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CALDERA® SPAS

Fantasy™ Spas

Plug-and-play hot tubs that go where you want them. Fantasy™ spas run on a standard 115V outlet on its own circuit, with no 230V hardwiring. All you need is a level pad and a place to relax.

Get Pricing Shop by Size

Shop by Size

Five models, from the compact two-seat Aspire® to the 40-jet Bloom®. Every one runs on a standard 115V outlet on its own circuit.

Find 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.

Read the Full Guide

How many people will use it?

Size to a normal week, not a holiday party. 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 sit in 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 run on a 115V outlet on its own circuit, with no 230V hardwiring: 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 the Northwest 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
Caldera Fantasy Bloom spa installed on a patio beside the house

    What our customers say

    Five-star Google reviews from Northwest Washington customers.

    Read more reviews

    “Debbie at Hot Tubs Northwest made the entire experience seamless from start to finish. She took the time to understand what was best for me and my family and helped me stay within a budget that made sense no pressure, no unnecessary upselling.…”

    Josh G. Ferndale Showroom · 3 months ago

    “I didn’t know we had a hot tub store here in Lake Stevens, but I am sure happy I found this place. They have all the chemicals I need for my tub and Mattheu’s service was awesome.”

    Grace Lake Stevens Showroom · 2 weeks ago

    “Absolutely fantastic service from the team at the Lake Stevens location. Jared especially was incredibly kind, super knowledgeable, and truly cares about the customer experience. Prices are fair, the team is reliable, and I’ll be coming back for all my hot tub needs. Highly recommend!”

    Ali F. Lake Stevens Showroom · a month ago

    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 run on a standard 115V outlet on its own circuit. 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 size to a normal week, not the biggest party of the year.

    Four friends laughing in a Caldera Fantasy Invite spa

    Try Before You Buy

    Heated and ready year-round

    The best way to know if a hot tub fits you is to get in one. Come sit in a few at your own pace and find the right fit before you buy.

    Book a Test Soak

    Ready to get started?

    Get real numbers on the models you’re weighing, or come sit in a few at one of our three showrooms. It’s the fastest way to know.

    Get Pricing Schedule a Test Soak