Plunge Pool vs Cold Plunge: What Is the Difference?
Plunge pools and cold plunges look similar but serve very different functions. Plunge pools are small swimming pools; cold plunges are recovery-specific chilled water tanks.
Purpose
Plunge pool: cooling-off, light exercise, social entertaining. Water temperature: 78 to 88 degrees. Cold plunge: muscle recovery, contrast therapy, vagal-nerve protocols. Water temperature: 38 to 55 degrees.
Size
Plunge pool: 6 by 12 feet up to 12 by 20 feet, 3 to 5 feet deep. Cold plunge: 28 by 67 inches up to 36 by 84 inches, 24 to 30 inches deep.
Equipment
Plunge pool: standard pool pump, filter, optional heater. Cold plunge: dedicated chiller, sanitation system (UV, ozone, or filter), insulated cover.
Cost
Plunge pool (gunite): $35,000 to $85,000 turnkey. Cold plunge (off-the-shelf): $6,800 to $28,000. Cold plunge (custom built-in): $18,500 to $95,000.
Verdict
They are not substitutes. Many wellness suites include both: cold plunge for recovery, plunge pool for daily cooling off. If you only build one, decide based on whether your goal is daily recovery (cold plunge) or daily cooling and entertaining (plunge pool).
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