If you're shopping for a backyard water feature in Canada, you've almost certainly landed on two options: a hot tub or a swim spa. They look similar in brochures, they both heat water, and dealers sometimes pitch them interchangeably. But they serve fundamentally different purposes, and the gap in cost, space, and ongoing commitment is wider than most people realize.
A hot tub is designed for soaking, hydrotherapy, and relaxation. It seats anywhere from two to eight people, holds a relatively modest volume of water, and prioritizes comfort. A swim spa is a different machine entirely. It's built around a current generator that produces a continuous flow for swimming in place, more like a compact lap pool than an oversized hot tub. Some models include a separate hot tub section, but the primary function is exercise.
Both are legitimate products. The question is which one actually fits your life, your property, and your budget over the long haul.
Size and Space Requirements
This is where the two categories diverge immediately. A standard hot tub occupies a footprint roughly the size of a large dining table. It fits on a deck, a patio, a patch of gravel, or a flat section of lawn. It goes through a standard gate. It doesn't require structural engineering or site planning.
A swim spa is a different conversation. Most models run 12 to 20 feet long and weigh several thousand pounds when filled. That kind of footprint demands a dedicated area of your yard, often with reinforced ground preparation, proper drainage, and enough clearance for service access on all sides. For many Canadian homes, especially urban lots in Vancouver, Victoria, or the Fraser Valley, a swim spa simply won't fit without significant landscaping work.
Eco Spa hot tubs are built as a single, self-contained HDPE unit. They don't need a concrete pad or permanent foundation. A level surface is all that's required. And because the entire tub is one piece with no wood frame or cabinet, you can place it the same day it arrives and move it later if you need to. That kind of flexibility doesn't exist in the swim spa category.
Cost: What You're Really Signing Up For
The upfront price gap between a hot tub and a swim spa is substantial. A quality hot tub sits in a range that most homeowners can absorb without financing. A swim spa, even at the entry level, costs significantly more, and mid-to-premium models can run several times the price of a well-built hot tub.
But the sticker price only tells part of the story. Swim spas carry higher ongoing costs across every category: electricity, water treatment, cover replacement, and repairs. The gap compounds year over year.
For a deeper look at what drives hot tub pricing in Canada and where the hidden costs live, read our full cost breakdown.
Heating and Energy Costs
This is the line item that catches most swim spa owners off guard, especially in Canada.
A swim spa holds dramatically more water than a hot tub. Where a hot tub might hold a few hundred gallons, a swim spa holds well over a thousand. Heating that volume of water and maintaining temperature through a Canadian winter requires a much larger heater running far more hours per day. The monthly electricity bill for a swim spa in a cold climate is often multiples of what a hot tub costs to run.
Hot tubs, by contrast, are designed to maintain temperature efficiently at a fraction of the energy cost. HDPE shells retain heat better than acrylic, and a quality hard cover with high insulation value prevents heat loss between sessions. Eco Spa's lifetime hard cover maintains its R-value permanently, so your energy costs stay flat over the life of the tub, not climbing year after year as foam covers degrade.
If you want to see what a hot tub actually adds to a BC Hydro bill, we've done the math: Hot Tub Electricity Cost in BC.
Installation
Swim spa installation is a project. Many models require a crane to position, professional excavation if you're going partially or fully in-ground, a dedicated 240V electrical circuit (sometimes multiple circuits), and often a concrete pad or engineered base to support the weight. The installation timeline can stretch across weeks, and the total installation cost adds meaningfully to the purchase price.
A hot tub, depending on the model, can be a same-day affair. Eco Spa's one-piece HDPE tubs arrive as a complete unit. There's no assembly, no crane, no concrete pad, and no electrician required for 110V models. You place it on any flat, level surface, fill it, plug it in, and it's running. The entire process from delivery to first soak can happen in a single afternoon. Read more about the installation process.
There's another dimension most people don't think about until it matters: portability. A swim spa is a permanent installation. If you move, it stays. Eco Spa hot tubs are fully portable. The unibody HDPE shell means there's no wood frame to rot, no cabinet panels to detach. You drain it, move it, and set it up again at your next property.
Water Care and Upkeep
The larger the body of water, the more chemicals, filtration, and attention it demands. A swim spa's water volume means more sanitizer, more pH balancer, more frequent testing, and more cost in consumables. The exercise use case also introduces higher bather loads and more organic contaminants (sweat, sunscreen, body oils), which drives chemical demand even higher.
Hot tubs require less of everything by comparison. Smaller water volume means fewer chemicals, shorter filtration cycles, and simpler water management overall.
Shell material matters here too. Acrylic, which is standard on most swim spas and many hot tubs, is microscopically porous. Over time, those pores harbour bacteria and biofilm, which forces heavier chemical treatment. HDPE is non-porous by nature. Combined with an ozone sanitation system, Eco Spa tubs reduce chemical dependency to a fraction of what a traditional acrylic spa requires. The shell surface simply doesn't give bacteria anywhere to take hold.
Best Use Cases
This is ultimately what the decision comes down to. These are different products for different needs.
A swim spa makes sense if:
- You're a serious swimmer or triathlete who wants to train at home
- You have the yard space and budget for a permanent installation
- You're replacing both a pool and a hot tub with a single unit
- You're comfortable with higher ongoing operating costs as the trade-off for exercise functionality
A hot tub makes sense if:
- Your primary goal is relaxation, stress relief, or hydrotherapy
- You want something you can enjoy year-round in any weather
- Space is limited or you don't want a major construction project
- You value simplicity: plug in, heat up, soak
- You want the option to take it with you if you move
- You want to keep operating costs as low as possible
Most people who think they want a swim spa actually want a hot tub. The swim-in-place feature sounds appealing in theory, but the reality is that most swim spa owners use the exercise current far less than they expected and end up using it primarily as an oversized, more expensive hot tub.
The Verdict
For the majority of Canadian homeowners, a hot tub delivers better value, less hassle, and all the relaxation and therapeutic benefits you're actually looking for. It costs dramatically less to buy, install, and operate. It doesn't require a construction project or a crane. It doesn't demand a larger share of your monthly hydro bill. And with the right build quality, it will outlast a swim spa without the compounding maintenance burden.
Eco Spa builds hot tubs with a single-piece HDPE shell that won't crack, blister, or harbour bacteria. No concrete pad needed. Fully portable. Lifetime hard cover included. The tub is built to last, and the operating costs reflect it.
If you're weighing your options, browse the current lineup or get a direct quote for your property and delivery zone. We'll give you an honest answer on whether a hot tub is the right fit.