5
Seats
37
Jets
380gal
Water
240V
Voltage
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Aventine®
5 Seats · 37 Jets · 240V
FIVE-PERSON. SIGNATURE CALDERA.
The Aventine's five well-designed seats each deliver a distinct hydrotherapy experience. 37 jets targeting the back, neck, shoulders, calves, and feet for a full-body massage.
- 5 seats, 37 jets
- Five distinct therapy zones
- FreshWater® Salt System optional
- IQ 2020® smart control
5
People
37
Jets
8′4″ × 8′4″ × 36″
Dimensions
240V
Voltage
Targeted Soaking Circuits
Caldera® Hot Tub Circuit Therapy®
Explore the targeted massage stations on the Aventine. Move through the circuit for a complete full-body recovery.
AdaptaSsage® Seat
8 JetsProvides a rotating stream that kneads wide muscle groups.
Therapeutic Focus
Deltoids and upper back/scapula groups (targets posture-related stress)
Circuit Level
Station 1 of 3
Operation Cost & Water Logic
Alaska Monthly Energy Cost Estimator
Estimated electrical costs to run your Aventine hot tub in local winter/summer conditions.
Utility District
Chugach Electric
Local Tariff
$0.22 / kWh
Seasonal Temp
17.0°F avg
Soaking Season
Winter requires more power to maintain 102°F.
Spa Cover Status
Waterlogged covers lose up to 35% more heat.
Estimated Monthly Cost (Anchorage)
$17.36
Based on 79 kWh consumed per month
✔ FiberCor® Full-Foam: High-density insulation keeps heat in the water.
✔ SmartJet® Heat Rec: Pump motor heat is recycled back into the water cabin.
GreenSky® Monthly Payment Estimator
Find the perfect finance plan for your budget. Estimated pricing for Aventine (Approx. $15,500).
81062470 on checkout. Applications are approved instantly online. Rates and approvals subject to credit scoring.Apply for GreenSky® Financing
Take advantage of Plan 2832 to finance your hot tub for only $231.41 per month. Click below to apply safely on the GreenSky portal.
FreshWater® Salt vs. Chlorine Cost & Maintenance Comparison
See the direct financial and time savings of our automated salt water sanitizing system over time.
| Metric | Standard Chlorine | FreshWater® Salt |
|---|---|---|
| Beds / Drains Required | 12 refills | 3 refills |
| Chemical Costs | $780 | $885 |
| Heating Energy to Refill | $317 | $79 |
| Estimated Maintenance Time | 78 hours (Weekly dosing) | 6 hours (Auto-cartridge) |
Your Wellness Savings
$133 Saved
In heating energy and chemical costs over 3 years
By draining only once per year instead of every 3 months, you conserve thousands of gallons of water and save significant energy costs required to heat incoming 40°F well/tap water in Alaska.
Accessories & Industry-Leading Warranty
Caldera® Comfort Guard® Warranty
Every model is backed by a local authorized dealership warranty from The Waterworks.
Structural Shell Integrity
5 YearsWarranty protecting against water loss due to frame structural defects.
Acrylic Shell Surface
5 YearsProtects against cracking, blistering, peeling, or delamination of acrylic.
Equipment & Plumbing Components
3 YearsCovers replacement parts and local dealer labor for pumps, heaters, and controls.
EcoTech® Cabinet Integrity
3 YearsProtects cabinet styling from cracking, splintering, or color fading.
No-Fault® Heater Element
3 YearsPatented No-Fault® heating element replacement guarantee.
Showroom & Warehouse Inventory
Order Now (Custom Lead Time Applies)
We stock parts, accessories, and replacement filters locally in Anchorage, ensuring you never have to wait on mainland shipping times during critical winter periods.
Compatible Cover Lifters
Cover lifters allow you to open and close your hot tub cover in seconds, preventing tears and saving your back. Recommended for all Alaska winter soaking.
Caldera® Spas Collection Tiers
| Feature | Utopia® Series | Paradise® Series | Vacanza® Series |
|---|---|---|---|
| Cabinet & Styling | Avante™ All-Weather Cabinet / ABS Base Pan | EcoTech™ Cabinet / ABS Base Pan | EcoTech™ Cabinet / Standard Base |
| Water Sanitation | Monarch® CD Ozone & FreshWater® Salt Ready | FreshWater® Salt Ready (75 sq.ft.) | Ozone Compatible (50 sq.ft. bypass) |
| Therapy Systems | Atlas® Neck Massage, Euro Directions, VersaSsage | Paradise Jet System, VersaSsage | Vacanza Series Classic Directional Jets |
| Warranty Protection | 10-Yr Structure, 7-Yr Shell, 5-Yr Plumbing/Equip | 5-Yr Structure, 5-Yr Shell, 3-Yr Plumbing/Equip | 5-Yr Structure, 5-Yr Shell, 2-Yr Plumbing/Equip |
Features
What makes the Aventine® exceptional.
FreshWater® Salt System
Optional salt-based water care keeping water clean and natural-feeling for up to a full year.
MicroClean® Ultra Filtration
Advanced three-stage filtration system removes fine particles and keeps water crystal clear.
EverWood® Exterior
High-performance synthetic cabinet resists UV and moisture for decades of outdoor Alaska use.
IQ 2020® Control System
Wi-Fi enabled smart control with in-app monitoring and diagnostics from your smartphone.
FiberCor® Insulation
High-density full-foam insulation for maximum heat retention in cold climates.
Targeted Therapy Seating
Each seat is designed with specific jet configurations targeting different muscle groups.
Customize
Choose your colors.
Select from 4 cabinet colors and 3 shell options to match your backyard aesthetic.
Cabinet Colors
Shell Colors
Alaska's Dealer Since 1976
Why buy your Aventine® from us?
We're the only authorized Caldera® Spas dealer in Alaska — and we've been doing this since 1976. That's 50 years of local expertise, Alaska-specific installations, and in-house service you can count on.
- 50 years as Alaska's wellness dealer (1976–2026)
- Authorized Caldera® Spas dealer — full warranty
- Two showrooms: Anchorage & Eagle River
- In-house technicians for delivery, install & service
- Wet-test appointments available by request
- Alaska-specific delivery: remote sites, crane lifts, cabins
- Financing available — OAC through HFS Financial
- Parts stocked locally — no waiting on mainland shipping
Also in Utopia® Series
