Cold plunge vs ice bath
An ice bath is a tub of water you cool with ice each time. A cold plunge, as most brands use the term, adds a chiller that keeps the water at a set temperature. The trade is upfront price against daily effort.
| Cold plunge with chiller | Ice bath (no chiller) | |
|---|---|---|
| How it gets cold | A chiller cools and circulates the water | You add ice before each session |
| Temperature | Rated 28–39°F in our index, held automatically | Depends on how much ice you add and how long it lasts |
| Price in our index | $899 to $15,690 (17 models) | $1,750 for the Ice Barrel 500, plus ice |
| Ongoing cost | Electricity for the chiller, plus filters and sanitizer | Ice for every session |
| Power | 120V outlet; many brands want a dedicated circuit | None |
| Water care | Filtration, and often ozone or UV, keeps water in use for longer | Usually drained and refilled more often |
Temperature
Chiller systems in our index are rated to hold anywhere from 28°F to 39°F, and you set the target. Without a chiller, the water starts at tap or room temperature and warms back up after the ice melts. Ice Barrel, which sells an insulated tub without a chiller, says its water often holds around 59°F.
Cost
An insulated tub costs less upfront: the Ice Barrel Ice Barrel 500 lists at $1,750. The cheapest chiller system in our index lists at $899, though budget systems use small chillers, so check the chiller comparison. An ice bath's cost keeps going with every bag of ice; a chiller's ongoing cost is electricity. Estimate yours with the cold plunge cost calculator.
Which to choose
- Choose an ice bath if you plunge a few times a month, want the lowest upfront cost, or don't have a suitable outlet.
- Choose a cold plunge with a chiller if you plunge often, want the same temperature every time, or don't want to buy and haul ice.
Already leaning toward a chiller? See the best cold plunge picks or compare every model in the cold plunge finder.