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The most efficient way to heat a hot tub or swim spa. Ask us about adding one — it pays for itself in running costs:
Up to 75% cheaper to heat
An air source heat pump moves heat rather than making it, so it sips electricity where the built-in heater guzzles it — dramatically lower running costs.
Around 5kW of heat per 1kW used
It draws free warmth from the outside air, delivering roughly four to five times the energy it consumes (a COP of ~4–5).
Warm all year round
Efficient down to low outdoor temperatures, so your spa stays at temperature through autumn and winter, not just the summer.
Quieter and greener
A quiet, weatherproof outdoor unit with a much smaller carbon footprint than heating on the electric element alone.
The TetraOne is a premium 4-seater hot tub designed to provide the perfect blend of relaxation, efficiency, and luxury. With a generous 1,000-litre capacity and 26 jets, it delivers a soothing and invigorating experience, ideal for both unwinding alone and enjoying time with friends or family.
Aristech Acrylic, the TetraOne offers durability and style, while its energy-saving circulation pump and powerful 3HP pump ensure excellent water flow with minimal running costs. The Balboa BP200G1 + TP500 control system makes operation effortless, and the 3,000W Balboa heating element maintains a consistently warm and inviting soak, whatever the weather.
Measuring 1,800mm x 1,800mm x 890mm, this compact yet spacious hot tub fits seamlessly into any garden or outdoor space. It runs on either 13AMP or 32AMP, offering flexibility in installation.
For added convenience, the hot tub includes Bluetooth connectivity and an integrated speaker system, allowing you to enjoy your favourite music while you relax. An ozone and filtration system keeps the water clean and clear, while 20mm insulation ensures excellent heat retention, making it energy-efficient and cost-effective to run. With a water segregation system that maintains water purity, the TetraOne offers a seamless and enjoyable spa experience.

Hot Tub Hard Thermal Cover Lid
£495 FREE
That's £1,442.98 of extras included at no cost.
* Two-year cover relates only to the spa electrical pack.
Air source heat pump (optional)
Optional extras
Choose your payment option
Includes nationwide delivery and positioning by our installation team. Delivery details · Finance available