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Cold Plunge Chillers Explained: Do You Need One? (Penguin Chillers, Cryospring and More)
September 27, 2026 2 min read
Short answer: A chiller pumps your tub water through a refrigeration unit and returns it cold, holding the temperature you set and often filtering the water. You do not need one to start, but it removes the ice cost and gives repeatable temperatures. Match the chiller to your tub's volume and your climate, and check power, filtration and warranty.
Last reviewed: September 2026. Prices as of September 2026. Details come from listings. Educational only, not medical advice. See our disclaimer.
How a chiller works
- A pump circulates tub water through the unit.
- A refrigeration circuit removes heat from the water.
- Filtration, and on some units UV or ozone, keeps the water clean.
- A controller holds the temperature you set. Some also heat.
Chillers we carry
| Chiller | Details | Price |
|---|---|---|
| Penguin Chillers Cold Therapy Chiller | Standalone chiller | $2,294 |
| Dynamic Cold Therapy Cold/Heat Chiller System | Wi-Fi temperature control | $2,499 |
| Coldture Ice Bath Water Chiller Pro | Up to 100 gallons, down to 37°F, UV filtration, self-priming pump, digital panel | $2,910 |
| Dynamic Cold Therapy 0.6 HP (Cold/Heat) | Compact, Wi-Fi enabled | $2,999 |
| Dynamic Cold Therapy Cold/Heat System, Premier Edition | High-performance chiller | $3,099 |
| Dynamic Cold Therapy 0.8 HP (Cold/Heat) | Mid-size, Wi-Fi enabled | $3,499 |
| Coldture Cold Plunge Tub Water Chiller | Chiller for cold plunge tubs | $3,824 |
| Dynamic Cold Therapy 1.0 HP (Cold/Heat) | High-performance, Wi-Fi, for large tubs | $3,999 |
| Dundalk Nordic Chiller 2.0 | Chiller for cold plunge tubs | $4,114 |
| Dundalk Cold Plunge Tub Chiller, 110 V | Plug-in chiller | $4,946 |
Tubs sold with a chiller
- Penguin Chillers Tru Grit Inflatable Tub + Chiller ($2,600), Chiller and Tub ($3,000) and Chiller and Insulated Tub ($4,400)
- Dreampod Ice Bath Flex with Chiller ($3,700), Ice Bath with Chiller ($6,200, ¾ HP) and Cold Plunge Barrel with Chiller ($6,600)
- Coldture The Barrel + Chiller Pro Bundle ($3,100, cools to 37°F and heats to 105°F)
- Cryospring Portable Ice Bath Chiller ($4,290)
- Sun Home Cold Plunge with Chiller ($4,599)
- Solbasium Polar Elite One ($8,990, 1 HP chiller cools up to 5°F per hour to 37°F, ozone, app control)
- Cryo Innovations XR Cryo Plunge ($5,500)
How to size and choose
- Volume. Know your tub's gallons. The Coldture Chiller Pro is rated up to 100 gallons.
- Ambient temperature. Hot climates and sunny placements make the chiller work harder.
- Cooling speed. Ask how fast it cools. The Polar Elite One lists up to 5°F per hour.
- Filtration. Look for filters, UV or ozone.
- Heating. Cold/Heat models add warm sessions.
- Power. Check the voltage and outlet, and use ground-fault protection.
- Support. Ask about warranty and service.
Frequently asked questions
Do I need a chiller for a cold plunge?
No, ice works. A chiller holds a set temperature, filters the water and saves the cost of ice.
Can I add a chiller to my own tub?
Yes. Standalone chillers from Coldture, Dynamic Cold Therapy, Dundalk and Penguin Chillers connect to a compatible tub. Match the chiller's rated capacity to your tub's volume.
See every product in Every Cold Plunge and Cryotherapy Product We Carry, browse Penguin Chillers and Cryospring, or ask our team.