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Saunum AirCube Terrace Outdoor Sauna 4-Seater

£29,999.00
Two Year Warranty
Authorised Retailer for Saunum
Free Shipping To Mainland UK
Pre-Assembled for Easy Installation
Customisation Options. Tailored to You

Call Us On 0333 090 3557 For Expert Advice

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  • Product Description
  • Specification
  • Buying Guide
  • Heater Information
  • Delivery & Installation
  • Return & Refund Policy
  • Resources
Product Description -

Saunum AirCube Terrace – Your Own Peaceful Garden Retreat

The Saunum AirCube Terrace is a beautifully crafted outdoor sauna designed to provide a calm place to relax in your garden. With its small built-in terrace, you can sit outside, cool off, or simply enjoy the fresh air between sessions. It’s stylish, solidly built, and fits perfectly beside a garden, patio, or pool.

Made from top-quality materials and designed to withstand all weather, this sauna is easy to enjoy, easy to use, and ideal for anyone seeking everyday luxury.

Customise It To Suit You

Exterior Colours – Black, Anthracite, or Light Grey

Select the look that best fits your garden. Whether you prefer something bold or more subtle, the AirCube Terrace blends seamlessly into any outdoor setup.

Glass Choices – Clear, Bronze, or Grey

Choose how much light and privacy you want:

  • Clear for bright natural light
  • Bronze for a warm, cosy tint
  • Grey for a modern, private feel

Interior Woods – Alder or Thermo-Aspen

The interior is finished in smooth Alder wood, giving the sauna a warm, natural feel. You can upgrade to Thermo-Aspen for stronger, long-lasting timber that handles heat exceptionally well and looks wonderfully elegant.

Benches – I-Shaped or L-Shaped, Alder or Thermo-Aspen

Choose between a straight I-shaped bench or a spacious L-shaped bench. Both are available in Alder or the premium Thermo-Aspen wood, depending on your comfort and style preference.

Light, Sound & Atmosphere

The sauna features soft indoor and outdoor LED lighting to help you set the perfect mood. Optional dimmable lights let you create a cosy evening glow. You can also add Bluetooth speakers to enjoy your favourite music or calming sounds while you relax.

Built with Smart Details

From the insulated walls that keep the heat in to the solid self-closing door made with oak and stainless steel, the AirCube Terrace is engineered for comfort, efficiency, and long-lasting quality.

Made for Your Well-Being

Every part of this sauna can be tailored to your taste. With a range of colours, wood types, glass options, and layout choices, you can create a sauna that fits your garden—and your lifestyle—perfectly.

Specification +
  • Model: AirCube Terrace
  • External Dimensions: D2400 x W2800 x H2486 mm
  • Capacity: 4-5 Persons
  • Weight: 1700 kg
  • Exterior Cladding: Thermo-Pine, Hidden Fixings
  • Glass: Double-Glazed, Tempered (Clear, Grey, Bronze)
  • Insulation: Mineral Wool
  • Roof: Protan SE 1.2 mm (PVC), UV Resistant
  • Lighting: 4 Interior LED Lights + Outdoor LED Lights
  • Bench Type: I-Shaped (Alder or Thermo-Aspen, L-Shaped Optional)
  • Door: Self-Closing, with Security Lock
  • Ventilation: Forced Ventilation
  • Audio System: Bluetooth Speakers (Optional)
  • Heater Compatibility: Saunum Experience or Saunum Spa Session
  • Electrical Supply: 120V for Lighting, 240V for the Sauna Heater
  • Warranty: 2 Years
Buying Guide +

The Saunum Sauna Experience

How It Works

Saunum is a world leader in sauna innovation, renowned for its patented air-blending technology that creates a perfectly balanced thermal environment. Because Saunum units are precision-engineered and arrive as significant, pre-assembled structures, we follow a rigorous professional process to ensure your investment is handled with the highest level of care.

1. Place Your Order & Site Assessment

We invite you to schedule a personalised consultation with our specialist team to discuss your project in detail. We recognise that a wellness installation of this calibre is a significant investment, and we are dedicated to providing the expert guidance and transparency you need to move forward with complete confidence.

During this stage, we review your selected model—from the Leil to the Primary series—and perform an initial assessment of your property to ensure a seamless logistical path.

2. Bespoke Production

Once your specifications are finalised, your sauna enters the production phase.

  • Craftsmanship: Every Saunum sauna is built to order, ensuring that the timber work and internal air-blending systems are integrated to factory standards.
  • Lead Times: Due to the bespoke nature and high level of customisation, the production lead time is 8–10 weeks.
  • Total Timeline: Including international transit and logistics coordination, you should expect a 10–12 week window from order to arrival.

3. Delivery & Professional Logistics

While we offer complimentary delivery to Mainland UK, it is important to understand the distinction regarding "Last Mile" logistics.

  • Pre-Assembled Nature: Because Saunum saunas are delivered fully built, they require specialist handling.
  • Logistics Audit: We consult with our specialist delivery partners prior to production to verify access.
  • Last Mile Requirements: The final stage of delivery (from the kerbside to your specific location) often requires specialised equipment such as a HIAB or crane. As access requirements vary significantly from property to property, this "last mile" service is quoted and invoiced separately based on your specific site needs.

4. Preparation Checklist (Pre-Delivery)

A successful installation relies on two critical pillars of preparation:

  • The Foundation: You must provide a solid, level foundation. This base must be engineered to support the combined weight of the structure and its maximum occupancy.

    • Example: If your sauna weighs 1,600kg and accommodates 4 people, your base should be rated to support 2,000kg – 2,200kg.

  • Electrical Infrastructure: Electrical installation is the customer’s responsibility. We strongly recommend consulting a qualified electrician before placing your order.

    • Resources: We will provide the specific Saunum wiring and heater manuals in advance so your electrician can ensure your property’s power supply is prepared for the specific load.

5. Delivery & Inspection

On your scheduled delivery day, your sauna arrives in its final, pre-assembled form.

  • Specialist Equipment: Our team will utilise the equipment identified during your site assessment (e.g., crane or heavy-duty forklift) to navigate your property's specific access requirements.
  • Once the unit is positioned and unpacked, please inspect all components, including the glass facade and internal air-blending heater. To maintain your warranty eligibility, any discrepancies must be reported to our support team within 24 hours.

6. Installation: The Plug-and-Play Advantage

One of the primary benefits of a Saunum sauna is the "Plug-and-Play" design. Because the unit is pre-assembled, no on-site sauna build construction is required.

  • Final Connection: Installation consists primarily of your certified electrician connecting the unit to your pre-prepared power supply.

7. Warranty Validation & Handover

To validate your manufacturer’s warranty and protect the integrity of the Nordic timber:

  • Wood Treatment: You must immediately treat the interior and exterior timber with a high-quality, suitable breathable wood oil. This is a mandatory step to protect against moisture and ensure long-term durability.
  • Mechanical Check: Verify that doors, windows, and ventilation slats operate precisely.
  • System Commissioning: Once the electrical connection is certified, run a full test cycle of the Saunum air-blending heater and any integrated LED systems to experience the unique Saunum climate.

8. Enjoy Your Sauna & Aftercare

Your Saunum is designed to provide a lifetime of superior wellness.

  • Maintenance: Periodically inspect the wood finish and electrical components. Proper maintenance ensures the patented air-blending system continues to perform at its peak for decades.
  • Ongoing Support: As your dedicated reseller, we provide long-term assistance. Contact our team at any time for maintenance advice, replacement parts, or technical support.
Heater Information +

The Saunum AirCube Terrace Outdoor Sauna supports two advanced heating options:

  • Saunum Experience Heater: A flexible, height-adjustable heater ideal for everyday sauna use, offering efficient air blending and smart control compatibility.
  • Saunum Spa Session Heater: A premium wall-mounted heater with dual-level stone baskets and concealed ducting, designed for longer heat retention and refined steam control.

Both options integrate with Saunum Leil smart controls, including mobile and Wi-Fi functionality, allowing precise control over temperature, timing, and sauna modes.

Delivery & Installation +

Delivery and Unloading Guide

All Saunum products are custom-crafted to order in Estonia, the historic home of the traditional sauna. While we are pleased to offer complimentary delivery directly to your doorstep, please be advised that unloading and final positioning of the sauna are the customer's responsibility.
Because all Saunum saunas arrive fully assembled, they cannot be offloaded by hand. We highly recommend consulting our Installation Guide prior to delivery to ensure your site is adequately prepared.

Offloading Options

Depending on your property's accessibility, you will need to arrange one of the following specialised offloading methods:

  • Forklift: This is the most cost-effective solution, provided your property has adequate space and suitable terrain to transport the sauna from the delivery truck to its final location.
  • HIAB (Lorry Loader): A highly practical and affordable option if the sauna needs to be lifted over roadside boundaries, such as fences or low walls.
  • Crane: This service is necessary for more complex deliveries where the sauna's final destination is situated far from the road and is inaccessible to a forklift.

We can arrange the unloading for you, for an additional fee.

Foundation and Site Preparation Requirements

Proper site preparation is essential to ensure the longevity and structural integrity of your sauna. Please ensure your chosen location meets the following criteria prior to delivery:

  • Level and Stable Base: The foundation must be completely level and stable to safely support the weight of the sauna.
  • Full Beam Support: Every base beam beneath the sauna requires continuous, solid support underneath it.
  • Minimum Elevation: To ensure proper airflow and prevent moisture damage, the sauna must be elevated at least 75 mm above the surrounding ground. Please note that this elevation rule applies even if you are placing the sauna on a hardscape surface, such as a terrace or pavement.
  • Our Recommendations for a Perfect Base: We highly recommend placing the sauna on concrete blocks or concrete strip foundations set over compressed gravel. If you are installing over natural ground, laying a geotextile weed membrane underneath the sauna will effectively prevent grass and weeds from growing into the structure.

Need Assistance? If you are uncertain about site preparation or which offloading solution is most appropriate for your property, please contact us. Our team is happy to provide personalised advice and help you determine the best approach for a seamless delivery.

Return & Refund Policy +

Returns and Refunds Policy for Made-to-Order Saunas

We take pride in delivering high-quality, made-to-order saunas designed to meet your unique specifications. Because each sauna is individually crafted, our returns and refund policy reflects the bespoke nature of these products.

Why Returns Are Limited for Made-to-Order Saunas

Each sauna is custom-built according to specific customer requirements. As these items cannot be resold or restocked, we are unable to accept returns or offer refunds once the production process has begun.

Please review all details of your order carefully before confirming, including dimensions, features, and finishes.

  • Our Policy in Detail: Customisation Acknowledgement: By placing an order, you acknowledge that your sauna is a bespoke product created to your specifications.
  • Non-Returnable Items: Once production has commenced, cancellations, returns, or refunds are not permitted unless the product arrives defective or damaged.
  • Damaged or Faulty Products: If your sauna arrives with visible damage or a manufacturing defect, please notify us within 48 hours of delivery.

We will assess the issue and may provide a repair, replacement, or refund, depending on the circumstances.

Order Review

We strongly recommend verifying all measurements and customisation details before confirming your order.

  • Right to Cancel (Before Fabrication): You may cancel your order before fabrication begins, subject to an administrative fee.
  • Relevant Consumer Laws: This policy is designed in accordance with UK consumer protection laws, including the Consumer Rights Act 2015. Products must be of satisfactory quality, fit for their intended purpose, and accurately described. If your sauna fails to meet these standards, we will take appropriate action to resolve the issue.
  • Consumer Contracts (Information, Cancellation, and Additional Charges) Regulations 2013: Bespoke and made-to-order items are exempt from the standard 14-day cancellation period for online purchases. However, your rights remain protected if the product is faulty or does not conform to the agreed specifications.

Contact Information

If you have any questions or concerns about your order, please contact us at contact@balancerecovery.co.uk. We’re here to assist and ensure your satisfaction with our products.

Product Overview

Saunum AirCube Terrace Outdoor Sauna — Designed for Everyday Outdoor Living

The Saunum AirCube Terrace Outdoor Sauna 4-Seater reimagines outdoor heat therapy with a functionally elegant terrace design that expands both comfort and usability. Crafted for families, couples, or wellness enthusiasts who want social sauna sessions, this model balances premium aesthetics with engineered heat performance — all within a compact garden footprint.

Built around Saunum’s advanced air-blending heat distribution technology, the AirCube Terrace delivers smoother, more even temperature control than conventional outdoor saunas. This makes every session more comfortable — from gentle warmth to deeper heat cycles — while its terrace-inspired architecture enhances usability and relaxation outdoors.

Why Choose The Saunum AirCube Terrace?

A Garden Sauna That Balances Social Comfort and Technical Heat Performance

The Saunum AirCube Terrace is perfect for homeowners who want a garden sauna that feels spacious without being oversized, performs consistently, and blends beautifully with outdoor lifestyle spaces. Unlike ordinary outdoor cabins, this sauna is engineered for balanced heat delivery, comfort for multiple users, and seamless integration with your terrace, patio, or backyard.

This model is designed not just as a place to heat up — but as a destination for recovery, relaxation, and social wellbeing.

Wellness Benefits

Sweat Longer. Recover Faster.

Premium Features

Signature Features of the Saunum AirCube Terrace Sauna

What Is Included?

The Complete Nordic Sanctuary. Ready to Heat.

Step-by-Step Instructions

From Order To First Heat In 6 Steps

Build Overview

Technical Specifcations

SpecificationsSaunum Experience HeaterSaunum Spa Session Heater
Price£2399£3499
Power Options3.6 kW, 4.5 kW, 6 kW, 9 kW6 kW, 9 kW
Sauna Room Sizes2–5 m³ (3.6 kW), 3–5 m³ (4.5 kW), 5–7 m³ (6 kW), 7–10 m³ (9 kW)6–9 m³ (6 kW), 9–12 m³ (9 kW)
DesignCompact, open/closed stone basket, available in black or anthracite greyDurable Magnelis® and stainless steel, black finish, Wall-mounted design with concealed ceiling duct, compact footprint
ControlSaunum Leil or Saunum Leil Mobile Control UnitIntegrated control with touchscreen, Saunum Leil Mobile Set
Key FeaturesPatented air-blending system, Himalayan salt ions, 5-in-1 home spa solutions, Smart control, adjustable height (1800–2400 mm)Patented air-blending system, Himalayan salt ions, 5-in-1 spa solutions, steam guidance positioner, Wi-Fi-enabled
Weight & Dimensions40 kg, Open: 310 x 469 mm, Closed: 315 x 469 mm, Height: 1800–2400 mm adjustable57 kg, 365 x 490 x 1160 mm
Safety DistancesSides: 150 mm (3.6 kW, 4.5 kW), 50 mm (6 kW, 9 kW); Front: 150 mm (3.6 kW, 4.5 kW), 50 mm (6 kW, 9 kW); Stones to ceiling: 1000 mm (3.6/4.5 kW), 1050 mm (6 kW), 1250 mm (9 kW)Sides: 50 mm; Front: 50 mm; Stones to ceiling: 700 mm
Heating Time45–90 minutes to reach the desired temperature45–90 minutes to reach the desired temperature
VentilationAir must change 6 times/hour, air supply pipe diameter: 80–100 mm, air outlet diameter: 2x air supply pipe sizeAir must change 6 times/hour, air supply pipe diameter: 80–100 mm, air outlet diameter: 2x air supply pipe size
MaintenanceRestack stones annually, inspect salt balls annually, clean device with a damp cloth, use 10% citric acid solution for scale removalRestack stones annually, inspect salt balls annually, clean device with a damp cloth, use 10% citric acid solution for scale removal
Energy EfficiencyAn efficient heat retention and air mixing system reduces energy useDual-level stone basket retains heat longer, energy-efficient design
Included AccessoriesHeater, 7 salt balls, climate deviceHeater, 7 salt balls, climate device, integrated touchscreen control
SpecificationDetails
ModelAirCube Terrace
External DimensionsD2800 x W2400 x H2480 mm
Capacity4-5 Persons
WeightApprox. 1700 kg
Exterior CladdingThermo-Pine (Black Finish)
GlassDouble-Glazed Tempered Glass Window (Clear, Grey, Bronze)
InsulationMineral Wool
RoofProtan SE 1.2 mm (PVC), UV Resistant
LightingInterior LED (Dimmable Optional)
Bench TypeI-Shaped (Alder or Thermo-Aspen, L-Shaped Optional)
DoorSelf-Closing, with Security Lock
Floor TypePVC Floor Grid (Standard); Wooden Floor Mat (Optional)
VentilationVentilation System
Audio SystemBluetooth Speakers (Optional)
Heater CompatibilitySaunum Experience or Saunum Spa Session
Electrical Supply120V for Lighting, 240V for the Sauna Heater
Warranty2 Years

Technical Notes

Frequently Asked Questions

Is the AirCube Terrace delivered fully assembled?
What base is required for outdoor installation?
Do I need a qualified electrician?
Why is the heater sold separately?
Can this sauna be used year-round?
What makes air-blending heat different from standard sauna heat?
Are lighting upgrades available?
How long does it take to heat up?

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