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Planning Ahead for Summer 2026 – Hot Tubs and Swim Spas

Planning Ahead for Summer 2026 – Hot Tubs and Swim Spas

In this blog, we’ll guide you through the key points to think about before you invest in a home hot tub or swim spa. By planning ahead, you can ensure a smooth installation and be soaking or swimming in bliss when the warm weather arrives.

Hot Tub vs. Swim Spa – What’s the Difference?

First, clarify which of these fits your goals. A hot tub (or spa) is generally a heated tub with jets for relaxation and hydrotherapy, usually holding 2–8 people. They focus on seating, massage jets, and soaking, typically in 37–40°C water. A swim spa is a larger unit (often 4–6+ meters long) that combines a hot tub’s heating with space to allow swimming against a powered current. Essentially, it’s like a treadmill for swimming – you can do exercise laps in place, and many swim spas also have seats and jets so it doubles as a hot tub. Swim spas are great if fitness and continuous swimming are your aim but you don’t have room (or budget) for a full-size pool. They tend to be more expensive and require more space and stronger infrastructure than a standard hot tub due to their size and the powerful pumps needed to generate a current.

Site Selection and Preparation:

Choosing the right spot for your hot tub or swim spa is crucial. You can put these units outdoors (most common) or even indoors in a conservatory or outbuilding (if proper ventilation and floor support are in place). For outdoors, consider the following when picking the perfect position:

  • Solid, Level Foundation: The surface must support the considerable weight of a filled tub without sinking or shifting. A typical 4-6 person hot tub filled with water (and people) can weigh on the order of 2–3 tonnes – that’s equivalent to a car sitting in your garden. Swim spas are even heavier. Suitable bases include a poured concrete slab at least 4 inches thick, properly cured; patio paving slabs or reinforced decking; or pre-fabricated spa pads. The base should be absolutely level and stable. If you plan to put a spa on existing decking, have a professional verify the structure – joists often need beefing up to handle ~3000–4000 lbs of concentrated load. Skimping on the foundation can lead to an unsafe situation or damage, so this is non-negotiable.

  • Nearby Utilities (Electric & Water): All hot tubs (except perhaps small inflatables) will need to be hard-wired to an electrical supply. Typically, a dedicated 32A armored cable run from your consumer unit (fuse box) to an outdoor isolator near the tub is required (in the US this is usually a 240V/50A GFCI circuit). This work must be done by a qualified electrician in accordance with regulations (Part P building regs in the UK). Plan the tub location within a few meters of where the electrician can bring the supply. You’ll also want access to a water source – fortunately a simple garden hose is all that’s needed to fill your hot tub or spa. However, having an outdoor tap nearby makes top-ups and refills much easier. Also consider drainage: when you empty the tub (which needs doing every 3-4 months for water hygiene), where will that water go? Ensure there is a drain you can pump it to, or a spot in the garden downhill where the water can safely flow without flooding your or your neighbor’s property.

  • Access and Space: Think about how the spa will be delivered and serviced. The unit will arrive either on a flatbed truck or trailer; often a crane or hi-ab is used to lift it into your garden if access is tricky. Make sure you have a clear path at least the width and height of the tub if it’s being wheeled in (removing fence panels or widening a gate might be necessary). Once in place, leave at least 60 cm (2 feet) of clearance on the sides and back for maintenance access, and 1.2 m (4 feet) on the side where the control panel and pumps are (check your model’s manual for which side this is). This space allows technicians to get in and repair components down the line. Also, keep any overhead power lines at least 3 m away from the water for safety.

  • Privacy and Comfort: It’s ideal to position your hot tub in a private spot or plan for screening, so you feel comfortable using it (nobody wants to be in full view of neighbors or passersby when in their swimwear). You can use fencing, trellis with climbing plants, or strategically placed shrubs to create a secluded oasis. Additionally, consider protection from wind – an exposed site will cool the water faster and make getting in/out chilly. Many people build a gazebo or pergola over their spa, which offers privacy, some weather protection, and can look attractive. Just ensure any structure still allows enough headroom and access for crane placement of the tub if needed.

  • Proximity to the House: A general tip – closer is better. If you place the hot tub right outside your back door or just a few steps away, you’ll likely use it more, especially in cooler months. Imagine walking 2 meters versus 20 meters on a cold January night to your hot tub – the nearer one wins every time. A convenient location also means you’re more inclined to pop in for a quick soak or daily swim exercise. Just be mindful of locating it under a bedroom window (pump noise during filtration cycles could be heard) and consider the view – position it so that from the tub you can enjoy a nice vista of your garden or landscape, rather than staring at a wall!

Power Usage and Running Costs:

Modern hot tubs are designed to run 24/7 heating and filtering, which means they will inevitably add to your energy bill. It’s important to go in with a realistic expectation of running costs. For a standard well-insulated hot tub, current estimates (as of 2025) put electricity usage at around 3.5 to 6 kWh per day, which in the UK translates to roughly £1–2 per day to run a hard-shell hot tub. That’s about £30–£60 a month in electricity. Inflatable vinyl hot tubs, by contrast, are less efficient and can cost more like £5 per day because they lose heat faster. To keep energy usage down: invest in a quality thermal cover and use it whenever the tub is not in use (most heat is lost from the water surface). Also consider adding an extra floating blanket under the main cover for insulation. Many hot tubs have programmable timers – you can set the filtration and heating cycles to off-peak hours if your tariff is cheaper at night. Setting the thermostat a couple degrees lower when you’re not using the tub can significantly save energy as well; you can then bump it up shortly before you plan to use it. Some owners even build its own small enclosure or add insulation around the sides of the cabinet for winter. All these steps can help make a hot tub more economical to run. When planning electrical work, also think about whether you need an outdoor socket or a place to plug in music systems, lighting, etc. And remember that maintenance costs include chemicals (sanitizers, pH balancers) and possibly periodic service – budget an extra few hundred pounds per year for these consumables and upkeep.

If installing a swim spa, note that it will have larger pumps and more water to heat, so running costs will be higher – but still generally far less than a full-size swimming pool. Many swim spa owners use theirs year-round but might let the temperature drop a bit in winter (using it more like a plunge pool for exercise). Swim spas typically also require a 32A or even 40–50A electrical supply due to multiple motors. Ensure your electrician knows the specs of your chosen model. As with hot tubs, good insulation and a well-fitting cover (often a rolling cover or two-piece cover for big swim spas) are vital to keep energy use manageable.

Health and Fitness Benefits of a Swim Spa:

One of the exciting advantages of a swim spa (and to some extent, a hot tub with exercise jets) is the opportunity for aquatic exercise at home. Swimming is one of the best full-body workouts – it’s low impact on joints, builds cardiovascular endurance, and engages all muscle groups. A swim spa allows you to swim endlessly against a current without a large pool. Beyond swimming, you can do water aerobics, resistance exercises, or even just walk/jog in place against the current. The buoyancy of water means even those with arthritis or mobility issues can exercise comfortably. According to manufacturers, regular use of a swim spa can improve strength, flexibility, and balance, while also providing relaxation through hydrotherapy. Many models come with accessories like rowing bars, resistance bands, or underwater treadmills to expand your workout options. And when you finish your workout, you can use the spa section for a soothing massage – truly the best of both worlds.

Even a standard hot tub confers wellness benefits: the hot water and jets promote blood circulation, relieve muscle tension, and reduce stress. Using a hot tub regularly can aid recovery after exercise and improve sleep quality. In a swim spa, you get these hydrotherapy benefits plus the ability to actually swim or do aquatic therapy at home. It’s like having a personal gym and spa in your back garden. For anyone looking to stay fit, manage aches and pains, or simply disconnect from daily stress, a home spa is an investment in a healthier lifestyle. And importantly, a swim spa can be used year-round, regardless of weather, as it’s heated and often covered – no need to close it in winter.

Additional Considerations:

A few more things to keep in mind as you plan your hot tub or swim spa installation:

  • Permissions: The good news is that in the UK, you generally do not need planning permission for a standalone hot tub or swim spa on your property, as it’s a movable structure (considered permitted development). However, if you are constructing a gazebo, decking platform, or especially any building to house it, you may need to consult local planning rules. Likewise, if you live in a listed building or conservation area, check with authorities to be safe.

  • Safety: Think about safety measures, especially if you have children. A locking cover is essential to prevent anyone (or pets) from accessing the water unsupervised. There are also fence or barrier requirements in some jurisdictions for pools/spas – while not common in the UK for portable tubs, it’s worth being aware of. Non-slip steps or a handrail for entering/exiting the tub can prevent falls.

  • Maintenance: Be prepared to regularly test and treat the water. Hot tub water chemistry needs balancing (sanitizer like chlorine or bromine, pH adjustments, etc.) on a weekly basis, and filters need cleaning. Factor in the effort or consider a service plan. Also, draining and refilling every 3 months (for hot tubs) keeps water fresh. Swim spas with more water can go longer between water changes, but still need care. Using a system like an ozone or UV sanitizer can reduce (but not eliminate) chemical use. If this sounds daunting, don’t worry – once you get into a routine, it’s quite manageable, and your dealer will provide guidance.

Enjoy the Lifestyle:

Imagine summer 2026 – stepping into your backyard spa after a long day, or starting your morning with a refreshing swim against the current while birds chirp in the garden. With smart planning now, you can make this a reality. A home hot tub or swim spa isn’t just a luxury; it offers a private retreat for wellness, family fun (kids absolutely love spas), and even adds value to your property’s appeal. Many owners say it truly changes their lifestyle – more quality time outdoors, easier relaxation, and better fitness all at your fingertips.

So, take the time in these colder months to research models, prepare the site, and schedule any necessary electrical or construction work. By the time the sun is high and 2026’s summer rolls in, you’ll be ready to slide into your own crystal-clear hot tub or swim spa and relish the reward for your good planning. Stay warm, stay safe, and happy soaking!