Arctic Spa and Eco Spa are both Canadian brands building hot tubs for cold climates, so buyers often shortlist them together. Rather than make claims about Arctic Spa's exact models or numbers, this is a guide to the questions that actually separate any two tubs once the showroom shine wears off: what the shell is made of, how it holds heat, what it costs to run, and how long the warranty really lasts.
Start with the shell
Like most established hot tub manufacturers, Arctic Spa builds on the industry-standard approach: an acrylic shell with structural backing, set into a cabinet. It's a proven method and a quality version of it. The thing to understand about any acrylic tub is that acrylic is a surface layer bonded to other materials, and over years of Prairie heat-and-freeze cycling, bonded layers and seams are where wear tends to show up.
An Eco Spa is built differently. The shell is a single piece of HDPE, rotationally molded as one unibody — no acrylic surface layer, no glued-on backing, no seams to separate. The strength is in the shell itself. HDPE is also non-porous, so bacteria has nothing to grip and grow into the way it can on a more porous surface. That's the same plastic family used for things meant to live outdoors and take abuse for decades.
Acrylic-over-backing is the standard build across most of the industry, Arctic Spa included. It works. But it's still layers bonded together. An HDPE unibody is one solid, non-porous piece — the difference most owners feel years three through ten, not on day one.
Then look at the cover and how heat is held
Most of a hot tub's heat — roughly 70% — escapes through the top. So the cover matters more than almost anything else for what the tub costs to run. The common weak point across the industry is a foam-core cover: over time foam absorbs water, gets heavy, loses its seal, and the heater starts working harder to make up for it.
Eco Spa addresses the top directly. The cover is rated R-40, and instead of just resting under its own weight it's compressed down onto a perimeter seal with patented Power Clamps, so it stays tight. The body is wrapped in R-30 insulation (removable for service), with a 2″ air-chambered bottom. The result is a tub built to keep the heat it makes.
Run the numbers that show up monthly
Purchase price is a one-time number. Operating cost is the one you pay every month for the life of the tub, and over a decade-plus it's where the real money is. A poorly insulated tub with a waterlogged cover can quietly cost far more to run than a well-insulated one.
Eco Spa publishes its running cost as a range because it depends on the model and how you use it: roughly $10–$60 a month all-in (power, chemicals, and filters) across the lineup. That's not a marketing estimate pulled from a calculator — we run our largest model, the E6, on a power meter: just over a dollar a day in winter, 60–70¢ in summer, about $25 a month.
Read the warranty like a contract, not a slogan
Warranties are where the long-term confidence lives, and they're worth reading line by line. The questions to ask any brand: what's covered for life, what's covered for a few years, and what's the fine print.
Eco Spa's position is straightforward: a lifetime warranty on both the cover and the entire structure — as we put it, “we're the only company that does that.” The moving parts (jets, pump) carry 2-year parts and labour on Gecko components. Lifetime on the things that should never fail; a real term on the things that eventually wear.
Installation and power
An Eco Spa sits on any flat surface — a deck or a bed of crushed gravel — with no 5″ concrete pad required, because the strength is in the unibody shell. Power is 110/220 convertible: it draws up to 12 amps plugged into a standard 110V outlet, or runs a 4kW heater on 220V for faster heat and running jets and heat at once. You don't choose up front and you can switch later without changing parts.
How to compare them
| What to compare | Traditional acrylic build | Eco Spa |
|---|---|---|
| Shell material | Acrylic over structural backing | HDPE unibody, one piece |
| Surface & bacteria | Bonded surface layer | Non-porous, nothing to grip |
| Cover | Often foam-core (can waterlog) | R-40, sealed with Power Clamps |
| Body insulation | Varies by maker | R-30 body, 2″ air bottom |
| Running cost | Depends on insulation & cover | ~$10–60/mo, power-meter measured |
| Warranty | Read the line-by-line terms | Lifetime cover + structure; 2-yr parts |
| Install surface | Often a concrete pad | Any flat surface, no concrete pad |
| Power | Check the model's requirement | 110/220 convertible, switch anytime |