A barrel sauna rewards a bit of routine. The heat itself is simple, but session length, temperature, and how you cool down between rounds make the difference between a session that feels great and one that just feels like sitting in a hot box. Here’s a practical rundown, along with who should check with a doctor before starting.
Not medical adviceThis is general, practical guidance, not a substitute for advice from your doctor — especially if any of the conditions below apply to you.
Before your first session
Drink a glass or two of water in the hour beforehand, and avoid a heavy meal right before you go in — give it about an hour. Skip alcohol around sauna use entirely; it works against your body’s ability to regulate temperature and makes dehydration and dizziness more likely. Let your heater fully reach temperature before you start timing your session.
Session length and temperature
If you’re new to it, start on the lower bench (it runs noticeably cooler than the top bench) at around 150-175°F for 5-10 minutes. Build up gradually from there as you get used to the heat — there’s no benefit to pushing straight to a long session, and most of the value comes from consistent, moderate use over time rather than one extreme sitting. As a general ceiling, avoid staying in for more than 20-30 minutes at a stretch regardless of experience.
Cooling down between rounds
The cool-down between rounds isn’t just a break — it’s when your body does a lot of the work. A cool shower or a few minutes in outside air, sitting or lying down rather than standing (standing up too fast after heat exposure can make you lightheaded), works well. Rest for several minutes before deciding whether to go back in for another round.
How many rounds, how often
One to three rounds of 5-15 minutes each, with a proper cool-down in between, is a normal session for most regular users. If you’re just starting out, once or twice a week is plenty; people who use their sauna regularly often work up to 3-4 sessions a week over time. Let your own tolerance be the guide rather than a fixed target.
Check with a doctor first if
- You’re pregnant
- You have heart disease, uncontrolled high or low blood pressure, or had a recent cardiac event
- You take medication that affects your heart rate, blood pressure, or hydration
- You have a condition affecting temperature regulation or are prone to fainting
Children should be supervised closely and kept to shorter sessions at lower temperatures than adults, if they use the sauna at all.
Exit immediately if you notice
- Dizziness or lightheadedness
- Nausea
- An irregular, pounding, or racing heartbeat
- Trouble breathing
Get up slowly, sit down somewhere cool, and sip water. If symptoms don’t ease off quickly, seek medical attention.
After your session
Rehydrate once you’re done. Prop the door open for 30-60 minutes afterward so the room can dry out fully — a sauna that’s closed up wet after every use is the fastest way to end up with mold or a warped bench. Wipe benches down with a damp cloth rather than any cleaning chemicals.
Next step
If you haven’t set your sauna up yet, see our barrel sauna assembly guide or our installation guide. Already using one and have a question we haven’t covered? Check our FAQ or contact us directly.