By CenturaHeat
4 Person Steam Outdoor Garden Sauna
🚚 Estimated Delivery: Saturday, December 27 - Tuesday, January 27
Turn your garden into a wellness space with the Centuraheat 4 Person Outdoor Sauna. Built for households that value recovery, warmth, and shared downtime, this sauna brings a blend of luxury craftsmanship and fitness-focused performance to your home environment.
Constructed from premium Canadian Hemlock, it offers strength, insulation, and timeless natural appeal. Measuring 1800mm x 1800mm, it’s perfectly sized for solo sessions or group relaxation — whether you’re easing sore muscles after a workout or simply switching off with friends.
At its core sits a powerful 8000W Harvia stove that produces rich, authentic steam for a traditional sauna experience. The LCD touch control lets you fine-tune the temperature from 18°C up to 90°C, giving you complete control over your session intensity.
Lighting and sound work together to shape the atmosphere. Chromotherapy LEDs shift through calming colours, while built-in Bluetooth speakers let you connect your favourite playlists or guided meditations. Thanks to Wi-Fi app connectivity, you can preheat the sauna before stepping outside — ideal for unpredictable UK weather.
Every detail is considered for a complete, ready-to-go setup. Included inside the box are a wooden bucket and scoop, sand timer, thermo-hygrometer, 20kg of Harvia lava stones, and asphalt shingle roofing — everything you need to start steaming straight away.
Key Features
Crafted from Canadian Hemlock for lasting quality.
Comfortably fits four people for group or family use.
8000W Harvia stove with digital temperature control.
Bluetooth audio, chromotherapy lighting, and Wi-Fi preheat app.
Purpose-built for UK gardens and home wellness spaces.
Designed for anyone serious about recovery, relaxation, and wellness, the Centuraheat 4 Person Outdoor Sauna combines traditional craftsmanship with smart technology to deliver the ultimate at-home spa experience.
Specifications
Wood: Canadian Hemlock
Sauna Size: 1800mm (W) x 1800mm (D) x 2000mm (H)
Roof Size: 2190mm x 2190mm
Power: 8000W Harvia Stove
Voltage/Amperage: 220-240V / 40A
Control: LCD Touch Panel (18°C to 90°C)
Lighting: Square chromotherapy light + LED strip + reading lights
Audio: 2 built-in Bluetooth speakers
Connectivity: MP3, Bluetooth, Mobile App (Wi-Fi)
Accessories: Bucket and scoop, timer, thermo-hygrometer, lava stones, asphalt roof
Specification
| Weight | 290 kg |
|---|---|
| Dimensions | 1800mm (W) x 1800mm (D) x 2000mm (H) |
| Sauna Size |
4 Person |
| Heater Type |
Traditional Sauna Stove |
| Width (mm) |
1800 |
| Depth (mm) |
1800 |
| Height (mm) |
2000 |
| Power |
8000W Harvia Stove |
Delivery
Delivery Package: Most Saunas are packaged in 3 - 5 Flat packed Boxes or 1 Wooden Crate, please refer to packaging info table below.
This product is delivered to Curb-Side only.
The driver is not required to take the package any further than this point. If you are unsure if your postcode constitutes for free delivery please revert to the delivery fee calculator on the shopping cart page.
Dimensions
| Sauna Type | Weight | No. of Boxes | Dimensions |
| Traditional Steam Saunas | 290kg + | 4-7 | Flat packed |
FAQ
Frequently Asked Questions
How much does it cost to run a sauna?
The cost of running a sauna depends on its wattage and how long you use it. Our saunas typically range from 2kW to 10kW. On average, running a sauna for an hour can cost between £0.50 and £2.50. Please refer to this Electricity cost calculator for more information.
What warranties do you carry on the saunas?
Our warranty term is: 1 Year for electric parts, 2 Years for wooden parts.
Are the Saunas easy to assembly/Install?
All our saunas come with Assembly Instructions which are easy and detailed. Saunas are assembled together using buckles/clamps with some screwing involved.
For Infrared Light saunas, the sauna can be plugged into any standard outlet in the house. For traditional steam saunas, the power needs to be connected to the mains of the house by an electrician.
How hot does the sauna get and how hot does the steam get?
For traditional steam saunas, the heat time and temperature can set by control panel is: 0-90mins and 18-99 degrees Celsius. For Infrared Saunas, the maximum temperature is 65 degrees Celsius.
When is the right time to add water to the sauna stones?
To ensure optimal performance and to avoid potential damage, only add water once the sauna stones have reached the appropriate temperature. This heat level is necessary to properly vaporize the water, creating the ideal steam environment.
Why shouldn’t I add water before the stones are hot?
Adding water to cold or warm stones can cause inefficient steam production, leading to a less satisfying sauna experience. In some cases, this may even damage the heating elements or stones, reducing the lifespan of your sauna heater.
How can I tell if the stones are hot enough?
The stones should feel intensely hot when you bring your hand near them (without touching!). Many sauna heaters also feature a temperature gauge to help you monitor the heat levels. Wait until the gauge reads at least 300°F before adding water.
What type of water should I use?
Use clean, distilled water when possible. Tap water with high mineral content may cause buildup on the stones and heater over time, affecting performance.
Are there any precautions I need to take like anti-mould?
If the sauna is placed in a very humid area, try to keep it dry. otherwise, no need do any precaution.
What size cable does this need for its supply?
For 3000W saunas, you would need at least 2.5mm size power input wire. For 4500W saunas, you would need at least 4mm power input wire.
Would an RCD be needed for the steam sauna?
Yes, a REC protection from the board would be needed. Please talk to your local electrician for details.
Is it delivered assembled?
No, the sauna is delivered dissembled and flat packed. Assembly is simple and easy with assemble videos or PDF manual available.
How long does it take to heat up once you turn it on?
When the external environment temperature is 10 degrees Celsius, it takes about 15 minutes to heat up to 50 degrees Celsius, and about 30 minutes to heat up to 70 degrees Celsius.
Does the timber from the outside get hot? Is it safe for children to touch this?
The timber outside is not hot, just little warmer and safety for touch.
Can the outside be painted or will this affect it in anyway?
Yes, outside of sauna with wood nature colour paint.
What type of wood is it made of?
The wood is Canadian hemlock.
Oxygen lonizer. What is this and what is the cost?
This is negative ion generator, please email us for a price.
Does the heater not come with stones?
Yes, the sauna stones are included. Please thoroughly rinse sauna stones before use.
Mobile App system, how much would this cost?
The control panel already includes this function. Please check description for confirmation.
How much do the heater elements cost if they stop working?
Please email for a price for the replacement.