The Coil is our most elemental expression of fire and water. With its external stainless steel coil heater – and optional traditional rocket stove – it preserves the authenticity of an open flame heating experience. You don’t just soak in warm water; you witness the transformation from wood to warmth.
All heating components sit outside the bathing space, leaving the interior generous and uninterrupted. The result is a hot tub that feels architectural, immersive, and designed for long evenings of conversation under open skies.
– External stainless steel coil heating system
– Optional rocket stove for intensified performance
– A visible, authentic wood-fire experience
– Easy access for cleaning and maintenance
The Coil is ideal for stone patios, garden settings, and open landscapes where flame becomes part of the atmosphere. Because it operates with open fire, it is not suited to fire-sensitive surfaces such as wooden decks.
Number of people: 3 – 5
Litres of water: 750ℓ
Diameter inside: 1550mm
Height: 700mm
Depth of bath: 600mm
Empty weight: 70kg
Full weight: up to 1000kg with 4 adults
Bath Material: Fibreglass with marine gel top coat
Material external: Treated pine or (optional) rhino wood
Heating time: 75 – 120 minutes
Heater material: 2,5mm stainless steel
Bath colour: Pebble grey
Included: Thermal GeoBubble cover
COIL HOT TUB
Treated Pine R37 900
Rhino Wood R41 900
– 3-year warranty on the coil heater
– 1-year warranty on the wooden cladding
– 1-year warranty on the fibreglass
– 1-year warranty on any extras ordered
*please note that the warranty is on factory/manufacturing faults only.
What makes the Coil Hot Tub different?
The Coil Hot Tub uses an external stainless steel coil heater (with an optional rocket stove), keeping the bathing area open and uncluttered while delivering an authentic open wood-fire experience.
Is the Coil Hot Tub suitable for wooden decks?
Because the Coil heater operates with a visible open flame, it is not suitable for placement on fire-sensitive surfaces such as wooden decks.
If you’re planning to position your hot tub on a timber deck, the Snorkel hot tub is the perfect choice. Its enclosed heating system makes it a safer and more suitable option for deck installations, without compromising on the authentic wood-fired experience. Discover the Snorkel hot tub.
Is the Coil Hot Tub easy to clean and maintain?
Yes. With heating components outside the bathing area, the interior remains open and accessible, making cleaning and routine maintenance straightforward. See our blog about hot tub maintenance here.
For detailed answers on installation, delivery, materials, accessories, and care, explore our full Frequently Asked Questions page:
Spacious and uninterrupted, the Coil’s interior is designed for open immersion – allowing full-body soaking in complete freedom of movement. Hand-layered from premium fibreglass and finished with a marine-grade gel coat, it is built for durability while maintaining refined comfort.
At its core, the shell is constructed using marine-grade vinylester resin – chosen for superior strength, water resistance, and long-term structural integrity.
The curved interior supports the body naturally, while the non-slip base ensures stability – even during longer gatherings.
Every Buitengewoon hot tub is wrapped in carefully selected timber cladding that enhances both its performance and its presence in your space.
We offer two exceptional options:
CCA-treated pine wood is a warm-toned, cost-effective timber treated for long-term resistance to moisture, insects, and decay, ensuring your tub remains beautiful season after season.
Rhino wood is a premium, thermally modified hardwood with rich, natural tones. Highly durable and low-maintenance, it’s designed to withstand the elements while ageing with elegance.
Your choice of cladding frames your hot tub’s beauty – making it distinctly yours.
