Cal Spas has been building acrylic hot tubs out of California for decades, with one of the broadest lineups in the category: multiple price points, seating layouts and jet configurations, plus a name a lot of Canadian buyers already recognize from shows and retail floors. If you're comparing options in BC, it's a name worth taking seriously.
The short version: Cal Spas builds a traditional acrylic spa with a wide range of models to choose from. Eco Spa takes a different structural approach, a one-piece HDPE shell with a rigid hard cover, aimed at lower lifetime cost and lower maintenance. Here's the honest breakdown, sourced to what we can actually verify on each side.
Shell: Acrylic vs One-Piece HDPE
Cal Spas, like most of the industry, builds an acrylic shell backed by a supporting structure. Acrylic offers a wide range of colours and finishes, and a broad model range like this one gives buyers a lot of configurations to pick from. The trade-off with acrylic generally is that it's a layered, porous-surface material that can craze or develop micro-cracks over years of heat cycling, and the surface can harbour bacteria over time if the water chemistry slips.
Eco Spa uses a single piece of high-density polyethylene (HDPE), the same material used in hospital surfaces and underground water reservoirs. It's non-porous, can't absorb water, and has no seams or joints to fail. It's a more industrial look with fewer colour choices than Cal Spas' selection, but it's built with a lifetime warranty on the shell. For a deeper look at the material trade-offs, see HDPE vs acrylic.
The Cover: Foam vs Rigid Hard Cover
This is where a lot of the long-term cost difference tends to live, and it applies across most of the acrylic category, Cal Spas included as far as we're aware. Foam-core covers slowly absorb moisture, especially in BC's wet climate. After a few winters they typically get heavy and lose insulating value, and a waterlogged cover quietly drives your hydro bill up until it's replaced, usually every 3 to 5 years, at several hundred dollars each time.
Eco Spa's hard cover is a rigid, solid lid with an R-40 insulation value that can't absorb water and carries a lifetime warranty. You typically don't need to budget for another cover. Over a 10-year ownership window, that difference often outweighs a similar sticker price. See hard cover vs foam cover for the full breakdown.
Insulation & Running Cost
Cal Spas' broad lineup means insulation approach varies by model, from base full-foam builds to higher-end configurations, which is typical for a brand with this many SKUs. Eco Spa takes one consistent route across every model: an R-30 insulation wrap paired with the R-40 hard cover and an air-chambered base. Because roughly 70% of a hot tub's heat escapes through the top, that rigid cover tends to do a lot of the heavy lifting on Eco Spa's side.
In BC, a well-insulated tub like this typically runs about $10 to $40 per month in electricity at current BC Hydro rates. Where the difference tends to show up over time is year five or six, once a foam cover has degraded and a hard cover hasn't.
Water Care: Standard Chemical Systems vs Ecozone
Cal Spas' base models typically use standard chemical sanitation, with ozone offered as an upgrade on some configurations, which mirrors how much of the industry is set up. Eco Spa uses the Ecozone ozone system: activated oxygen that's roughly 3,000x faster-acting than chlorine and cuts chemical use by about 90%. In practice you follow a simple maintenance template set up at delivery: a small sanitizer residual, an enzyme stick, and the ozone doing the heavy lifting, usually a matter of about 15 minutes a month. It's a similar routine to the one outlined in our chemical-free hot tub guide.
Installation
Many multi-pump acrylic spas, across the industry generally, need a hardwired 220V circuit and sometimes a concrete pad, depending on the model. Every Eco Spa is convertible: plug into a standard 110V outlet, or hardwire 220V for faster heating, with no separate model to choose and no pad, plumber or crane required.
Warranty & Price
Cal Spas' warranty terms and pricing vary by model and dealer, so we'd point you to your local retailer for exact numbers rather than guess at them here. Eco Spa backs the shell and the hard cover with a lifetime warranty and adds 2 years of component coverage, unusual in the industry. Pricing starts at $11,999, and the value case is built around lifetime ownership cost (no cover replacements, low energy, minimal chemicals) rather than the lowest upfront number.
Which One Is Right for You?
If you want the widest range of acrylic models and price points, deep jet customization, and a well-known name with a broad dealer network, Cal Spas is a reasonable, established choice. If your priorities are lowest lifetime cost, lowest maintenance, and a shell and cover you likely won't need to replace, Eco Spa is built specifically for that. Both are capable hot tubs, they're just optimized for different things.
A good way to decide is to see the HDPE shell and lift the hard cover yourself. Visit a BC showroom or request a quote.
Frequently Asked Questions
Is Cal Spas a good hot tub brand?
Cal Spas has built acrylic hot tubs in California for decades and offers one of the widest lineups in the category, spanning price points, seating layouts and jet configurations. It is a traditional acrylic spa, so it carries the trade-offs that come with that shell material.
What is the main difference between Eco Spa and Cal Spas?
Structure. Cal Spas builds an acrylic shell on a supporting frame with a foam-core cover, the standard approach across most of the industry. Eco Spa builds a single-piece HDPE shell with a rigid lifetime cover. The difference tends to show up in what the tub costs to own over ten years rather than what it costs on day one.
Which is cheaper to own long term?
Eco Spa is designed around lifetime cost: no cover replacements, a running range of roughly $10 to $40 per month in BC, and minimal chemical use. Cal Spas' wide model range means upfront pricing varies a lot by configuration, so it is worth comparing a specific model against a specific Eco Spa before deciding.
Does Cal Spas offer financing?
Cal Spas dealers typically offer financing options, which is common across the acrylic spa category. Ask your dealer directly for current terms, since these change and vary by location.