Standalone water chillers tested for cooling power, noise, and efficiency
Penguin Chillers 3/4 HP Cold Therapy Chiller·Penguin Chillers 1/2 HP High Efficiency·
Ice Barrel ChillerHelping 12,000+ professionals choose the right tools
Quick Answer
Made-in-USA standalone water chiller with built-in pump, 7,500 BTU cooling, and 56 dBA quiet operation. The gold standard for DIY cold plunge setups.
Budget-friendly standalone cold plunge chiller with 5,750 BTU cooling. Compact, quiet, and energy efficient for DIY builds.
$3,000
Premium WiFi-controlled water chiller designed to pair with Ice Barrel tubs. 1/2 HP with built-in filtration and app control.
A standalone chiller is the most cost-effective way to build a serious cold plunge system. Pair one with any insulated tub, stock tank, or barrel, and you get consistent sub-40-degree temperatures without ever buying a bag of ice. Modern cold plunge chillers offer digital temperature control, built-in filtration, and low energy consumption.
We tested standalone chillers on cooling speed, temperature accuracy, noise levels, pump reliability, filtration effectiveness, and compatibility with popular tub sizes. If you are building a DIY cold plunge or upgrading an existing setup, these chillers deliver the performance you need.
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DIY cold plunge builders wanting a reliable standalone chiller
| Feature | Penguin Chillers 3/4 HP Cold Therapy Chiller8.6/10 | Penguin Chillers 1/2 HP High Efficiency7.8/10 | Ice Barrel Chiller7.8/10 |
|---|---|---|---|
| Starting Price | $1,950 | $929 | $3,000 |
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| Built-in Pump | |||
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| Check Price at Penguin Chillers | Check Price at Penguin Chillers | Check Price at Ice Barrel |
Pricing: $929
Budget-friendly standalone cold plunge chiller with 5,750 BTU cooling. Compact, quiet, and energy efficient for DIY builds.
Pricing: $3,000
Premium WiFi-controlled water chiller designed to pair with Ice Barrel tubs. 1/2 HP with built-in filtration and app control.
Each chiller is tested with a standard 100-gallon insulated tub in both indoor (68 degrees F ambient) and outdoor (85 degrees F ambient) conditions. We measure time to reach 40 degrees F from 70 degrees F, temperature accuracy at set point, noise at 3 and 6 feet, and monthly energy cost.