CALDERA® SPAS
Fantasy™ Spas
Plug-and-play hot tubs that fit any home. Fantasy™ spas come with a GFCI power cord that plugs into a standard 115V outlet, with no 230V hardwiring needed. All you need is a level pad and a place to relax.
Shop by Size
Five models, from the two-seat Aspire® to the five-seat Bloom®. Filter by size to find the hot tub that fits your space.
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What Makes Fantasy Spas Different?
Fantasy is Caldera’s budget-friendly series. Every model has a one-piece rotomolded shell, full-foam insulation with 11 to 40 jets, and comes ready for FROG® cartridges for simple water care.
Simply plug it in
Every Fantasy™ model runs on a standard 115V outlet, shipping with a 1,000 W heater. Convert to 230V later and the heater steps up to 4,000 W for faster heat recovery between soaks. All it needs is a 115V outlet for its GFCI power cord, with no 230V hardwiring needed.
Move it when life changes
Lightweight construction and a plug-in cord make these the practical choice for a first home or a patio you may not keep forever.
FROG® water care ready
Every model is FROG® Sanitizing System ready: a simple cartridge routine that keeps water clean with less hands-on chemistry. Water care, made simple covers the routine.
Explore the Fantasy™ Series
Prices vary by model and options. Ask for pricing on the Fantasy spa that suits your needs.
Get PricingFind the Right Hot Tub
Most people only buy a hot tub once, so it’s normal not to know where to start. These six questions cover what actually matters. Answer them and you’ll know what to look for.
How many people will use it?
Choose based on a normal week. This one answer narrows the field more than any other.
What do you want it to help with?
Back pain, arthritis, stress relief, better sleep. Each one has a straight, sourced answer in Hydrotherapy 101.
Lounge seat, or open seating?
A lounge lets one person recline full-length. Open seating fits more people. Neither is better, and it’s the main reason to try a few spas before choosing.
Which features matter most?
Massage systems, water care, lighting, audio, smart controls. Don’t get hung up on jet count, though; where the jets sit and how they’re designed matters far more than how many there are.
How much upkeep do you want?
Salt systems make softer-feeling water with less day-to-day dosing. Fantasy keeps it even simpler with the FROG® cartridge system, a low-effort routine that’s a natural fit for a plug-and-play spa you fill, plug in and enjoy.
What’s your timeframe?
Ready for numbers? Get pricing on the models you’re weighing. Still researching? Take the full guide with you. Either answer is a good answer.
Can You Plug a Hot Tub Into a Regular Outlet?
Yes. Plug-and-play spas come with a GFCI power cord that plugs into a 115V outlet, with no 230V hardwiring needed: fill it, plug it in and enjoy. That’s the Freeflow® collection from Hot Spring and the Fantasy™ series from Caldera, and it’s the easiest way to get into a quality spa.
The trade-off is that the jets and heater share the circuit, so on a cold night with the jets wide open the water can cool a touch. Full-size spas run on a dedicated 230V circuit and hold full heat with everything running. In Tennessee you’ll soak year-round, so if long winter soaks with strong jets are the goal, a 230V model is worth the electrical work.
110V vs. 240V, Explained
What our customers say
Five-star Google reviews from Tennessee customers.
“Kevin at Hot Tubs of TN made our Caldera hot tub purchase easy and enjoyable from start to finish.”
“No pressure at all, just honest advice.”
“No pressure, just information so we could make the right choice for us.”
Frequently Asked Questions
Quick answers to the hot tub questions we hear most. The Learning Center covers each one in depth.
How much does a hot tub cost?
Published price ranges run by tier, and our cost guide walks them with real numbers. We don’t price a specific model sight-unseen because your real cost depends on the model, the features you choose, and what your site needs. Get pricing and we’ll quote your exact setup.
Will it cost a fortune to heat in winter?
Cold climates cost more, but full-foam insulation, an insulated base pan, recycled heat, and a tight cover keep it efficient. The cover is the biggest daily factor.
Can I plug a hot tub into a regular outlet?
Yes. Freeflow® and Fantasy™ plug-and-play spas come with a GFCI power cord that plugs into a standard 115V outlet. Full-size spas run on a dedicated 230V circuit installed by a licensed electrician. Our 110V vs. 240V guide walks the trade-offs.
What size hot tub do I need?
2 to 3 seats fits couples and small spaces, 4 to 5 fits most families, and 6 to 8 is built for entertaining. Bigger uses more energy and chemicals, so choose based on a normal week.
Try Before You Buy
Heated and ready year-round
The best way to know if a hot tub fits you is to experience it in person. We keep them heated and ready year-round so you can try before you buy.
Book a Test Soak
