Thermal Protocol

Cold Plunges

From $1,150 DIY barrels to chiller-equipped turnkey tubs — the sub-$5,000 market across three price tiers, plus one worth-the-stretch flagship, in our first published guide.

The full cold plunges catalog — with filters by price, indoor/outdoor, capacity, and electrical requirements — is being built. In the meantime, the reviews above and the buyer's guide cover the models worth considering.