost of a session.
Does a sauna use more electricity than other home appliances?
A sauna generally uses more electricity than an average dishwasher but less than a central air conditioning system. The exact cost depends on the sauna's wattage, how long each session lasts, and the local electricity rate where you live.
How can I reduce my sauna's electricity usage?
Choose an infrared sauna for a lower wattage draw, keep the unit well maintained for efficient operation, and run sessions during off-peak electricity hours. Moderating temperature settings and shortening session length also help cut down on overall energy consumption.
Types of Saunas and Their Energy Consumption

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Traditional Steam Saunas
Steam saunas, often heated with electric heaters, are known for their high temperatures and humid environment. They typically consume between 6,000 to 8,000 watts, depending on size and usage.
Infrared Saunas
Infrared saunas are celebrated for their energy efficiency. They use infrared heaters to directly warm the body, requiring less energy, typically around 1,500 to 2,500 watts.
Portable Saunas
Portable saunas are a flexible option, with energy usage varying greatly depending on size and type. Generally, they use between 1,000 to 2,500 watts.
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Factors Affecting Electricity Usage in Saunas

Size of the Sauna
Larger saunas require more energy to heat. It's important to choose a size that fits your needs without excess energy waste.
Duration of Use
Longer sauna sessions increase energy consumption. Moderating usage can significantly reduce electricity costs.
Temperature Settings
Higher temperatures equate to higher energy use. Opting for moderate temperatures can offer a balance between comfort and efficiency.
Calculating Your Sauna's Electricity Usage
To calculate, multiply the sauna's wattage by hours of use and divide by 1,000 to get kilowatt-hours (kWh). For example, a 6,000-watt sauna used for 2 hours is 12 kWh.
Tips for Reducing Electricity Usage in Saunas
- Opt for infrared saunas for lower energy consumption.
- Regularly maintain your sauna to ensure efficient operation.
- Use during off-peak hours to potentially reduce electricity costs.
Cost Implications of Sauna Electricity Use
The cost varies based on local electricity rates. Comparatively, a sauna may use more electricity than an average dishwasher but less than a central air conditioning system.
Conclusion
Understanding the electricity usage of saunas is key to making an energy-efficient choice. By considering the type, size, and usage habits, you can enjoy the benefits of a sauna while being mindful of energy consumption and costs. Embrace the warmth of your sauna, knowing you've made a choice that's good for both your wellness and the planet.
Looking for more wellness tips and curious about sauna use? Check out our latest Sweat Decks blogs for more Health and Wellness tips
What to Know Before Buying a Sauna
Choosing the right sauna for your home involves balancing several important factors: space requirements, heating preferences, capacity, and long-term maintenance. Whether you're drawn to the classic appeal of a barrel sauna or the modern lines of a cube sauna, understanding these fundamentals will help you make a confident purchase.
Barrel vs. Cube Saunas: Key Differences
Barrel saunas heat up faster due to their cylindrical shape, which naturally circulates hot air more efficiently. They're also easier to install on uneven surfaces and typically require no foundation work. Cube saunas, on the other hand, offer more interior headroom and a contemporary aesthetic that complements modern outdoor living spaces. Both styles are built from premium thermo-treated wood that resists rot, warping, and insect damage for decades of outdoor use.
Choosing the Right Heater
Your sauna heater is the heart of your sauna experience. Electric heaters from brands like Harvia and HUUM offer precise temperature control, WiFi connectivity, and whisper-quiet operation. Key sizing guidelines: allow 1 kW per 50 cubic feet of sauna space. A 4-person barrel sauna typically needs a 6-8 kW heater, while larger 6-person models may require 8-10 kW.
Health Benefits of Regular Sauna Use
Research published in peer-reviewed journals consistently links regular sauna bathing (4-7 sessions per week at 174-194°F for 15-20 minutes) to reduced cardiovascular risk, lower all-cause mortality, improved circulation, and better sleep quality. Finnish studies spanning over 20 years have demonstrated that frequent sauna users experience significantly lower rates of heart disease and stroke compared to occasional users.
Installation and Maintenance
Most outdoor saunas can be assembled in 4-8 hours with basic tools. Professional installation is recommended for electrical connections — all SweatDecks installations are handled by certified electricians. Maintenance is minimal: wipe down benches after each use, sand lightly once a year, and ensure proper ventilation. With proper care, a quality outdoor sauna will last 15-25 years.
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