Cool Zone®



Be cool in your hot tub!


“It's over 100°F outside, and we are staying cool in our Caldera® spa.”

With the CoolZone™ hot tub cooling system, your Caldera spa can both heat and cool the water – something that is not possible in most hot tubs. This easy to use innovation expands your hot tub use, so you and your family can enjoy hot tubbing more, all year long.

Play Video about cool zone

Flexible and Energy-efficient

Similar to the way an air conditioner cools your home, the CoolZone™ system cools spa water to as low as 60 degrees. And when you’re ready to warm things up, the system works with your spa’s heater to efficiently raise the temperature in just a few hours. Depending on factors like ambient air temperature, the CoolZone™ system even has the potential to lower operational costs by reducing the time required to run the standard energyPro® heater that keeps the water hot.*

* CoolZone installation requires a certified HVAC technician. Available only on select models. Please contact your dealer for more information.

Is the CoolZone system right for me?

The CoolZone system from Caldera is a wonderful option for:

Hot tubbers living in hot climates

Families & grandparents with small children

Active adults desiring cold water therapy

Contact us

Get in touch

Our team of home and backyard leisure specialists are here to help you make your house a home. Learn more about our hot tubs, swim spas and saunas today!

Get More Information

Fill out this form to start the quote process – don’t worry if you aren’t sure about everything yet! We will follow up to walk you through any decisions within a few hours of submitting.