Last updated 2026-07-09

What portable saunas does Costco actually sell?

Costco's most consistently stocked portable sauna is the HoMedics steam unit. It is a fabric tent with a fold-out chair, a plug-in steam generator, and a small remote. You sit inside with your head poking out through a collar, run the generator, and sweat for 15 to 30 minutes. That is the whole product.

Costco's portable sauna lineup shifts around, but HoMedics is the brand most shoppers mean when they type "homedics portable steam sauna costco." The store also rotates in Durherm, SereneLife, and occasional bundles, though those come and go. Stock varies by region and season. Costco runs wellness gear on a deal cycle, so a unit sits in-warehouse for a few months and then vanishes until the next contract.

Here is the part people miss before they drive over. These are not infrared saunas, and they are not traditional Finnish dry saunas. They use a plug-in steam generator, usually 600 to 1000 watts, that boils water and pushes humid steam into the fabric enclosure. The experience sits closer to a steam room than a sauna. If you want a real sauna or a wood-paneled home sauna, that is a different category entirely.

How much does a Costco portable sauna cost?

The HoMedics portable steam sauna has shown up at Costco between $50 and $100 in-warehouse, and up to $130 to $150 on Costco.com with shipping included. Amazon and Target stock the same or equivalent HoMedics models for $60 to $120, so Costco's price is competitive rather than a steal ^[1].

Here is roughly how the portable steam sauna stacks up against other at-home options:

At $50 to $150, the Costco portable steam sauna is the cheapest way to get a sweat session at home. The tradeoff is real: you are getting a fabric bag on a folding chair, not a sauna. Operating cost stays tiny. A 1000-watt generator running 30 minutes costs about 8 cents at the US average residential rate of roughly $0.16 per kWh ^[2].

Costco's return policy softens the risk. The company offers a satisfaction guarantee on most items with no stated time limit, though some electronics carry a 90-day window, so check the current policy for your specific unit ^[3]. That safety net makes a borderline buy easier to justify.

What do the HoMedics portable steam sauna specs actually mean?

The HoMedics portable steam sauna sold at Costco typically lists these specs:

• Steam generator: 800 to 1000 watts
• Water tank: 1.5 to 2 liters
• Session time: up to 30 minutes on a full tank
• Temperature: listed as "up to 131°F" in some descriptions, though real ambient air inside the tent lands closer to 110 to 120°F
• Dimensions: roughly 35" x 35" x 44" assembled, depending on the model year

Wattage tells you how fast steam builds and how hot the tent gets. 800 to 1000 watts is normal for this category. Infrared panels in a proper portable sauna run 1400 to 2400 watts and hit higher dry-heat numbers. So the HoMedics unit is not underpowered for what it is, since steam saturates a small tent fast. Just do not expect the 170 to 195°F of a Finnish sauna ^[4].

The remote or timer sets session length and, on some models, steam intensity. Simpler units have an on/off switch and nothing else. The tent's neck collar closes around your head so your body sweats while your face stays cooler and breathes ambient air instead of pure steam. That design is on purpose. Breathing very hot saturated steam is unpleasant and does nothing extra for the cardiovascular response you want.

The chair matters more than buyers expect. Cheap folding chairs wobble, and sitting still inside a hot tent for 25 minutes on a shaky seat is miserable. Some HoMedics kits include a decent chair, others a flimsy one. Look at buyer photos on Costco.com or Amazon before you commit.

Is a portable steam sauna as good as a real sauna?

Short answer: no. It depends on what you want out of it.

The effects people chase from saunas, higher heart rate, raised core temperature, heavy sweating, do happen in portable steam units, just at lower intensity. A traditional sauna at 170 to 195°F creates a sharper heat stress response than a steam tent at 115°F ^[4]. The research behind sauna health claims, including the widely cited Laukkanen et al. review in Mayo Clinic Proceedings (2018), rests almost entirely on Finnish dry sauna use at those higher temperatures ^[5]. "Regular sauna bathing is associated with reduced risk of cardiovascular events," that paper concluded, but the exposure studied was Finnish-style sauna, not a plug-in steam tent.

That does not mean the steam tent is useless. You will sweat. Your heart rate will climb. Used consistently, it gives you the routine of deliberate heat exposure. You are just not matching the temperature or the feel of a traditional sauna, and the research does not transfer cleanly.

For light relaxation and an easy sweat, the HoMedics unit does the job. For anyone serious about contrast therapy (heat paired with a cold plunge or ice bath), the steam tent tends to underwhelm as the heat half. The swing between a 115°F tent and a 50°F plunge is real, but the heat load is lower than most contrast protocols call for ^[6].

If you want the full split between steam and dry heat before spending anything, the sauna vs steam room breakdown lays it out.

What are the real pros and cons of the Costco portable steam sauna?

Here is the honest rundown.

Pros:

• Price. Nothing lowers the barrier to a home sweat session more.
• Storage. The tent folds into a carry bag. Stash it in a closet, set it up in 5 minutes on the bathroom floor.
• No installation. Plug it in. Done. No electrical work, no ventilation specs, no permits.
• Humidity. If dry heat bothers you, the moist steam feels gentler.
• Low operating cost. A few cents per session.

Cons:

• Temperature ceiling. At 110 to 120°F ambient, you never reach the thermal load of a traditional sauna.
• Durability. Fabric tents, plastic generators, and cheap chairs wear out. Most buyers report 1 to 3 years of regular use before something fails.
• The experience. Sitting in a fabric bag with your head sticking out is not spa-like.
• Humidity downside. High humidity at low temperature does not produce the cardiovascular stimulus of dry high heat ^[5].
• Mold risk. Skip drying the tent and generator and mold sets up inside the fabric.
• No shared use. One person, barely.

The Costco unit earns its spot as an entry-level product. For someone who has never tried heat bathing and wants to test the habit before dropping $2,000 to $5,000 on a real setup, it is a fair experiment. For an experienced sauna user, it feels like a downgrade.

Are there any safety concerns with portable steam saunas?

A few real ones worth stating plainly.

Burn risk. The steam nozzle and hose get hot. HoMedics units have some insulation, but skin contact with the hose or nozzle can burn you. Route the hose away from your body inside the tent.

Cardiovascular load. Any heat raises heart rate. People with cardiovascular disease, low blood pressure, or a pregnancy should talk to a doctor before regular use. The American College of Obstetricians and Gynecologists advises pregnant people to avoid raising core body temperature above 102.2°F (39°C) ^[7]. A 115°F steam tent probably does not push core temperature that high in a short session, but nobody has good data on this specific product category.

Dehydration. A 20-minute steam session pulls real fluid through sweat. Drink water before and after.

Electrical safety. You are pairing a plug-in appliance with steam and humidity. Use the unit near a GFCI outlet, which the National Electrical Code requires in bathrooms, kitchens, and other wet locations ^[8]. Never run it with a damaged cord or near standing water.

Overheating. The tent traps heat and humidity around your body. Feel dizzy, nauseous, or unusually drained? Get out. Fifteen minutes covers most sessions, especially early on.

None of this is exotic or wildly different from a regular sauna. It is worth saying clearly because the low price and casual setup tempt people to treat a steam tent as a toy instead of heat therapy equipment.

How does the Costco portable sauna compare to other portable saunas?

The HoMedics model at Costco is one of several near-identical portable steam tents on the market. SereneLife, Durherm, Radiant Saunas, and others sell the same concept: fabric tent, fold-out chair, plug-in steam generator, neck collar. The differences come down to watt rating, tank size, chair quality, and warranty.

Portable infrared saunas are a genuinely different animal. Instead of steam, they use far-infrared panels sewn into the tent walls. Temperature tops out around 130 to 150°F, still under traditional dry sauna levels but hotter than most steam tents. HigherDOSE, Serene, and SaunaSpace make infrared blankets and tents at $200 to $600. HigherDOSE's infrared sauna blanket runs $599 and leans hard on low-EMF marketing, though the evidence that EMF from consumer IR products causes harm is thin ^[10].

SweatDecks carries a curated set of portable saunas covering both steam and infrared, which helps if you want to line up specs side by side before deciding.

For the serious buyer, neither a steam tent nor an infrared blanket replaces a traditional sauna. A real barrel or cabin sauna at 170 to 195°F with proper ventilation and the option to pour water on hot rocks (löyly) is a different level entirely. The outdoor sauna format works for homeowners with yard space and a budget above $3,000.

The question underneath all of it: what do you actually want? A steam tent answers "cheapest possible home sweat." It does not answer "the feel of a Finnish sauna."

How do you set up and use the Costco HoMedics portable steam sauna?

Setup is genuinely simple.

1. Unfold the tent and pop it open. Most models clip or velcro into a frame; some thread lightweight poles. 2. Place the fold-out chair inside. 3. Fill the generator tank with distilled or filtered water. Tap water works, but mineral deposits build faster and cut the generator's life. 4. Connect the steam hose to the tent's inlet, usually low on the front. 5. Plug in the generator. Set the timer (15 to 30 minutes is typical). 6. Sit down, put your head through the neck collar, and close it around your neck with the elastic or velcro. 7. Wait 2 to 3 minutes for steam to fill the tent before the real sweating starts.

Session tips: shower first to open pores. Drink 16 to 20 oz of water beforehand. Keep a towel nearby for your face. Leave your phone outside (humidity kills electronics). When the session ends, towel off before the sweat cools on your skin.

Afterward: drain and dry the generator completely. Leave the tent unzipped to air-dry. Never store it folded while damp. This is the step most people skip, and it is exactly why mold complaints surface in reviews about 6 to 12 months in.

If you plan to pair a steam session with cold water immersion, read up on cold plunge benefits first so you understand the actual protocol.

Does Costco sell traditional or infrared saunas, too?

Yes, though inventory swings. Costco has carried larger sauna products at various points, including pre-built 1-person and 2-person infrared cabins from Dynamic Saunas, Radiant Saunas, and JNH Lifestyles. These show up on Costco.com more than in-warehouse and usually price between $800 and $2,500 depending on size and panel type ^[1].

The rotation model means a specific model may be available for a short window, then gone. Read the online reviews carefully. Common complaints: missing hardware, assembly that fights a single person, and shaky customer service when parts arrive damaged.

For a full comparison of what Costco carries across the category, the costco sauna guide covers the broader lineup including the larger infrared cabins.

If the specific Costco sauna you read about is sold out, the same models often turn up at Home Depot, Sam's Club, and specialty retailers. Dynamic Saunas, for example, sells through several channels. Always check the carbon panel vs. ceramic heater distinction: carbon panels cover more surface area and run cooler (typically 110 to 130°F), while ceramic heaters run hotter but stay small and can heat unevenly. Neither matches Finnish dry heat, but carbon panel infrared is the more common preference among regular users.

Understanding sauna benefits helps clarify whether the temperature gap between an infrared cabin and a steam tent actually matters for your goals.

Is the Costco portable sauna worth buying, or should you spend more?

Here is my actual take.

If you have never done regular heat sessions at home and you are not sure you will stick with it, the $50 to $100 Costco portable steam sauna is a smart way to find out. You are not locking into a four-figure buy. Use it three times a week for six months, decide you want more, and you have learned something real about yourself for almost no money.

If you already know you love sauna, the steam tent will let you down. Temperature too low. Experience too awkward. Build too flimsy for hard daily use.

The gap between a $100 steam tent and a $1,500 infrared cabin is real, and so is the gap between $1,500 and a proper $5,000 wood sauna. Each step up buys something you can feel: higher temperatures, a better thermal experience, longer durability, and for traditional saunas, the ability to pour water on rocks for genuine steam (löyly) inside high heat, which is nothing like the low-heat high-humidity of a steam tent.

The honest sweet spot for most homeowners who want real sauna benefits is a pre-built 1-person infrared cabin at $800 to $1,500, or a traditional barrel sauna at $3,000 to $5,000 installed. The portable steam tent sits below that, not on the path toward it.

If you are weighing broader home wellness gear including cold plunge setups, SweatDecks (sweatdecks.com) has product guides and curated picks spanning entry-level to serious builds, which saves time when you compare across categories.

Bottom line: buy the Costco steam tent to test the habit. Graduate when you are ready. Do not talk yourself into believing the $100 version scratches the same itch as a real sauna.

Frequently asked questions

What brand of portable sauna does Costco sell?

The most common portable sauna brand at Costco is HoMedics. The HoMedics portable steam sauna has appeared in-warehouse and on Costco.com periodically. Costco also occasionally stocks Radiant Saunas or other brands for larger infrared cabin units. Inventory rotates, so availability depends on your region and the time of year. Check Costco.com before driving to a warehouse.

How much does the Costco HoMedics portable steam sauna cost?

At Costco the HoMedics portable steam sauna has sold for roughly $50 to $100 in-warehouse, sometimes up to $130 to $150 online with shipping. Prices vary by model year and promotion. Comparable units at Target or Amazon typically run $60 to $120, so Costco's price sits in line with the market rather than dramatically discounted.

Is the portable steam sauna at Costco an infrared sauna?

No. The portable steam saunas Costco sells, including the HoMedics model, use a plug-in steam generator to fill a fabric tent with humid steam. That is closer to a steam room than a sauna. Infrared saunas use radiant heat panels instead. Costco does sell some infrared cabin units separately, but the low-price portable tent is steam only.

Can the Costco portable sauna fit two people?

No. The portable steam tent is a one-person unit. You sit on a folding chair inside with your head out through a neck collar, and the enclosure is sized for a single person. If you want a two-person or larger setup, you need a pre-built infrared cabin or a traditional sauna, both of which cost considerably more.

What temperature does the Costco portable steam sauna reach?

Marketing listings sometimes claim up to 131°F, but real ambient air inside the tent typically lands closer to 110 to 120°F. That is well below the 170 to 195°F of a traditional Finnish dry sauna. The humidity inside runs high, which makes it feel warmer than a dry room at the same temperature, but the actual thermal load is lower.

How long should I spend in a portable steam sauna?

Most portable steam sauna sessions run 15 to 30 minutes. The HoMedics generator holds enough water for about 30 minutes at full output. Starting at 15 minutes is reasonable if you are new to heat sessions. Drink water before and after. If you feel dizzy or nauseous, get out immediately. There is no strong evidence that longer sessions produce proportionally better results.

Does Costco have a good return policy on portable saunas?

Costco offers a satisfaction guarantee on most products. Some electronics carry a 90-day return window, which may apply to the steam generator component. The tent and accessories likely fall under the broader no-time-limit guarantee. Confirm the current policy for your specific item at checkout or with Costco member services, since policies change and electronics are sometimes treated separately.

How do I prevent mold in my portable steam sauna?

Drain the steam generator tank completely after every session. Leave the tent unzipped and open in a ventilated area to air-dry before folding it for storage. Never store the tent while damp. Filtered or distilled water instead of tap also reduces mineral buildup in the generator, which can harbor bacteria over time. This maintenance step is what most buyers skip, and mold is the typical result 6 to 12 months in.

Is a portable steam sauna safe to use every day?

For most healthy adults, daily 15 to 20 minute sessions in a portable steam tent carry low risk. Stay hydrated, avoid use after heavy alcohol, and get out if you feel unwell. People with cardiovascular conditions, low blood pressure, or a pregnancy should consult a doctor first. The American College of Obstetricians and Gynecologists recommends pregnant people avoid raising core temperature above 102.2°F.

What is the difference between the Costco portable sauna and a real sauna?

Temperature is the main difference. A traditional sauna runs at 170 to 195°F with low humidity, creating a strong heat stress response. The Costco steam tent runs at 110 to 120°F with near-100% humidity. The research linking sauna use to cardiovascular benefits is based on Finnish dry sauna at high temperatures, not portable steam tents. Both make you sweat, but the physiological stimulus differs meaningfully.

Can I use the Costco portable sauna outdoors?

You can set it up outdoors, but the steam generator is an electrical appliance and must stay dry and plugged into a GFCI-protected outlet. Wind also disrupts the tent and makes holding heat harder. For most people, indoor use in a bathroom or spare room works better. If outdoor use matters to you, a traditional barrel sauna or a proper outdoor electric sauna is a more durable option.

Does Costco sell sauna accessories like towels, buckets, or ladles?

Costco occasionally stocks sauna accessories, but not consistently. The store's wellness rotation prioritizes the main unit over accessories. Dedicated sauna towels, wooden buckets, and ladles for traditional saunas are more reliably found at specialty sauna retailers or on Amazon. The HoMedics portable steam unit does not use water-on-rocks (löyly), so traditional accessories do not apply to it.

How do I get the most out of a portable steam sauna session?

Shower beforehand to clean skin and open pores. Drink 16 to 20 oz of water before the session. Keep sessions to 15 to 25 minutes. Towel off immediately after so sweat does not cool on your skin. Follow with a cool shower if you tolerate it. Consistency beats duration: two to four sessions per week over months does more than occasional long sessions.

Sources

1. Costco Wholesale, Sauna & Steam Room category: Costco sells portable steam saunas and infrared sauna cabins online; pricing for portable steam models has ranged from approximately $50 to $150 and infrared cabins from $800 to $2,500 depending on size and model.
2. U.S. Energy Information Administration, Electricity Monthly Update: Average US residential electricity rate is approximately $0.16 per kWh, making a 30-minute 1000-watt steam sauna session cost roughly 8 cents.
3. Costco Wholesale, Return Policy / Satisfaction Guarantee: Costco offers a satisfaction guarantee on most products; some electronics have a 90-day return window.
4. Harvard Health Publishing, Sauna Health Benefits: Traditional Finnish saunas operate at 170 to 195°F (77 to 90°C); this temperature range is the basis for most sauna health research.
5. Laukkanen JA et al., Mayo Clinic Proceedings 2018, Cardiovascular and Other Health Benefits of Sauna Bathing: "Regular sauna bathing is associated with reduced risk of cardiovascular events"; the study population used Finnish dry saunas at high temperatures, not portable steam tents.
6. Mooventhan A, Nivethitha L, North American Journal of Medical Sciences 2014, Scientific Evidence-Based Effects of Hydrotherapy on Various Systems of the Body: Contrast therapy (alternating heat and cold) produces cardiovascular and autonomic responses; protocols typically specify higher baseline heat temperatures than portable steam tents achieve.
7. American College of Obstetricians and Gynecologists, FAQ on Exercise During Pregnancy: ACOG advises pregnant people to avoid raising core body temperature above 102.2°F (39°C) during exercise or heat exposure.
8. National Fire Protection Association, NFPA 70 National Electrical Code, Article 210.8: The National Electrical Code requires GFCI-protected outlets in bathrooms, kitchens, and other wet or damp locations where portable electrical appliances may be used.
9. Hussain J, Cohen M, Evidence-Based Complementary and Alternative Medicine 2018, Clinical Effects of Regular Dry Sauna Bathing: Regular dry sauna bathing is associated with cardiovascular and relaxation benefits; research is based on dry saunas operating above 160°F, distinct from steam tent conditions.