We get asked this a lot, usually by someone standing in their garden trying to picture where either one would actually go. Both are worthwhile. They’re just built for different things, and the right choice depends more on what you’ll actually do in the water than on budget alone.
What a hot tub is good at
A hot tub is a seated, jetted tub for relaxing rather than moving around. Most seat four to six people comfortably, and the water sits hot, usually 37-40°C. If your main use case is unwinding after work, soaking sore muscles, or having a drink with friends on a Saturday night, this is the simpler and cheaper option, both to buy and to run day to day.
What a swim spa is good at
A swim spa is longer, usually 4-6 metres, and splits into two zones: a current-generating swim section at one end and a hot tub-style seating area at the other. You can swim against the current for exercise, then move to the seated end and use it exactly like a hot tub afterwards. It’s a genuinely different product, not just a bigger hot tub. If you want to actually swim, or you’re thinking about it partly for fitness or rehab reasons, a swim spa does something a hot tub simply can’t.
Space is usually what decides it
This is where the conversation with most customers ends up. A hot tub needs a firm base roughly 2m x 2m plus some clearance around it. A swim spa needs a base the length of the unit itself, so you’re looking at a much longer, narrower footprint. If your garden genuinely doesn’t have room for a 5-metre unit, that settles the question regardless of preference. Measure the actual space before you fall in love with either option.
Running costs differ too
A swim spa holds more water and runs its jets and current pump for longer stretches during use, so electricity and chemical costs tend to run higher than a hot tub of similar quality. Neither is expensive to the point of being impractical, but it’s worth knowing going in rather than being surprised later.
Which is easier to look after?
A hot tub is the simpler of the two to keep on top of. It holds less water, has fewer filters and, being smaller, is quicker to drain and refill when the time comes. A swim spa holds a lot more water and often runs two separate systems, the swim side and the seating side, so there is a bit more to test, balance and clean. Neither is hard work once you have the routine, but if low-fuss upkeep is high on your list, that is a point for the hot tub. Either way, we can set you up with a simple water-care routine and take the servicing off your hands.
Getting one into your garden
Delivery is where the two really part company. A hot tub can usually be worked down the side of a house on a trolley by a small team, provided the access is wide enough and reasonably level. A swim spa is a large, heavy, one-piece unit, and getting it into position sometimes needs a crane lift over the house or a clear, wide route round the side. That is not a reason to rule a swim spa out, but it does need planning, and we always check access before anything is ordered so there are no surprises on delivery day.
Think about who will use it, and how often
It helps to be honest about who is actually going to get in the water. If the household mainly wants to relax, chat and ease aching muscles in the evening, a hot tub covers that well and tends to get used most nights. If someone swims regularly, is training, or has been told to keep moving for a joint or a back, the current in a swim spa gives them a low-impact way to do it at home whatever the weather. Plenty of families want both things, and in that case a swim spa can do the lot, as long as the space and budget stretch to it.
What each one is like through a Cornish winter
Both get used year round down here, and both are pleasant in cold weather once you are in. The difference is that a swim spa gives you somewhere to actually exercise when it is too wet, dark or windy to be out running, which is most of a Cornish January. A hot tub is more about warming up and winding down. If part of the reason for buying is to stay active over the colder months, that is worth weighing up.
Frequently asked questions
Can a swim spa replace a swimming pool?
For most people, yes, and with a lot less hassle. You get a proper swim against the current in a footprint far smaller than a pool, it is heated so you can use it all year, and it doubles as a hot tub. What it will not give you is length for several people to swim laps at once, so if that is the goal a pool still wins.
Is a swim spa a lot more expensive to run than a hot tub?
It generally costs more, because there is more water to heat and the current pump draws power while you swim. How much more depends on the model, the insulation and how often you swim. We will go through the likely running cost of any unit you are considering so it is part of the decision.
Can I try both before I buy?
Yes, and we would recommend it. We have models on display near Camborne where you can sit in a hot tub and see a swim spa in person. Ten minutes with each usually makes the choice obvious. Give us a call before you set off and we will make sure the models you want to see are there and set up ready.
Do you deliver and install both across Cornwall and Devon?
We do. We deliver, position and set up both hot tubs and swim spas across the region, and we look after the servicing afterwards, so you have the same local team behind whichever one you pick. We check access to the spot first, since a swim spa especially needs a clear route or sometimes a crane lift, and we sort that before delivery day.
What we’d ask you
Do you want to swim, or do you want to sit and relax? Most people already know the answer once they ask themselves that directly. If you’re still not sure, come and see both in person at our display near Camborne. Sitting in one for ten minutes tells you more than any spec sheet.
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Reviewed by the Coastal Hot Tubs and Wellness team.
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