Portable Sauna: Types, Real Temperatures, Costs and Whether It's Worth It

A portable sauna is any sauna you can fold away, carry or set up yourself without building a room, and in practice that means one of four things: a steam tent, an infrared tent or box, an infrared sauna blanket, or a wood-fired outdoor tent. The plug-in versions cost £80 to £300 or so on Amazon UK and run cooler than a traditional sauna, usually 45°C to 65°C against 80°C to 100°C. They're worth buying for a regular, cheap heat habit at home, as long as you don't expect a Finnish sauna or believe the weight-loss marketing.

Page one of Google for this term is mostly shop listings and brand pages, each selling one format. This guide covers all of them side by side, with the numbers sellers tend to bury.

The four types of portable sauna

Steam sauna tents

The most common and cheapest type. You get a fabric tent on a folding frame, a chair, and a separate steam generator (essentially a kettle with a hose) that pumps water vapour into the cabin. Your head usually pokes out of a zipped hole at the top, although some models have a hood you can close.

Most single-person steam tents peak at around 45°C to 54°C. That sounds mild, but the air is close to saturated, so sweat can't evaporate off your skin and it feels much hotter than the reading. Generators range from about 1000W to 1600W, with tanks of 2 to 4 litres.

The big quality problem with cheap steam tents is smell. Hot, wet fabric and plastic fittings off-gas, and owners of budget tents often describe a chemical tang that lingers for weeks. Our Runitude portable sauna review covers the one tent we've found that publishes VOC testing on its materials, which is why it costs more than the generic ones. For a first session walk-through, read our guide on how to use a portable steam sauna.

Check the Runitude steam sauna price on Amazon

Infrared sauna tents and boxes

These look similar but heat you differently. Instead of steam, carbon or far infrared panels in the walls warm your skin and the tissue beneath it directly, and the air warms up as a side effect. Typical ceilings are 60°C to 65°C of air temperature, and most add a heated foot pad. Some tents keep your head outside, which is cooler and easier on beginners; taller ones let you sit fully inside.

The heat is dry, so a 60°C infrared tent feels gentler than a 50°C steam tent, and you'll need 30 minutes or more for a proper sweat. Don't mistake gentle for trivial, though. In a 2026 study, 12 healthy adults sat in a far infrared sauna at 65°C for 45 minutes: core temperature rose by 1.4°C, heart rate went from about 74 to 153 bpm, and they sweated around 1.4 litres an hour (far infrared sauna at 65°C study). The same paper notes that earlier work at around 45°C found little real heat build-up, so wattage and temperature matter more than marketing copy suggests.

Box-style units such as the SereneLife infrared sauna box are lower and cheaper. Tents such as the SereneLife infrared sauna tent, the CONLONS tent and the longer Smartmak give you more room to sit back. If you're weighing infrared against the real thing, our infrared sauna vs traditional sauna guide goes through the physiology.

See today's SereneLife infrared sauna tent price

Infrared sauna blankets

A sauna blanket is a padded, zip-up sleeping bag with heating elements in the lining. You lie inside it on a bed or the floor, usually in long sleeves and trousers so your skin isn't against the hot lining. Panel temperatures run from about 25°C up to 80°C or 85°C depending on the model, and most people settle around 60°C to 70°C for 30 to 45 minutes.

Blankets are the most compact option by a distance (one rolls up into a cupboard) and the cheapest to run. The trade-offs: your head is out, you're lying down rather than sitting, and they cost more than a basic tent. Cleaning sweat out of the lining is the chore owners complain about most. Our best sauna blanket UK guide compares the current options, and the HYDRAGUN HeatPod review covers one of the hotter models.

Wood-fired outdoor tents

The odd one out, and the only portable format that can match a traditional sauna on heat. You pitch a heavy canvas or coated tent with a stove jack, put a small wood-burning stove inside with a chimney through the roof, and pile sauna stones on or around the stove. Throw water on the stones and you get proper löyly.

On Amazon UK, the stoves alone (often sold as "hot tent stoves" with a stone basket) start at roughly £110 to £150 before you add a tent rated for a stove. This is outdoor kit only. You need a garden, beach or campsite where open fires are allowed, a supply of dry wood, and real fire sense: a tent that isn't rated for a stove can melt or catch light, and any wood fire in an enclosed space carries a carbon monoxide risk. A battery CO alarm inside the tent is not optional. If what you actually want is a permanent outdoor sauna rather than something you pack down, read our guide to sauna pods instead.

Portable sauna vs traditional sauna: the real temperatures

Here's how the plug-in types compare with a Finnish sauna, using manufacturer ceilings and the figures from the products we've reviewed.

That gap matters when you read health claims. The research behind the headline sauna benefits, including lower blood pressure and lower cardiovascular and all-cause mortality, comes mostly from Finnish cohorts using traditional hot saunas several times a week, as summarised in a 2018 review in Mayo Clinic Proceedings (Laukkanen and colleagues). Those are observational studies, mostly of Finnish men, and nobody has run the equivalent on head-out steam tents. A portable sauna is a real heat stress, as the infrared study above shows, but treat the big Finnish numbers as a best case, not what you're buying. More on what different heat levels do in our sauna temperature guide.

What portable saunas cost in the UK

Prices below are what the models we cover were selling for on Amazon UK when we checked in November 2026. They move often.

• Steam tents: about £80 to £150. The SereneLife steam tent sat at £79.99 and the Runitude at £114.59; extra money mostly buys better materials and a bigger generator.
• Infrared boxes and tents: about £120 to £260. The SereneLife box was £119.99, the SereneLife tent £169.99, CONLONS £219.99 and the larger Smartmak £253.49.
• Infrared blankets: roughly £300 up to around £570 for premium models like the HYDRAGUN HeatPod.
• Wood-fired tents: £110 to £150 for a basic stove, plus a stove-rated tent, flue, stones and wood. Complete kits from specialist brands cost far more.

Running costs for the electric types are small. A 1000W to 1600W unit used for 30 minutes with a 10 minute warm-up uses roughly 0.7 to 1.1kWh, which is about 17p to 27p a session at 25p per kWh.

Setup, space and power

Space. Most single-person tents have a footprint of around 80cm to 120cm square, and heights vary a lot between low boxes and full tents, so check the listing against your ceiling and your own seated height. Measure the room, and leave space to get in and out without crawling over the generator hose.

Floor. Steam tents drip condensation from the base, so put them on a hard floor with a towel or mat underneath, not straight on carpet. Infrared tents are drier but you'll still sweat onto the floor.

Power. Plug straight into a wall socket. A 1600W steam generator on a cheap extension lead, especially one that's coiled up, is asking for an overheated cable. Keep the generator and its plug away from where water can pool.

Setup time. Pop-up tents go up in a minute or two; models with separate poles take longer the first time. Steam tents also need emptying and drying after every use or they'll go musty. Blankets just need wiping down and airing.

Ventilation. Open a window or door in the room after a steam session. Several sessions a week in a small, unventilated bedroom will leave you with damp problems on the walls.

Safety: heat, hydration and who should skip it

Heat exhaustion is the real risk here, and its warning signs are easy to ignore when you're trying to hit a time target. The NHS lists symptoms including tiredness, dizziness, headache, feeling sick, excessive sweating with pale, clammy skin, cramps and feeling very thirsty (NHS: heat exhaustion and heatstroke). If any of those show up, get out, cool down and drink water; the NHS says you should start to feel better within 30 minutes, and to get help from NHS 111 if you don't. Hot skin that has stopped sweating, confusion or a racing heart point to heatstroke, which is an emergency.

The sensible rules:

1. Start at 15 to 20 minutes, two or three times a week, and build up slowly.
2. Drink a glass or two of water before and after. The study above recorded sweat rates of around 1.4 litres an hour, so long sessions need real fluid replacement.
3. No alcohol before or during. It adds to the fluid loss and dulls the warning signs you're relying on to know when to get out.
4. Don't use one alone straight after a hard session if you already feel wiped out; our guide to using a sauna after a workout covers timing.
5. Stand up slowly at the end. Blood pressure can dip after heat, and the infrared study above saw it drop by about 9 mmHg straight after.

Check with your GP first if you're pregnant, have heart disease or high or low blood pressure, take medication that affects heart rate or sweating, or have diabetes with any nerve damage in your feet (you may not feel a foot pad getting too hot).

What a portable sauna won't do

It won't detox you. Your liver and kidneys clear waste; sweat is mostly water and salt. It won't help you lose fat in any meaningful amount either. The scales drop after a session because you've sweated out fluid, and that weight comes straight back when you drink. Sellers that lead with "detox" and "burn 600 calories" are telling you something about their marketing, not their product.

So, are portable saunas worth it?

For most people who ask, yes, with conditions. If you'd use one three or four times a week to unwind, ease stiff legs after training and sleep better, a decent £110 to £250 tent costs less than a year of most gym spa add-ons, and running costs are pennies. The heat is genuine: enough to raise your core temperature and heart rate, even if it's a step down from a Finnish sauna.

They're not worth it if you want the full sauna experience of breathing hot air with your whole body in the heat (look at a wood-fired tent or a sauna pod), if you're short on space and won't put it up regularly (a blanket fits better), or if you're buying for weight loss.

Our picks by type: the Runitude for steam, the SereneLife or CONLONS tent for infrared on a budget, and a blanket if storage is the deciding factor. Spend the extra on materials that don't smell when hot, because that's the thing that decides whether you're still using it in six months.

Recommended reads

• How to use a portable steam sauna
• Best sauna blanket UK
• Infrared sauna vs traditional sauna
• Runitude portable sauna tent review
• Recovery equipment hub