Infrared Sauna vs Steam Sauna: What's the Real Difference?
These two get compared constantly, but they're genuinely different experiences. An infrared sauna and a steam sauna heat your body through completely different mechanisms, feel different, cost different amounts to run, and deliver slightly different health benefits. Here's what actually matters when choosing between them.
Shop infrared saunas at SweatDecks
- FD-1 Full-Spectrum Infrared Sauna - $4,695
- FD-3 Full Spectrum Infrared Sauna - $6,495
Affirm financing available. Free curbside shipping on orders over $5,000. See all infrared saunas.
How They Work
Infrared Saunas
Infrared saunas use carbon or ceramic heating panels that emit infrared light waves. These waves penetrate your skin directly and heat your body from the inside out, without heating the surrounding air much. The cabin temperature stays between 120-150F, which feels noticeably milder than a traditional sauna. You still sweat heavily - it just happens at a lower ambient temperature.
Steam Saunas
Steam saunas (also called steam rooms or wet saunas) use a steam generator to pump hot, moisture-saturated air into an enclosed space. Temperatures typically run 110-120F, but the humidity sits at nearly 100%. That thick, wet heat makes it feel significantly hotter than the thermometer suggests. The air is heavy, and you feel it in your lungs immediately.
The Experience: How They Feel
This is where personal preference matters most. Infrared saunas feel like sitting in warm sunshine. The heat is gentle, dry, and penetrating. You can sit comfortably for 30-45 minutes without feeling overwhelmed. Breathing is easy. Many people read, meditate, or scroll their phone during infrared sessions.
Steam saunas are intense. The moisture-heavy air coats your skin, and you start dripping almost immediately - though it's hard to tell what's sweat and what's condensation. Breathing feels thicker. Sessions tend to be shorter, usually 15-20 minutes. It's a more dramatic, enveloping experience.
Health Benefits Comparison
Both deliver:
- Increased circulation and blood flow
- Muscle relaxation and reduced soreness
- Stress reduction through heat exposure
- Improved sleep quality
- Skin cleansing through sweating
Infrared-specific benefits:
- Deeper tissue penetration: Infrared waves reach 1.5-2 inches into tissue, which may improve deep muscle recovery and joint pain relief
- Lower cardiovascular stress: The gentler temperatures put less strain on the heart, making infrared saunas more accessible for people with certain health conditions
- Longer sessions: You can sit longer at lower temps, potentially accumulating more total heat exposure per session
Steam-specific benefits:
- Respiratory relief: The humid air opens airways and can help with congestion, sinusitis, and mild respiratory issues
- Skin hydration: Steam opens pores and adds moisture to the skin, which some dermatologists recommend for certain skin conditions
- More intense detoxification: The higher perceived heat drives more aggressive sweating in shorter sessions
Cost and Installation
| Category | Infrared Sauna | Steam Sauna |
|---|---|---|
| Unit Cost | $1,500-$6,000 | $2,000-$8,000 (generator + enclosure) |
| Installation | Plug-in (120V) to hardwired (240V) | Plumbing + electrical + waterproofing |
| Monthly Energy | $10-$25 | $20-$50 |
| Maintenance | Minimal - wipe down panels | Higher - descale generator, manage moisture, prevent mold |
| Preheat Time | 10-20 minutes | 15-30 minutes |
Maintenance Reality Check
Infrared saunas are remarkably easy to maintain. No water, no steam, no moisture issues. Wipe the benches, maybe vacuum once in a while. That's it.
Steam saunas require real attention. All that moisture creates a perfect environment for mold and mildew if you're not careful. The steam generator needs descaling every few months (more if you have hard water). The enclosure must be fully waterproofed with proper drainage. Tiles, grout, and seals need regular inspection. It's not overwhelming, but it's a genuine ongoing commitment compared to infrared's nearly zero maintenance.
Space Requirements
Infrared saunas are generally more compact and flexible with placement. Many 1-2 person models fit in a corner of a bedroom, closet, or small bathroom. They don't produce moisture, so you don't need special waterproofing or drainage.
Steam saunas need a fully sealed, waterproof enclosure with a drain. They're typically built into a bathroom or dedicated space. The steam generator itself also needs a nearby location with water and electrical connections. More complex, more space, more planning.
The Verdict
Choose infrared if you:
- Prefer a gentler, dry heat experience
- Want easy installation (some models just plug in)
- Have limited space
- Want virtually zero maintenance
- Plan to do longer, more relaxed sessions
Choose steam if you:
- Love the feel of thick, humid heat
- Want respiratory benefits from steam
- Are building out a dedicated spa bathroom
- Don't mind the maintenance commitment
- Prefer a more intense, shorter session
Find Your Fit at SweatDecks
We carry a full range of infrared saunas from compact 1-person units to spacious 4-person cabins. If you're leaning toward a traditional heated experience, browse our full sauna collection to see what fits your space and budget. Free shipping over $5,000, and every unit is HSA/FSA eligible.
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