Recovery · At home
The home spa: garden saunas, ice baths and infrared cabins that are worth the space
A barrel sauna and a chest freezer full of cold water now sit in a surprising number of British gardens. What the kit costs, what it costs to run, what each version does well, and when a club membership is simply the better spa.
Updated September 2026 · Facilities and prices are illustrative and need verification
The home spa market
| Kit | Price range | Running cost | Space | Good for | Watch for |
|---|---|---|---|---|---|
| Barrel or cabin sauna (electric) | £3,000 to £12,000 | £1 to £2 per session | 2 to 4 m² outdoors | Proper Finnish heat at home | Needs a dedicated electrical circuit; planning rules for outbuildings |
| Wood-fired sauna | £4,000 to £15,000 | Firewood | Outdoors, away from buildings | Authentic heat and ritual | Slow to heat; insurance and smoke |
| Infrared cabin | £1,500 to £6,000 | £0.50 per session | 1 to 2 m² indoors | Gentle heat, small spaces | Not a sauna in the research sense |
| Ice bath tub (insulated) | £150 to £1,200 | Ice or nothing | 1 m² outdoors | Cold immersion on a budget | Water hygiene; needs regular changes or a chiller |
| Chilled plunge (with chiller unit) | £3,000 to £10,000 | £10 to £30/month electricity | 1.5 m² outdoors or garage | Set-and-forget cold at a stable temperature | Filtration maintenance |
| Hot tub | £4,000 to £15,000 | £30 to £70/month | 4 to 6 m² outdoors | Warm soak, social | High running cost; not a thermal circuit on its own |
| Sauna tent (portable) | £200 to £600 | Minimal | Foldable | Trying the habit before investing | Low heat; short lifespan |
UK retail ranges, September 2026, excluding installation and electrical work. Verify against retailers.
Home versus club, honestly
A £6,000 sauna and a £3,000 chilled plunge is roughly four years of a premium club membership. If you also want a pool, a gym floor and someone to clean it, the club wins. If you want contrast therapy at 6am in your own garden, three times a week, with no lounger politics, the home spa pays back and keeps paying. Many people end up with both: a mid-tier club for training and a garden sauna for recovery.
Buying order
Cold first. An insulated tub is under £500 and delivers most of the benefit of a £5,000 chilled plunge if you can tolerate changing water and adding ice. Then heat: an electric barrel sauna is the sweet spot for cost, speed and real temperature. Infrared cabins are a compromise for flats and small gardens, not a substitute.
Practicalities
Electric saunas usually need a dedicated 16 to 32 amp circuit installed by an electrician. Outbuildings under 2.5m tall within 2m of a boundary are usually permitted development in England, but check. Plunge water needs changing or filtering weekly; a chiller with filtration is the difference between a habit and a swamp.
The rest of the home gym
A home spa sits naturally alongside home fitness kit. Our home recovery kit guide covers compression boots, massage guns and mats, and garden gym rooms covers the building.
FAQs
Common questions
How much does a garden sauna cost to run?
An electric 6kW sauna heating for 45 minutes and running for an hour uses roughly 6 to 8 kWh, so £1.50 to £2.50 per session at 2026 UK electricity prices.
Do I need planning permission for a garden sauna?
Usually not in England if it meets permitted development rules for outbuildings (height, distance from boundaries, not in front of the house), but listed buildings and conservation areas differ. Check with your local authority.
Is an infrared sauna as good as a real sauna?
It runs at 45 to 60°C rather than 80 to 100°C, so the cardiovascular research on Finnish sauna does not apply directly. It is comfortable and fits indoors; treat it as a different product.
Building the rest of the home gym? Start with the budget guides.
Guide not yet available