The Aventine® is a two-person hydrotherapy spa from the Vacanza® Series, the value-mid tier hot tub line manufactured by Caldera Spas, a Watkins Wellness brand. Measuring 5'4" square and holding 150 gallons of water, the Aventine is the smallest footprint in the Vacanza family, specially designed for small spaces, and it fits exceptionally well in a corner. Its 14 jets, convertible 115V / 230V electrical, and FreshWater® Salt System Ready plumbing make it the easiest Vacanza model to install while still delivering Caldera's signature Hot Tub Circuit Therapy® in a compact two-seat layout. The Aventine is sold and serviced through Seven Seas Pools & Spas.
2 Adults
5'4" × 5'4" × 29" tall
(162 × 162 × 74 cm)
14 total (8 Euro Directional, 6 AdaptaFlo®)
FreshWater® Salt System Ready
The Aventine fits households where one or two people want a private, low-footprint soak, couples in apartments or condos with a balcony pad, owners of small backyards or paver patios, and if you want a true plug-and-play option on a standard 115V outlet. Its corner-friendly square shape and 500 lb dry weight mean it can sit on a deck, a prepared spa pad, or even an interior room with proper moisture management. With two specialized seats, the UltraMassage® Seat and the LumbarSsage® Seat, both occupants get distinct hydrotherapy rather than sharing a single jet pattern. The Aventine fits if you want salt-water sanitization and Vacanza-tier insulation in the smallest possible spa.
The Aventine gives two people specialized massage seats, salt-system readiness, and convertible power in a compact 5'4" square spa.
Parchment
Ash
Java
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| Spa Specification | Value |
|---|---|
| Seating capacity | 2 adults |
| Length × Width × Height | 5'4" × 5'4" × 29" (162 × 162 × 74 cm) |
| Water capacity | 150 gallons (575 liters) |
| Weight (dry) | 500 lbs (225 kg) |
| Weight (filled) | 2,100 lbs (960 kg) |
The Aventine uses a single ReliaFlo® Dual-Speed 1.5 HP (3.2 BHP) pump plus an EnergyPro® circulation pump that runs continuously for low-noise filtration. The 14 jets split across two configurations.
| Jet Type | Count | Targeted Area |
|---|---|---|
| Euro Directional | 8 | General muscle coverage across both seats |
| AdaptaFlo® | 6 | Adjustable-flow precision jets |
The Aventine ships FreshWater® Salt System Ready, also referred to as IQ Salt System Ready. The optional FreshWater® Salt System uses a disposable titanium cartridge to generate chlorine from salt, the result is water that stays fresh, clear, and natural-feeling without ongoing manual chlorine dosing.
| Water Care Specification | Value |
|---|---|
| Standard system | FreshWater® Salt System Ready |
| Filter | 35 sq. ft. |
| Ozone | Optional ozonator |
| Cover & Accessory Specification | Value |
|---|---|
| Cover | WeatherPro™ 4" tapered, custom-fit, hinge seal |
| Cover colors | Storm, Chestnut, Black |
| Cover lifters | No cover lifter available for this model |
| Steps (optional) | Vacanza® Series Steps or Polymer Steps in Java, Ash, or Parchment |
The Aventine is designed around a compact two-seat Hot Tub Circuit Therapy® loop. A typical soak starts in the UltraMassage® Seat, neck and shoulder jets engage at the top of the back, middle-back jets release tension across the thoracic spine, and a pair of wrist jets work the often-overlooked forearm and carpal-tunnel area that desk work tightens. After 8-10 minutes, the soaker rotates into the LumbarSsage® Seat, where a unique jet configuration drives water pressure into the lumbar region of the lower back, the muscle group most commonly cited in customer reviews of the Vacanza line. The Foot Ridge® stabilizes the body throughout, so jet pressure pushes against muscle rather than sliding the body across the seat.
Because the Aventine carries a single pump, jet pressure is controlled by the dual-speed motor and a manual diverter rather than the multi-pump zoning available on the larger Marino® or Palatino®. If you want simultaneous high-pressure delivery to two seats should compare those models or step up into the Utopia® Series.
Choose the Aventine when you want two dedicated hydrotherapy seats, convertible electrical, and FreshWater® Salt System readiness without moving into a larger backyard footprint.
| Related Spa | Seats | Jets | Key Differentiator |
|---|---|---|---|
| Vanto® | 7 | 35 | Largest Vacanza, no lounger, group-friendly |
| Marino® | 6 | 35 | Lounger plus 5 seats, family-balanced |
| Palatino® | 6 | 45 | Highest jet count in Vacanza |
| Tarino™ | 5 | 23 | Unique double-lounge layout |
| Celio™ | 3 | 18 | Small-group conversation layout |
| Aventine® (this model) | 2 | 14 | Smallest Vacanza, 115V convertible, corner-friendly |
The Vacanza Series sits as the value-mid tier of the Caldera Spas lineup. From most to least premium:
Utopia® Series - premium top tier with EcoTech® Plus cabinet, Atlas® Neck Massage, FreshWater® IQ Salt with smart monitoring, SpaGlo® multi-zone LED, and Advent® LCD Touchscreen.
View Utopia Series Hot Tubs
Paradise® Series - mid tier with FreshWater® Salt System Ready plumbing and EcoTech® cabinet construction.
View Paradise® Series Hot Tubs
Vacanza® Series - value-mid tier where the Aventine lives, with EcoTech® cabinet, Mystique® LED interior lighting, and LCD Main Control Panel.
View Vacanza® Series Hot Tubs
Fantasy Series - entry tier with 115V plug-and-play options, FROG® sanitization, and rotomolded cabinet construction.
View Fantasy Series Hot TubsIf you're cross-shopping Caldera against the Hot Spring brand (also distributed by Watkins Wellness), the Caldera vs Hot Spring comparison covers how the two lines split on jet technology, control systems, and water-care defaults.
The Aventine is easiest to evaluate by sitting in both seats and comparing its compact square footprint against larger Vacanza models like the Celio™, Marino®, and Palatino®.
The Aventine is one of the few Vacanza models with a convertible 115V / 20 amp or 230V / 50 amp electrical configuration, a GFCI power cord is included for plug-and-play 115V installation, and a licensed electrician can wire it to a 230V circuit for faster heat-up and simultaneous heater + jet operation. Site requirements:
Level reinforced surface, deck, or prepared spa pad capable of supporting 2,100 lbs filled
24" minimum service clearance on at least one side for equipment access
Standard delivery to ground-level installations
Seven Seas offers full delivery and installation service including site assessment, electrical coordination if you choose the 230V conversion, and post-fill water balancing.
With the optional FreshWater® Salt System cartridge installed, week-to-week maintenance reduces to monitoring water clarity and replacing the salt cartridge approximately every four months. Filter cleaning runs on a monthly cadence, see the filter care guide for the 35 sq. ft. cartridge in the owners area. The Aventine's 150-gallon volume means a full drain-and-refill is faster than mid-Vacanza models, but it also means water chemistry shifts faster, small spas need slightly more attentive sanitizer monitoring than 400+ gallon tubs.
For broader guidance, the salt-water hot tub care guide in the owners area covers cartridge replacement, ozone interaction, and seasonal draining intervals.
Yes. The Aventine is convertible, it ships with a GFCI power cord ready for a dedicated 115V / 20 amp outlet, or a licensed electrician can hardwire it to a 230V / 50 amp circuit for stronger heater performance. Most two-person households stay on 115V.
On 115V, the heater and high-speed jets share electrical capacity, so jet operation pauses heating while the pump is on high. On 230V, both run simultaneously and the spa recovers temperature faster after a long soak. If you live in a cold climate or want to run jets continuously, the 230V conversion is worth the electrician visit.
Yes, its 2,100 lb filled weight is light enough for many ground-floor interior rooms, and the convertible electrical works on either 115V or 230V. Indoor installs require humidity ventilation and a moisture-resistant floor structure. See the indoor installation guide for full requirements.
The Celio™ adds a third seat, an AdaptaSsage® jet, and grows to 215 gallons in a 7' × 5'5" footprint. Choose Aventine if maximum compactness or 115V plug-and-play matter most. Choose Celio if a third occupant or a true conversation seating arrangement is the priority.
No, Caldera does not offer a cover lifter for the Aventine because of its compact 5'4" square footprint. The included WeatherPro™ 4" tapered cover lifts off manually.
"Salt System Ready" means the spa's plumbing and control panel are pre-configured to accept the optional FreshWater® Salt System cartridge. The cartridge is purchased separately and uses a disposable titanium element to generate chlorine from dissolved salt, replacing weekly manual chlorine dosing.
500 lbs dry. With proper rigging, two installers can typically place the Aventine on most flat-access patios. Tight-access deliveries, second-story decks, or staircase routes require a Seven Seas site assessment.
Caldera does not publish a single warranty page on the product page itself. Seven Seas walks every Aventine buyer through the current Caldera warranty document at the time of sale. Ask for the latest warranty PDF when you visit a showroom.
The Aventine is part of the lineup carried by Seven Seas Pools & Spas. Call ahead or stop by your local showroom to confirm current showroom availability. Visiting a showroom is the fastest way to confirm that a 5'4" square spa actually fits the space you have in mind, and to compare seat ergonomics against the larger Vacanza models. Call or visit your local Seven Seas Pools & Spas location to schedule a private wet-test soak appointment with the models currently on the floor.
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