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Haven & Plunge

Head to head

The Plunge: Original Cold Plunge Tub vs Renu Therapy Cold Stoic 2.0

Both models appear in our Best Cold Plunges of 2026 comparison. This page sets their published specs side by side.

We have not tested these products hands-on. Everything here comes from manufacturer specifications and merchant listings, last checked Oct 11, 2026. Price buttons are affiliate links, and we may earn a commission at no extra cost to you.Affiliate disclosure

Key differences

Side by side

"Not published" means our data has no figure from the maker or merchant. Warranty entries are what the listing said; check the maker's terms before you buy.

Price buttons are affiliate links. We may earn a commission at no extra cost to you.Affiliate disclosure

PlungeThe Plunge: Original Cold Plunge TubRenu TherapyRenu Therapy Cold Stoic 2.0
Price$8,490Checked Oct 11, 2026$9,499Checked Oct 11, 2026
Who it fits1 person (fits users up to 6'8")1 person
Dimensions66-5/8"L x 31-1/2"W x 26"H; 105-gallon capacity70"L x 33"W x 35"H exterior; holds up to 134 gallons
PowerDedicated 120V/15A circuit for the chiller120V/15A circuit for the 0.25 HP chiller
PlacementIndoor or outdoorIndoor or outdoor
Installation needsIndoor or outdoor; requires a dedicated 120V/15A circuit near the unitIndoor or outdoor; standard 120V/15A outlet required; confirm floor loading for indoor installs given ~1,155 lb filled weight
Warranty (as listed)1-year limited warranty5-year limited warranty (residential use only)
ChillerCools to 37°F, 8-10°F per hour0.25 HP, 450W, cools to 39°F
Capacity105 gallons; fits users up to 6'8"~95 gallons filled, up to 134 gallons max
ShellAcrylic/fiberglassNot published
FiltrationOzone plus chlorine/non-chlorine filtration, 6-filter starter kit includedNot published
InsulationNot published4" foam insulation
Noise LevelNot published58 dB at approximately 3 feet
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What each one offers

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Best Overall

The Plunge: Original Cold Plunge Tub

A 105-gallon integrated-chiller cold plunge that cools to 37°F, with app-based temperature control and ozone/chlorine filtration.

Why we labeled it: The largest manufacturer-reported review base we found (872 reviews, 4.8/5) and a mid-range price among the four.

May suit: Frequent, multi-weekly cold plunge users; Buyers wanting the most-reviewed integrated-chiller system researched

In its favor

  • Highest manufacturer-reported review count among the cold plunges researched for this site (872 reviews, 4.8/5)
  • App-controlled temperature
  • Quieter Gen 2 chiller per manufacturer's own comparison

Against it

  • Only a 1-year warranty at this price point
  • Requires a dedicated 120V/15A circuit
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Best Premium

Renu Therapy Cold Stoic 2.0

A quiet, 5-year-warrantied cold plunge that cools to 39°F, holding up to 134 gallons with 4-inch foam insulation.

Why we labeled it: A 5-year limited warranty, five times The Plunge's 1-year term, and a published 58 dB noise rating.

May suit: Buyers prioritizing warranty length over upfront price; Households wanting quieter chiller operation

In its favor

  • 5-year limited warranty — longer than most competitors researched
  • Quieter operation (58 dB) than some integrated-chiller competitors
  • High manufacturer-reported rating (4.9/5 from 149 reviews on the official site)

Against it

  • Higher price than entry-level integrated-chiller competitors
  • Warranty excludes commercial use
  • Heavy when filled (~1,155 lbs) — floor loading matters for indoor installs
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