CenturaHeat
CenturaHeat 4-6 Person Outdoor Cube Sauna
CenturaHeat 4-6 Person Outdoor Cube Sauna
Couldn't load pickup availability
Secure Checkout With
Bring spa-level wellness to your garden with the 4–6 Person Outdoor Cube Sauna – a modern design crafted from premium Canadian Spruce. Offering both traditional and infrared heating, it delivers a full-spectrum sauna experience, perfect for relaxation, recovery, and wellbeing.
Dual Heating Options
Enjoy the flexibility of a 6000W traditional stove or 10 infrared light panels (3500W total). Switch between classic steam heat and the deep, gentle warmth of infrared therapy, all controlled via a digital system or mobile app.
- Stove power: 6000W
- Infrared panels: 3500W
- Temperature range: 18–99°C
- Session timer: 1–99 minutes
- Voltage: 230V
Integrated Technology & Comfort
This outdoor sauna includes FM radio, Bluetooth, USB MP3 playback, charging port, two premium speakers, and explosion-proof interior lighting. An optional oxygen ioniser adds extra freshness to your sessions.
Spacious & Well-Equipped
Measuring 2000 × 1800 × 2000 mm, the Cube comfortably seats 4–6 people, making it ideal for families or small groups. Accessories include roofing felt tiles, bucket and ladle, sand timer, thermo-hygrometer, and sauna stones (rinse before use).
Durable & Reliable
Flat-packed for straightforward assembly with instructions and video guide. Backed by a 2-year warranty on the wood and 1-year on electrics.
* Please note: this sauna must be hardwired into your mains by a qualified electrician.
Transform your garden into a luxury retreat with the 4–6 Person Outdoor Cube Sauna – combining craftsmanship, technology, and ultimate comfort.
Specifications
- Dimensions: 200 × 180 × 200 cm
- Capacity: 4–6 people
- Heating Type: Infrared panels & traditional sauna stove
- Width: 2000 mm
- Depth: 1800 mm
- Height: 2000 mm
- Delivery Package: Supplied in a plywood crate (2000 × 1170 × 1130 mm)
- Weight: 616 kg
- Power Output: 6000 W + 3500 W
Delivery
Most saunas are delivered in 3–5 flat-packed boxes or in a single wooden crate (please see the packaging information below for details).
This product is delivered to kerbside only. The driver is not obliged to move the package beyond this point.
Packaging Information
- Sauna Type: Cube Sauna
- Weight: 350 kg+
- No. of Boxes: 3–7
- Format: Flat-packed
FAQ
How much does it cost to run a sauna?
Running costs depend on wattage and usage time. Our saunas range from 2kW to 10kW. On average, an hour’s use costs between £0.50 and £2.50. For more details, use an electricity cost calculator.
What warranties do you offer?
- Electrical components: 1 year
- Wooden parts: 2 years
Are the saunas easy to assemble/install?
Yes. All saunas include clear assembly instructions. Most panels are secured with buckles or clamps, with minimal screwing required. Infrared saunas plug into a standard household socket, while traditional steam saunas must be hardwired to the mains by a qualified electrician.
How hot do the saunas get?
- Traditional steam saunas: 18–99°C, set via the control panel (0–90 mins).
- Infrared saunas: up to 65°C.
When should I add water to the stones?
Only add water once the stones are fully heated. Adding water too soon reduces steam quality and may damage the heater.
How do I know when the stones are hot enough?
The stones should feel intensely hot when you bring your hand close (without touching). Many heaters also have gauges – wait until it reads at least 300°F (approx. 150°C).
What type of water should I use?
Use clean, distilled water where possible. Tap water with high mineral content may cause limescale build-up over time.
Do I need to take anti-mould precautions?
Generally no, but if your sauna is in a very humid space, keep the area as dry as possible.
What cable size is required?
- 3000W saunas: 2.5 mm supply cable
- 4500W saunas: 4 mm supply cable
Do I need an RCD for a steam sauna?
Yes, RCD protection is required. Please consult a qualified electrician.
Is the sauna delivered assembled?
No, saunas are delivered flat-packed. Assembly is simple, with video and PDF guides included.
How long does it take to heat up?
At an ambient temperature of 10°C:
- ~15 minutes to reach 50°C
- ~30 minutes to reach 70°C
Does the exterior timber get hot?
The outside becomes warm but remains safe to touch, even for children.
Can the exterior be painted?
Yes, it can be painted with suitable wood-coloured paint.
What type of wood is used?
All our saunas are crafted from Canadian Hemlock.
What is an oxygen ioniser?
An optional negative ion generator that freshens the air. Please contact us for pricing.
Are stones included with the heater?
Yes, sauna stones are supplied – rinse thoroughly before use.
Does the control system include a mobile app?
Yes, the control panel includes app connectivity. Please check the product description for confirmation.
How much do replacement heater elements cost?
Please contact us for current pricing on replacement parts.
- Description
- Specifications
- Delivery
- FAQ
- Delivery & Returns
Bring spa-level wellness to your garden with the 4–6 Person Outdoor Cube Sauna – a modern design crafted from premium Canadian Spruce. Offering both traditional and infrared heating, it delivers a full-spectrum sauna experience, perfect for relaxation, recovery, and wellbeing.
Dual Heating Options
Enjoy the flexibility of a 6000W traditional stove or 10 infrared light panels (3500W total). Switch between classic steam heat and the deep, gentle warmth of infrared therapy, all controlled via a digital system or mobile app.
- Stove power: 6000W
- Infrared panels: 3500W
- Temperature range: 18–99°C
- Session timer: 1–99 minutes
- Voltage: 230V
Integrated Technology & Comfort
This outdoor sauna includes FM radio, Bluetooth, USB MP3 playback, charging port, two premium speakers, and explosion-proof interior lighting. An optional oxygen ioniser adds extra freshness to your sessions.
Spacious & Well-Equipped
Measuring 2000 × 1800 × 2000 mm, the Cube comfortably seats 4–6 people, making it ideal for families or small groups. Accessories include roofing felt tiles, bucket and ladle, sand timer, thermo-hygrometer, and sauna stones (rinse before use).
Durable & Reliable
Flat-packed for straightforward assembly with instructions and video guide. Backed by a 2-year warranty on the wood and 1-year on electrics.
* Please note: this sauna must be hardwired into your mains by a qualified electrician.
Transform your garden into a luxury retreat with the 4–6 Person Outdoor Cube Sauna – combining craftsmanship, technology, and ultimate comfort.
- Dimensions: 200 × 180 × 200 cm
- Capacity: 4–6 people
- Heating Type: Infrared panels & traditional sauna stove
- Width: 2000 mm
- Depth: 1800 mm
- Height: 2000 mm
- Delivery Package: Supplied in a plywood crate (2000 × 1170 × 1130 mm)
- Weight: 616 kg
- Power Output: 6000 W + 3500 W
Most saunas are delivered in 3–5 flat-packed boxes or in a single wooden crate (please see the packaging information below for details).
This product is delivered to kerbside only. The driver is not obliged to move the package beyond this point.
Packaging Information
- Sauna Type: Cube Sauna
- Weight: 350 kg+
- No. of Boxes: 3–7
- Format: Flat-packed
How much does it cost to run a sauna?
Running costs depend on wattage and usage time. Our saunas range from 2kW to 10kW. On average, an hour’s use costs between £0.50 and £2.50. For more details, use an electricity cost calculator.
What warranties do you offer?
- Electrical components: 1 year
- Wooden parts: 2 years
Are the saunas easy to assemble/install?
Yes. All saunas include clear assembly instructions. Most panels are secured with buckles or clamps, with minimal screwing required. Infrared saunas plug into a standard household socket, while traditional steam saunas must be hardwired to the mains by a qualified electrician.
How hot do the saunas get?
- Traditional steam saunas: 18–99°C, set via the control panel (0–90 mins).
- Infrared saunas: up to 65°C.
When should I add water to the stones?
Only add water once the stones are fully heated. Adding water too soon reduces steam quality and may damage the heater.
How do I know when the stones are hot enough?
The stones should feel intensely hot when you bring your hand close (without touching). Many heaters also have gauges – wait until it reads at least 300°F (approx. 150°C).
What type of water should I use?
Use clean, distilled water where possible. Tap water with high mineral content may cause limescale build-up over time.
Do I need to take anti-mould precautions?
Generally no, but if your sauna is in a very humid space, keep the area as dry as possible.
What cable size is required?
- 3000W saunas: 2.5 mm supply cable
- 4500W saunas: 4 mm supply cable
Do I need an RCD for a steam sauna?
Yes, RCD protection is required. Please consult a qualified electrician.
Is the sauna delivered assembled?
No, saunas are delivered flat-packed. Assembly is simple, with video and PDF guides included.
How long does it take to heat up?
At an ambient temperature of 10°C:
- ~15 minutes to reach 50°C
- ~30 minutes to reach 70°C
Does the exterior timber get hot?
The outside becomes warm but remains safe to touch, even for children.
Can the exterior be painted?
Yes, it can be painted with suitable wood-coloured paint.
What type of wood is used?
All our saunas are crafted from Canadian Hemlock.
What is an oxygen ioniser?
An optional negative ion generator that freshens the air. Please contact us for pricing.
Are stones included with the heater?
Yes, sauna stones are supplied – rinse thoroughly before use.
Does the control system include a mobile app?
Yes, the control panel includes app connectivity. Please check the product description for confirmation.
How much do replacement heater elements cost?
Please contact us for current pricing on replacement parts.
Order Confirmation: As soon as you place your order, we will pre-authorise your card however your card will not be charged. We will then contact our supplier to confirm that the product you have purchased is available for immediate shipment. Once confirmed we will process the payment and your order will be dispatched straight away. If there is any delay such as an item which is on backorder, we will void the pre-authorisation and contact you to let you know.
Order Delivery: Once your order has been placed, assuming it is in stock and available for dispatch, we will charge your card and your order will be dispatched within 5 working days. We’ll send you tracking details by email within 24 hours of your order being dispatched. If you have not received tracking details within 6 working days, please reach out to us via email at contact@gymsphere.co.uk so that we can help.
Damages: We ask that you thoroughly inspect all items at the point of delivery. We advise you not to accept delivery of any damaged items. If you discover that an item has been damaged, please send clear photos of the damaged items
to contact@gymsphere.co.uk so that we can open an insurance claim on your behalf.
Cancellations & Refunds: Any orders cancelled after 48 hours of placing the order may be subject to additional fees. If your order has been dispatched, you (the buyer) will be responsible for any costs associated with returning the item. Any refunds can only be issued to the same payment method which was used to place the order.