# 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat

Rediscover relaxation at home with the **CenturaHeat 4 Person Full Spectrum Infrared Indoor Sauna** — a beautifully crafted cabin designed for comfort, recovery, and shared wellness. Built from durable **Canadian Hemlock**, it combines the deep muscle benefits of carbon-fibre infrared heat with the revitalising effects of full-spectrum light therapy for a complete home spa experience.

## Full-Spectrum Heat for Complete Recovery

Powered by a **3400 W dual heating system**, this sauna uses both carbon-fibre and full-spectrum infrared panels to deliver balanced, penetrating warmth. The heat works deeply to help relieve muscle tension, improve circulation, and support natural detoxification. Perfect for families or small groups, it offers professional-grade performance in an elegant, home-ready design.

## Crafted for Comfort and Connection

Constructed from premium Canadian Hemlock, the cabin blends strength, natural beauty, and excellent heat retention. The smooth, aromatic wood creates a calm, restorative atmosphere, while the spacious four-person layout ensures plenty of room to stretch, relax, and recharge together.

## Smart Controls and Personal Ambience

Adjust every detail of your session using the digital control panel or Wi-Fi mobile app. Set temperatures between **18°C and 65°C**, customise the timer up to **99 minutes**, and fine-tune the lighting to match your mood. Integrated Bluetooth, FM radio, and USB MP3 playback bring your favourite playlists to life through built-in speakers. Soft LED reading lights and optional coloured star lighting complete the soothing atmosphere, while the optional oxygen ioniser helps keep air fresh throughout.

**Hardwired installation required:** Designed for connection to your home’s mains supply by a qualified electrician.

![](https://wp.prolinedirect.co.uk/wp-content/uploads/2024/06/SAUNA-MARKS.png)

### KEY FEATURES

**Full spectrum system:** Carbon-fibre panels combined with full-spectrum infrared light

**Spacious interior:** Comfortable 4 person indoor layout

**Premium build quality:** Durable Canadian Hemlock construction

**Smart controls:** Digital panel with Wi-Fi mobile app connectivity

**Adjustable temperature:** Range from 18°C to 65°C

**Flexible timer:** Session length up to 99 minutes

**Integrated audio:** Bluetooth, FM radio, and USB MP3 playback

**Ambient lighting:** LED reading lights plus optional coloured star lighting

**Fresh air option:** Optional built-in oxygen ioniser

**Home installation:** Hardwired 230 V electrical connection

### SPECIFICATION

**Capacity:** 4 person  
**Sauna Type:** Indoor full spectrum infrared sauna  
**Heater Type:** Carbon fibre and full spectrum infrared panels  
**Temperature Range:** 18°C–65°C  
**Timer:** Up to 99 minutes

**Dimensions (W × D × H):** 1800 mm × 1200 mm × 2000 mm  
**Material:** Canadian Hemlock wood

**Control Options:** Digital control panel and Wi-Fi mobile app  
**Audio:** Bluetooth, USB MP3, FM radio  
**Lighting:** LED reading lights plus optional coloured star lighting  
**Air Quality:** Optional oxygen ioniser

**Rated Power:** 3400 W  
**Voltage:** 230 V  
**Current:** 20 A  
**Connection:** Hardwired installation required

**Assembly:** Flat-packed  
**Warranty:** 1 year (electrical components), 2 years (wooden structure)

### DELIVERY

Your sauna is delivered securely packaged to help ensure safe transport and straightforward handling on arrival.

Most saunas are delivered in multiple flat-packed boxes or a wooden crate, depending on the model. Delivery is kerbside only, meaning the driver will deliver to the nearest accessible point at your property but is not responsible for moving the goods inside.

This product is delivered on a 7.5 or 18 tonne vehicle. If access for a vehicle of this size may be restricted, please contact us in advance. Additional charges may apply if re-delivery is required using a smaller vehicle.

If you are unsure whether your postcode qualifies for free delivery, please use the delivery fee calculator in the shopping cart.

This sauna is supplied flat-packed and is designed for home self-assembly. Full written instructions and a step-by-step guide are included to help make installation straightforward.

Position the sauna on a level, solid indoor surface with adequate surrounding clearance for ventilation and access. Ensure the room is dry and well ventilated.

Sauna Type

Weight

No. of Boxes

Dimensions

Infrared Light Sauna

300kg +

3-5

Flat packed

Traditional Steam Saunas

270kg +

4-7

Flat packed

Outdoor Saunas

300kg +

3-6

Flat packed

Wood Barrel Saunas

616kg +

1

Wood Crate

Corner Saunas

350kg +

3-7

Flat packed

Deluxe Relax Saunas

300kg +

3-7

Flat packed

Combination Saunas

300kg +

4-7

Flat packed

###   

### Assembly Service (Optional)

Our sauna assembly service is available as an optional extra when ordering a sauna.  
This service is ideal if you’d like professional setup on the day of delivery, without the hassle of self-assembly.

#### Coverage

Please refer to coverage map below:  
Green: Available for Assembly Service.  
Red: Please contact us before including the Assembly Service.  
Yellow (Striped) : We do not cover this area currently.

![](https://cdn.shopify.com/s/files/1/0931/0919/1003/files/sauna_map.webp?v=1783348915)

**Green:** Available for Assembly Service.  
**Red:** Please contact us before including the Assembly Service.  
**Yellow (Striped) :** We do not cover this area currently.

#### Delivery vs assembly date

The assembly date may differ from the delivery date shown on the product page.  
Once your order has been placed, our team will contact you to confirm and arrange a suitable assembly date.

#### What happens on the day

-   Arrival with the sauna
-   Offloading of all components
-   Assembly and positioning at the location specified by the customer

#### Important to note

-   We do not carry out any electrical connections
-   We do not remove packaging or waste from the site

###   

### INSTRUCTIONS

This model must be hardwired by a qualified electrician to a suitable 230 V supply. Ensure all electrical work complies with current regulations.

Sauna Use Guide

[Download](https://cdn.shopify.com/s/files/1/1029/2396/0650/files/READ-FIRST-Sauna-Use-Guide.pdf?v=1781537642)

Assembly/Instructions Manual

[Download](https://cdn.shopify.com/s/files/1/1029/2396/0650/files/HEAT-HS3003-Manual_f22bea1b-fcb6-4fc8-9132-372594b637f4.pdf?v=1781775248)

Control Panel/Mobile App

[Download](https://cdn.shopify.com/s/files/1/1029/2396/0650/files/Control-Panel-Manual_1.pdf?v=1781536431)

**Please note:** any device above 3000W requires an electrician to connect it to the mains.

Before first use, wipe down interior surfaces and run the sauna briefly to allow the heaters to settle. Always follow the safety guidance provided in the manual regarding session length, hydration, and safe operation.

## Details

- **Price:** 2782.0 GBP
- **Vendor:** CenturaHeat
- **Type:** Saunas
- **Tags:** black-friday

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2782.00 GBP | In stock |

## Images

- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat
- 4 Person Full Spectrum Infrared Indoor Sauna by Centuraheat

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> Source: [Gym Fitness Store](https://gymfitnessstore.co.uk/products/4-person-combination-bio-indoor-sauna)
> Updated: 2026-08-27