Energy Efficient

Pure Performance

Pure Water

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Pure Performance

Energy Efficient

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.

Pure Performance

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.

Pure Water

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.

Performance Features

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Whirlpool Jets

Powerful Massage
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This high-volume jet delivers a powerful massage for your lower back, or a pleasant swirling effect throughout your spa.
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Advent Control Panel

One Touch Controls
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The Advent® control panel gives you command of the spa’s functions at your fingertips. An auxiliary control panel, on Utopia Series spas, lets you operate your spa’s components from a second location within the spa.
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Cooling System

Patented System
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A patented system vents the heat produced by the pump motors out of the equipment area to create cooler operating conditions, prolonging the life of your Caldera spa’s components.
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Diverter Valves

A more Powerful Massage
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For a more powerful massage, simply adjust the diverter valves, directing water flow to the seats in use. Turn the outer ring on any adjustable jet or air valve to alter the flow, or close them off entirely to increase the massage action of jets you’re currently enjoying.
Caldera’s goal has always been to offer you the most comfortable, energy-efficient, high-performance spa on the market so that you can enjoy the full range of wellness benefits that a spa can offer.
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EcoTech® Cabinet

Exclusive EcoTech®
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In the harsh outdoors, all hot tub components must be able to resist moisture and weathering. Our exclusive EcoTech® Cabinet offers the beauty of real wood with the durability and easy maintenance of rigid polymers. EcoTech has natural, embossed wood grains and is available in neutral Coastal Gray, rich Espresso, or natural Redwood.
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Durabond

Durabond Reinforcement
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Given the exposure of the interior spa shell to daily use, a quality construction and composition is critical. Our triple-layer DuraBond reinforcement system strengthens the tough acrylic surface for proven, time-tested performance.
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Caldera Cover

Reduce Energy Use
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Along with full-foam insulation, a Caldera cover provides a tight custom seal to reduce energy use. Made of a durable, marine grade-vinyl, it features child-resistant safety locks and conforms to all applicable ASTM safety standards.
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FiberCor

Insulation, Innovation
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All Caldera Spas feature FiberCor, an innovation that revolutionizes spa insulation. Applied at a 2lb, density, FiberCor is 4-times denser than typical 1/2lb. urethane foam
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