Hub · Cold plunge

Cold plunges, run through the numbers

Chiller, ice or a converted chest freezer: what each really costs over five years, how much it weighs full, and what it needs from your circuit.

Updated 21 Oct 2026

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5 years

The sticker price is the smallest number. Ice runs, chiller electricity, filters, sanitiser and the floor it sits on decide what a cold plunge really costs. We add it all up.

Before you buy: what to check

The specs that decide whether it fits your space, your circuit and your budget.

  • Weight when fullWater is about 8.3 lb per gallon. Check the floor, deck or balcony rating before you buy.
  • Cooling methodBags of ice, a separate chiller or a built-in unit: each changes running cost and noise.
  • Circuit and outletChillers usually want a dedicated outlet. Check the manual’s electrical spec.
  • Water careFilter, sanitiser and how often the maker says to change the water.
  • Indoor or outdoorOutdoor units face sun, freezing and debris; indoor units face humidity and spills.
  • ReturnsLarge items can carry restocking fees and return freight. Read the policy first.

Analyses on the desk

Each page ships with its sources, a dated price stamp and a changelog.

  • Cold plunge vs chest freezer vs barrel tub: 5-year costIce, chiller and DIY, priced over five years with your inputs.
    In progress
  • Barrel tubs, 300 vs 500 size: who each one is forFit, weight full, chiller options and the fine print.
    In progress
  • Contrast therapy at home: the full setup cost at 3 budgetsSauna + plunge, wiring and space included.
    In progress

How we get to a verdict: primary sources, real running costs, owner complaints and recalls. Brands can’t pay for placement.

How we analyse →