With its exclusive and highly efficient EnergyPro® circulation pump, your Caldera spa is always hot and ready to use while meeting the most stringent energy efficiency standards established for portable spas. The system operates at very low wattage to filter water and actually reduces heater use since 80% of the energy used to operate it is transferred to the water as heat.
Caldera spas are thoughtfully designed to provide years of carefree performance, even with frequent use, for those seeking daily renewal. And you can relax knowing our revolutionary FiberCor™ insulation material helps maintain the water temperature—it’s an energy-efficient innovation available only from Watkins Manufacturing, the makers of Caldera Spas. Finally, to ensure dependability, we use the highest-quality components and durable, reinforced acrylic interior surfaces so we can offer you some of the most comprehensive warranties on the market.
We know you don’t want to handle messy water chemicals so we offer a simple water care system called the FROG® as a standard feature on all Caldera Spas. The system makes it easy for you to manage the infrequent replacement of bromine and mineral cartridges so you can enjoy sparkling clear spa water every time you dip into your Caldera hot tub.