The size depends on:

Number of users: Larger units are needed for teams or commercial use.

Space availability: Ensure you have enough room for the chiller and tub.

Frequency of use: High-frequency use may require a more powerful unit.

Some models are designed for outdoor use, but you should:

Ensure the unit is weatherproof or covered.

Protect it from extreme temperatures or direct sunlight.

Check the manufacturer’s guidelines for outdoor compatibility.

Avoid prolonged exposure to cold water.

Monitor your body’s response and exit if you feel dizzy or uncomfortable.

Keep the chiller and electrical components away from water to prevent accidents.

Consult a doctor before use if you have medical conditions like heart problems or Raynaud’s disease.