Cold plunge basics: tubs, chillers and what to check
General information only, not medical advice; see the disclaimer below. Specs are from manufacturer pages, with check dates. Affiliate links are coming soon.
Common setups
| Setup | What it is | Things to check |
|---|---|---|
| Inflatable or pop-up tub + ice | Portable tub, cooled with ice | Ice cost and effort; insulation lid; drainage |
| Tub + chiller unit | An electric chiller holds a set water temperature | Lowest listed temperature, power draw, plug and voltage, noise, filtration |
| All-in-one plunge | Insulated tub with built-in chiller and filter | Footprint and weight when full, indoor or outdoor rating, warranty |
Practical points
- Water is heavy (about 1 kg per litre), so check floor loading for indoor use.
- Filtration, sanitising and lids matter for keeping water clean.
- An outdoor chiller needs a weather rating and suitable electrical protection (e.g. an RCD/GFCI).
Some people use cold water immersion as part of their routine. Cold exposure carries risks, so see the disclaimer below and get professional advice first.
Brand comparisons with maker specs and check dates are coming soon.