Setting up a sauna at home can significantly enhance your experience of luxurious relaxation. However, understanding the nuances of sauna operation evaluation, especially the “200 rule”, is essential to maximizing the efficiency of your sauna and ensuring safety. This guide will explore what the “200 rule” means, how it affects your sauna experience, and how to choose the ideal sauna.
What is the 200 Rule?
The 200 Rule is a simple way to make your sauna safe and fun. It helps you find the best combination of heat and moisture. The rule states that the temperature (°F) plus the humidity (%) in the sauna should be less than 200. For example, 170°F + 30% humidity = 200.
What Does the 200 Rule Mean?
The 200 rule helps you balance heat and moisture. This keeps you safe and helps you relax. If your sauna is too hot and humid, you might get sick. If it’s not hot or humid enough, you won’t get the good stuff out of the sauna. Some people believe this rule started in Finland, where saunas are very popular.
Why Use the 200 Rule?
- Safety: The 200 rule helps you stay safe in a sauna. It prevents you from getting too hot, which could make you sick.
- Comfort: Saunas feel good when you follow the rules. You can relax and enjoy the heat.
- Health: Saunas are good for your health. They help your blood flow better, help your muscles relax, and help your body get rid of harmful substances. Traditional saunas are usually between 155°F and 195°
How to Use the 200 Rule:
- Check the temperature: Use a sauna thermometer. A good temperature is between 150°F and 190°
- Find the humidity: Subtract the temperature from 200. This is the maximum humidity you should have. If your sauna is at 190°F, the humidity should not be more than 10%.
- Change the sauna: Use a hygrometer to check the humidity in your sauna. If you need more steam, add water to the rocks. If it’s too humid, turn down the heat.
Tip: If you’re new to saunas, start with a lower temperature, like 160°F, and a higher humidity, like 40%.
If you are looking for an indoor sauna manufacturer you can find high-quality options that prioritize safety and adhere to standards like the 200 Rule.

Don’t make these mistakes:
- Don’t forget the rules: If the temperature and humidity add up to more than 200, you might get sick.
- Don’t use bad tools: Make sure your thermometer and hygrometer are in working order.
- Don’t add too much water: If the sauna is hot, don’t create too much steam.
- Don’t assume everyone is the same: Some people like the heat better than others.
Tips for the 200 Rule:
- Use good tools: You need a sauna thermometer, hygrometer, and a spoon with water.
- Don’t stay too long: Only stay in the sauna for 15 to 20 minutes.
- Relax: After the sauna, drink water and cool down slowly.
- Different saunas are different: If you have an infrared sauna or a steam sauna, the 200 rule may change a little.
If you are considering investing in a sauna, consider exploring options for an indoor sauna room from a reputable sauna room manufacturer.
Is the 200 Rule Real?
Some people think the 200 rule is a made-up rule. But it’s a great way to stay safe and have fun in the sauna. Knowing the optimal sauna environment is important for your safety and health.
Stories About the 200 Rule:
- One person felt very relaxed at 175°F and 25% humidity.
- An athlete used 160°F and 40% humidity to help his muscles feel better.
- Someone used a steam sauna at 150°F and 50% humidity to help them breathe better.
For those interested in exploring various sauna options, researching indoor sauna dealers can provide valuable insights and access to a range of products.

Questions About the 200 Rule:
Q: Is the 200 Rule safe for kids or older people?
A: Yes, but use lower heat, like 140°F and 60% humidity.
Q: Can I stay in the sauna longer if I use the 200 Rule?
A: No. Stay in for 15 to 20 minutes, no matter what.
Q: Do I need heat if I have humidity?
A: No. You need both heat and humidity for the sauna to work well.
Use the 200 Rule for a Great Sauna!
The 200 rule helps you have a great and safe time in the sauna. Give it a try and see how it works for you! After the sauna, take a cool shower to feel even better.
More About Saunas:
Many people enjoy saunas. In the UK, the number of Finnish saunas is growing very fast. In the US, the sauna business is growing. A study shows that people who use saunas are happier. Scientists are conducting more research on saunas. Saunas are good for your heart. Saunas are becoming a popular way to stay healthy. For sauna lovers, using a sauna is a ritual that brings happiness. It becomes a haven for heat therapy, providing a place for mental relaxation and stress relief. Traditional sauna culture values the practice, and Finnish sauna rituals often incorporate elements to enhance the multi-sensory experience.