Collection: Cold Plunge(4)

A cold plunge is a purpose-built tub for cold water immersion — typically used at 10–15°C for 2–5 minutes at a time. A built-in chiller unit cools and maintains the water temperature automatically, so it's ready to use without ice. Most outdoor cold plunges are made from thermowood and connect to a chiller via a simple hose fitting.

Most people start between 12–15°C and work down over time. Experienced users often go to 8–10°C. There's no single correct temperature — the goal is controlled cold stress, not suffering. The chiller holds whatever temperature you set, so you can adjust as your tolerance builds.

It depends on starting water temperature and ambient air temperature, but most chillers bring a full cold plunge from ambient to target temperature in 4–8 hours. Once at temperature, the chiller maintains it continuously. Pre-cooling overnight is the most practical approach.

Yes — and winter is when the contrast effect is strongest, particularly when paired with a sauna. Most outdoor cold plunge units are built from thermowood rated for outdoor use in all seasons. The chiller works in reverse as a heater in some models, which also extends the useful range.

Entry-level cold plunge barrels with chiller start from around £1,200. Ice bath barrels and cube formats with chiller sit between £1,950–£2,200. Duo models built for two people start from around £3,350. The chiller is the most significant cost component — units without one are cheaper but impractical for regular use.