Nordic Wave
Viking Premier Cold Plunge
4.9(492)
An indoor/outdoor-rated cold plunge that cools to 35°F and heats to 104°F, with UV and multi-stage filtration and app control.
$5,990$6,990
Check PriceRenu Therapy
Cold Stoic 2.0
4.9(149)
A quiet, 5-year-warrantied cold plunge that cools to 39°F, holding up to 134 gallons with 4-inch foam insulation.
- Capacity
- 1 person
- Installation
- indoor / outdoor
- Dimensions
- 70"L x 33"W x 35"H exterior; holds up to 134 gallons
- Power
- 120V/15A circuit for the 0.25 HP chiller
$8,499$9,499
Check Latest PriceWe may earn a commission if you purchase through this link, at no extra cost to you. Price and availability are set by Renu Therapy and subject to change. Information last verified September 8, 2026.
Cold Stoic 2.0
$8,499
Who It's For
- Buyers prioritizing warranty length over upfront price
- Households wanting quieter chiller operation
Key Specifications
- Chiller
- 0.25 HP, 450W, cools to 39°F
- Capacity
- ~95 gallons filled, up to 134 gallons max
- Insulation
- 4" foam insulation
- Noise Level
- 58 dB at approximately 3 feet
Key Features
- 0.25 HP chiller cools to 39°F
- 4" foam insulation for efficiency
- External and internal filtration with ozone
- Wood or composite deck options
Installation
Indoor or outdoor; standard 120V/15A outlet required; confirm floor loading for indoor installs given ~1,155 lb filled weight
Warranty
5-year limited warranty (residential use only)
See how the Cold Stoic 2.0 stacks up against alternatives in our Best Cold Plunges of 2026 comparison.
Pros
- + 5-year limited warranty — longer than most competitors researched
- + Quieter operation (58 dB) than some integrated-chiller competitors
- + High verified rating (4.9/5 from 149 reviews on the official site)
Cons
- − Higher price than entry-level integrated-chiller competitors
- − Warranty excludes commercial use
- − Heavy when filled (~1,155 lbs) — floor loading matters for indoor installs
Alternatives to Consider
Best OverallPlunge
The Plunge: Original Cold Plunge Tub
4.8(872)
A 105-gallon integrated-chiller cold plunge that cools to 37°F, with app-based temperature control and ozone/chlorine filtration.
$6,790$8,490
Check PriceFrequently Asked Questions
How cold should a cold plunge be?
Most home cold plunge systems are used well below room temperature; check your unit's manual for its supported range and always ease into cold exposure.
Do I need a chiller, or is ice enough?
Ice-based tubs are more affordable and simpler but require manual ice runs; chiller-equipped systems maintain temperature automatically with less day-to-day effort.
Can a cold plunge go outdoors in winter?
Many outdoor-rated units can, but check the manufacturer's freeze-protection guidance for your climate before leaving a plunge outside year-round.