See it at Plunge Chill: Tub with Chiller
Plunge Chill's own page for the Tub with Chiller. Not a paid link.
Tub with Chiller vs Cold Stoic 3.0
Plunge Chill Tub with Chiller and Renu Therapy Cold Stoic 3.0, compared on the figures their makers publish. The makers of both cold plunges with a chiller state water capacities within 30% of each other.
The makers' figures side by side
| Specification | Plunge Chill Tub with Chiller | Renu Therapy Cold Stoic 3.0 |
|---|---|---|
| Indoor or outdoor | indoor or outdoor | — |
| Outside dimensions | 31.5″ diameter × 29.5″ height | Body: 70” L x 33” W* x 35” H |
| Inside dimensions | — | Tank: 40” L x 25” W x 31” D |
| Electrical supply | Just fill with water, connect the chiller, and plug it in. | 120V / 15A Dedicated Circuit Recommended; GFCI Power Plug with 12 Foot Power Cord |
| Weight | — | Product Weight (Dry): 365 lbs |
| Material | High-strength, UV-resistant nylon; Dual-layer thermal insulation | — |
| Water capacity | 92 gallons | 95 US Gallons |
| Chiller | Compressor : 1/3 HP (600W) | Integrated Wifi-Controlled Chiller & Heater with Advanced Filtration and Ozone Purification System; can cool down to 37°F (2.7 °C) or heat up to 104°F (40 °C) |
| Lowest temperature the maker states | 39°F | 37°F (2.7 °C) |
| Filtration and sanitation | — | Advanced Dual-Stage Filtration System; Advanced Filtration and Ozone Purification System |
| Kit includes | 1 x Chiller Unit; 1x Lid | Included Basic Tub Lid |
| Warranty | — | 5-Year Limited Warranty |
| Price on the maker's site | $569 (sale price on plungechill.com, 29 Sep 2026) | $11,399 (on Renu Therapy's own site, 29 Sep 2026; the lowest-priced option) |
Each figure is the maker's own, as cited row by row on the Tub with Chiller and Cold Stoic 3.0 pages and listed in the sources below. A dash means the figure is not on the maker pages we cite. Figures marked "about" are Saunakivi's unit conversions of the maker's figure.
Where to buy
See it at Renu Therapy: Cold Stoic 3.0
Renu Therapy's own page for the Cold Stoic 3.0. Not a paid link.
Where the published figures differ
- Outside dimensions: Tub with Chiller: 31.5″ diameter × 29.5″ height. Cold Stoic 3.0: Body: 70” L x 33” W* x 35” H.
- Electrical supply: Tub with Chiller: Just fill with water, connect the chiller, and plug it in. Cold Stoic 3.0: 120V / 15A Dedicated Circuit Recommended; GFCI Power Plug with 12 Foot Power Cord.
- Water capacity: Tub with Chiller: 92 gallons. Cold Stoic 3.0: 95 US Gallons.
- Chiller: Tub with Chiller: Compressor : 1/3 HP (600W). Cold Stoic 3.0: Integrated Wifi-Controlled Chiller & Heater with Advanced Filtration and Ozone Purification System; can cool down to 37°F (2.7 °C) or heat up to 104°F (40 °C).
- Lowest temperature the maker states: Tub with Chiller: 39°F. Cold Stoic 3.0: 37°F (2.7 °C).
- Kit includes: Tub with Chiller: 1 x Chiller Unit; 1x Lid. Cold Stoic 3.0: Included Basic Tub Lid.
- Price on the maker's site: Tub with Chiller: $569 (sale price on plungechill.com, 29 Sep 2026). Cold Stoic 3.0: $11,399 (on Renu Therapy's own site, 29 Sep 2026; the lowest-priced option).
Figures we cite for only one of the two: indoor or outdoor (only Plunge Chill's cited pages give it); inside dimensions (only Renu Therapy's cited pages give it); weight (only Renu Therapy's cited pages give it); material (only Plunge Chill's cited pages give it); filtration and sanitation (only Renu Therapy's cited pages give it); warranty (only Renu Therapy's cited pages give it). Ask the other maker before treating the two as equal on those points.
Read each one in full
Plunge Chill Tub with Chiller
Plunge Chill · cold plunge with a chiller · 92 gallons · for indoor or outdoor use
Renu Therapy Cold Stoic 3.0
Renu Therapy · cold plunge with a chiller · 95 gallons · 120 V supply
Sources
- Tub with Chiller - Plunge Chill — Plunge Chill
- Cold Stoic 3.0 - Renu Therapy — Renu Therapy