Infrared saunas save more money over time, costing roughly $3,480 total over a decade compared to around $8,995 for a traditional sauna, a difference of about $5,500 driven by lower upfront costs, cheaper installation, and significantly less electricity per session.
You're looking at a sauna for your home. Maybe you've read the research on heat shock proteins or the Finnish longevity data. Now you're stuck on the practical question: Which one makes sense financially, not just this month but over the next five years?
Let's break it down by the numbers. Infrared and traditional (steam) saunas differ in upfront cost, installation complexity, energy use, maintenance, and lifespan. The short version: Infrared wins on installation cost and energy efficiency. Traditional saunas hold their value longer and deliver a different heat experience. Here's what that means for your wallet.
Upfront Installation Costs: Infrared Is Cheaper to Get In
Infrared saunas are typically sold as prefabricated kits. You buy a cedar box with carbon or ceramic heaters already installed. Most models plug into a standard 120-volt outlet. No electrical work required unless you're running a dedicated circuit for a larger unit. Installation involves assembling the panels, screwing them together, and plugging it in. Expect to spend $1,500 to $4,000 for a quality two-person infrared sauna. Installation costs, if you hire someone, range from $200 to $500 for assembly and placement.
Traditional steam saunas require a dedicated 220-volt electrical line, a separate heater unit (usually a Harvia or Saunacore), proper ventilation, and a moisture-proof enclosure. If you're building one from scratch, you're looking at framing, insulation, vapor barrier, cedar paneling, and a glass door. A prefab traditional sauna kit runs $3,000 to $7,000 for a similar size. Installation costs—including electrical work, assembly, and ventilation—add $1,000 to $2,500. Some municipalities require permits for the electrical and structural work, which adds another $200 to $500.
Bottom line: Infrared costs $1,700 to $4,500 total upfront. Traditional costs $4,000 to $9,500 total upfront. Infrared wins the initial outlay by a significant margin.
Energy Costs: Infrared Uses Less Electricity Per Session
Infrared saunas heat the body directly, not the air. You'll reach operating temperature in 10 to 15 minutes. Most sessions run 30 to 45 minutes. Energy consumption averages 1.5 to 2.5 kilowatt-hours per session. At the U.S. average electricity rate of $0.14 per kWh, that's about $0.21 to $0.35 per use.
Traditional saunas heat a pile of rocks, which then radiate heat into the air. Preheating takes 30 to 60 minutes. A typical session lasts 15 to 20 minutes. Energy consumption runs 4 to 8 kWh per session, costing $0.56 to $1.12 per use.
If you sauna four times per week, infrared costs roughly $36 to $60 per year in electricity. Traditional costs $116 to $233 per year. Over five years, the difference adds up to $400 to $865.
Maintenance Costs: Infrared Is Simpler
Infrared saunas have no moving parts. Heaters are solid-state. The only maintenance is wiping down the benches and occasionally replacing a heater element if it fails (rare, but expect $100 to $300 per replacement every 5 to 10 years). No water, no steam, no plumbing.
Traditional saunas require more attention. The heater element may corrode over time, especially in hard water areas. The rocks need replacing every 1 to 2 years ($30 to $60). The vapor barrier and cedar can warp or develop mold if ventilation is poor. You'll also need to clean the interior more aggressively to prevent bacterial growth from humidity. Expect $50 to $150 per year in maintenance for a traditional sauna.
Lifespan and Resale Value
A well-built infrared sauna lasts 10 to 15 years. The heaters may degrade after that, but the cabin itself holds up. Resale value is low—these are often custom-fitted and not easily moved.
A traditional sauna, built with proper materials and ventilation, can last 20 to 30 years or more. The heater may need replacement after 10 to 15 years ($500 to $1,200), but the structure itself is durable. Resale value is higher because traditional saunas are considered permanent fixtures that add to a home's appeal.
Total Cost of Ownership Over 10 Years
Let's run the numbers for a four-times-per-week user over a decade.
Infrared sauna (two-person, standard kit):
- Upfront cost: $2,500 (mid-range)
- Installation: $300
- Electricity: $480 (10 years at $48/year)
- Maintenance: $200 (one heater replacement)
- Total: $3,480
Traditional sauna (two-person, prefab kit):
- Upfront cost: $5,000
- Installation: $1,500
- Electricity: $1,745 (10 years at $174.50/year)
- Maintenance: $750 (rocks, heater replacement, cleaning supplies)
- Total: $8,995
Infrared saves you roughly $5,500 over a decade. That's real money.
What the Numbers Don't Capture
Cost isn't the only factor. Traditional saunas deliver a different experience—higher ambient heat (180°F to 200°F versus infrared's 120°F to 150°F), a more intense sweat, and the ritual of pouring water over hot rocks. Some research suggests the rapid temperature changes in a traditional sauna (hot to cold) may stimulate cardiovascular adaptation more effectively than infrared's steady heat. That's not a settled point, but it's worth considering if your goal is heart health.
Infrared saunas are easier on the respiratory system (no steam) and better for people who struggle with high heat. They also allow longer sessions, which may be useful for heat shock protein activation (a mechanism linked to cellular repair). The trade-off is a less intense thermal stress.
Practical Takeaways
- If budget is your primary concern, infrared wins. Lower upfront cost, lower energy bills, simpler installation.
- If you plan to stay in your home for 15+ years and value the traditional experience, a traditional sauna may be worth the premium. The longevity and resale value offset some of the higher costs.
- Factor in your local electricity rates. If you live somewhere with cheap power (under $0.10/kWh), the energy gap narrows. If you're in California or the Northeast at $0.20+/kWh, infrared's advantage grows.
- Don't underestimate installation complexity. A traditional sauna that requires structural work, permits, and an electrician can double your upfront cost. Get quotes before committing.
- Consider your health goals. If you're using sauna primarily for cardiovascular conditioning and don't mind a shorter, hotter session, traditional is worth the investment. If you want longer, lower-temperature sessions for recovery or relaxation, infrared is more practical.
The right choice depends on your budget, your home setup, and what you want from the heat. Both options deliver genuine health benefits. Infrared is the cheaper path to get there. Traditional is the pricier path with a longer payoff window. Neither is wrong—they're just different tools for the same job.
Frequently asked questions
How much does it cost to run an infrared sauna vs a traditional sauna?
An infrared sauna uses around 1.5 to 2.5 kilowatt-hours per session, costing roughly $0.21 to $0.35 at the U.S. average electricity rate. A traditional sauna uses 4 to 8 kilowatt-hours per session, costing $0.56 to $1.12. For someone using a sauna four times a week, that works out to about $36 to $60 per year for infrared versus $116 to $233 per year for traditional.
What are the upfront costs of an infrared sauna compared to a traditional sauna?
A quality two-person infrared sauna kit typically runs $1,500 to $4,000, with installation adding $200 to $500, bringing the total to roughly $1,700 to $4,500. A comparable traditional sauna kit costs $3,000 to $7,000, and installation including electrical work and ventilation adds $1,000 to $2,500, pushing the total to $4,000 to $9,500.
Which type of sauna lasts longer, infrared or traditional?
A well-built traditional sauna can last 20 to 30 years or more, significantly outlasting a typical infrared sauna, which lasts around 10 to 15 years. Traditional saunas are also considered permanent fixtures and carry higher resale value, while infrared units are harder to move and tend to have low resale appeal.
Is a traditional sauna worth the extra cost?
It depends on your goals and how long you plan to stay in your home. If you value the higher ambient heat, the ritual experience, or potential cardiovascular benefits from intense heat exposure, the premium may be worthwhile. The article notes that if you plan to stay for 15 or more years, the longevity and resale value of a traditional sauna can offset some of the higher costs.