Wellis vs Caldera hot tubs

Best known for: prices posted online (Wellis) and Atlas neck and Euphoria leg jets (Caldera). Wellis lists 31 hot tubs for 3 to 9 people, Caldera 23 hot tubs for 2 to 8 people. Published prices start at $10,499 for Wellis and $5,499 for Caldera.

Updated October 2026By the HotTubFinder research desk

Wellis

Shown: Atlas Life Deluxe

Hungarian-built tubs from what the maker calls Europe's largest spa factory, sold on low running costs, a heat pump tucked into the step, a patented electronic diverter and list prices posted right on the website.

From $10,499

Get the price range

Caldera

Shown: Florence

Every seat is designed as a massage station, the top Utopia line comes with salt water and hourly water testing, and you get Watkins engineering for less than a Hot Spring.

From $5,499

Get the price range

How they differ

WellisCaldera

Price$10,499 to $29,499 Maker's list price (MSRP)$5,499 to $29,499 Maker's list price (MSRP)

Lineup31 hot tubs in 2 series23 hot tubs in 4 series

Seats3 to 92 to 8

With a lounger20 of 31 models15 of 23 models

Plugs into a regular outlet3 models8 models

Known for

Prices posted online
Built in Europe, in Hungary
Record-low energy use claims

Atlas neck and Euphoria leg jets
Insulation you can pull out
Every seat a massage station

Build checks

No Self-supporting shell
Partly Clamped plumbing
Yes Manifold-fed jets
Partly Standard parts

Partly Self-supporting shell
Partly Clamped plumbing
Not published Manifold-fed jets
Partly Standard parts

Shell warrantyUp to 7 yearsUp to 10 years

Owners like

Quick parts and support replies
Jets, looks and extras

Comfortable seating
Insulation easy to service

Owners complain about

Slow warranty follow-through
Control panel and board failures

No-heat from circulation faults
Salt cartridges wearing out fast

Built inÓzd, HungaryVista, California +1 more

Which lines compete? Tier by tier.

Each maker sorts its own series from entry to flagship; we group them the same way so you can price like against like.

WellisCaldera

ValueNo Wellis line at this tier

Fantasy Series5 models · 2–5 seats · from $5,499

Mid-range

CityLife18 models · 3–7 seats · from $10,499

Vacanza Series6 models · 2–7 seats · from $9,999

PremiumNo Wellis line at this tier

Paradise Series6 models · 3–7 seats · from $13,999

Luxury

PeakLife13 models · 3–9 seats · from $14,699

Utopia Series6 models · 3–8 seats · from $18,499

Which suits whom?

Wellis, if you want

Prices posted online
Room for 9

Caldera, if you want

A lower starting price ($5,499 against $10,499)
Atlas neck and Euphoria leg jets
A tub that plugs into a regular outlet (8 models)

Fit decides more than any figure here. Sit in both in the seat you would use most (dry is fine), feel the jets on a running display tub with the back of your hand, and read both warranty cards before you sign.

What’s a good deal on either?

Pick a brand. We send you the price range, then connect you with one dealer near you for it.

Wellis: get the price range Caldera: get the price range

The details

Keeping it hot: standby power and cost2

Standby is what a tub draws to hold its heat with the cover on and nobody in it. California tests it for every spa sold in the state. At the US average 18.19¢ per kWh (January to July 2026), the middle Wellis model costs about $31 a month to keep hot and the middle Caldera about $26 a month. In watts: 231 W (3 filings) and 199.5 W (18). Your bill also depends on your climate, how hot you keep it and how often the cover is off.

Median standby watts by seat count
Seats	Wellis	Caldera
6	217 W	198 W
7	234 W	214 W

Complaint records2

Wellis. Better Business Bureau grade A, 55 complaints in three years. No U.S. safety recall found.

Caldera. Better Business Bureau grade C-, 18 complaints in three years. ConsumerAffairs 1.3 of 5 from 50 reviews. No U.S. safety recall found.

Complaint counts grow with the number of tubs a company sells; how it answers them tells you more than the count.

Who owns them2

Wellis is privately held. Caldera belongs to Masco Corporation. Each company’s history: Wellis and Caldera.

What to ask in the showroom1

Manifold-fed jets: Caldera doesn't publish it. Ask: “Does each jet here get its own hose from a manifold, or are they chained?”

Every figure side by side30

Measure	Wellis	Caldera
Lineup
Hot tub models	31	23
Seats	3 to 9	2 to 8
120V plug-in models	3 models	8 models
Price	$10,499 to $29,499Maker's list prices, Oct 2026	$5,499 to $29,499Maker's list prices, Oct 2026
Build checks
Checks cleared	2 of 8	1 of 8
Self-supporting shell	NoA polymer frame and ABS base carry the tub.	PartlyFantasy shells stand alone; acrylic models lean on a frame.
Clamped plumbing	PartlyBarbed and glued fittings; clamping is likely but unconfirmed.	PartlyMostly glued joints, with unions at the pumps and heater.
Manifold-fed jets	YesManifolds split water to each jet, not jet to jet.	Not publishedCaldera Spas doesn't publish this.
Standard parts	PartlyBalboa and Gecko electronics; everything wet is Wellis-only.	PartlyWatkins-branded parts throughout: easy to buy, not industry standard.
Compression-fitted jets	YesJet bodies bolt in with a nut and gasket, per Wellis's own parts store.	PartlyOlder jets bolt in with a nut; current jet bodies aren't documented.
Adjustable jets	PartlyOne seat has adjustable jets; most control is zone-level.	PartlySome jets adjust; most jets on the big models do not.
Service network	PartlyFactory parts shop is open, but it ships from Hungary.	YesYour dealer services it, with a factory line as backup.
American made?	NoBuilt in Ózd, Hungary.	PartlyBuilt in Vista, California and Tijuana, Mexico.
Standby power
Models with a California filing	3 of 31	18 of 23
Median standby	231 WMedian of 3 filings	199.5 WMedian of 18 filings
Median standby, 6-seat models	Fewer than 3 filed	198 WMedian of 7
Lowest standby model	203 WHercules	107 WAventine
Jets and pumps
Jets per model	30 to 88Most jets: Olympus Life	11 to 74Most jets: Cantabria
Jet pumps per model	1 to 4	1 to 3
Warranty
Shell structure, top series	7 yearsPeakLife	10 yearsUtopia Series and Paradise Series
Equipment, top series	5 years	5 years
Plumbing, top series	5 years	5 years
Shell structure, entry series	5 yearsCityLife	5 yearsFantasy Series
Company
Built in	Ózd, Hungary	Vista, California and Tijuana, Mexico
Founded	2003Dabas, Hungary	1976El Cajon, California
Owner	Privately held	Masco Corporation
Records
BBB rating	AAccredited	C-Not accredited
BBB complaints, 3 years	55Shared company profile	18Shared company profile
ConsumerAffairs	No review page	1.3 of 550 reviews
U.S. safety recalls	None foundCPSC recall search	None foundCPSC recall search

No manufacturer pays us. How we make money

Common questions

Is Wellis better than Caldera?

Neither is better for everyone. Wellis suits you if you want room for 9. Caldera suits you if you want a lower starting price ($5,499 against $10,499) and a tub that plugs into a regular outlet (8 models). Sit in both before you choose; dry is fine.

Which costs less, Wellis or Caldera?

Wellis: $10,499 to $29,499 (list prices, MSRP). Caldera: $5,499 to $29,499 (list prices, MSRP). What you pay depends on the model, options, delivery and the dealer, so ask each for a written, itemized quote.

Are Wellis and Caldera made by the same company?

No. Wellis is privately held; Caldera belongs to Masco Corporation.

Where are Wellis and Caldera hot tubs made?

Wellis builds in Ózd, Hungary. Caldera builds in Vista, California and Tijuana, Mexico.

Sources

California Energy Commission appliance database (spas) cacertappliances.energy.ca.govstandby watts for Wellis and Caldera models
Wellis warranty wellisspa.comPeakLife warranty terms
Better Business Bureau: Wellis bbb.org · checked September 2026rating and complaint count
Ownership record: Wellis kozzetetelek.mnb.huPrivately held
Caldera Spas warranty calderaspas.comUtopia Series and Paradise Series warranty terms
Better Business Bureau: Caldera Spas bbb.org · checked September 2026rating and complaint count
ConsumerAffairs: Caldera Spas consumeraffairs.com · checked September 2026owner rating
Ownership record: Caldera Spas sec.govMasco Corporation
CPSC recalls cpsc.govrecall search

Get the price range On a Wellis or a Caldera