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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 DuoOne is a sleek and compact 2-lounger hot tub, designed for those who appreciate a balance of relaxation and efficiency. With a 550-litre capacity and 39 jets, it offers a powerful yet soothing massage experience, making it perfect for individuals or couples seeking a private spa retreat. Crafted from premium USA Aristech Acrylic, it combines durability with modern aesthetics, creating a stylish addition to any outdoor or indoor space.
Powered by a 3HP pump and an energy-saving circulation pump, the DuoOne ensures consistent water flow while minimising energy consumption. The Balboa BP200 control system allows for intuitive operation, while the 3,000W Balboa heating element keeps the water warm and inviting. Designed for a relaxing ambience, the hot tub features 15 water-level LED lights and a 5-inch underwater light, creating a tranquil atmosphere for evening soaks.
Measuring 2,000mm x 1,400mm x 780mm, the DuoOne offers a spacious yet space-efficient design. It operates on 32AMP or 13AMP power, allowing flexibility in installation. Equipped with Bluetooth connectivity and an integrated speaker system, it enhances the experience with music and entertainment. An ozone and filtration system ensures crystal-clear water, while 20mm insulation provides heat retention for energy efficiency. With a water segregation system, the tub maintains excellent water hygiene.

Hot Tub Hard Thermal Cover Lid
£495 FREE
That's £1,442.98 of extras included at no cost.
Combining style, performance, and comfort, the DuoOne is the perfect choice for those looking for a high-quality, energy-efficient hot tub designed for intimate relaxation.
* 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