Cube Saunas
Cube Sauna 324 XL
8
3.05m x 2.4m
Starts at €12,750
Cube Saunas
Thermo Cube Sauna XL
8
3.05m x 2.4m
Starts at €12,750

Cube Saunas

Thermo Cube Sauna XL

Create a personal sanctuary in your own backyard with this expansive 8-person outdoor sauna, specifically engineered to handle the varied weather conditions of Northern Ireland. This high-capacity model provides an unparalleled relaxation environment, utilizing a combination of high-grade Thermowood and smooth Alderwood to ensure lasting resilience and a sophisticated aesthetic. It has quickly become one of the most popular luxury wellness installations for homes across the UK, offering a perfect balance of durability and comfort.

Product Overview

  • Spacious Design – Seats 8 people with double benches on each side, ideal for families or entertaining friends.
  • Built for the Irish Climate – Thermowood exterior naturally resists rain, damp, and seasonal changes, wrapped with stainless steel bands for adjustability when needed.
  • Luxury Interior – Smooth Alderwood benches, backrests, and heater guard stay cool to the touch and enhance the sauna’s aesthetic and ensures comfort and longevity.
  • Modern & Stylish – 8mm black tinted tempered glass frontage connects your sauna to the outdoors whilst preserving privacy.

Why use Thermowood in a Sauna?

Thermowood is timber that has undergone treatment at high temperatures, typically between 180°C and 230°C. This specific process eliminates moisture and provides natural resistance against decay. To maintain its rich appearance, we suggest applying a wood preservative stain to the exterior. Additionally, Thermowood acts as an excellent insulator, which helps the cabin retain heat effectively and lowers energy consumption.

Stainless Steel Adjustable Bands

To ensure the cabin remains structurally sound, it is secured with two adjustable stainless steel bands. These provide vital reinforcement, keeping the timber panels in position while allowing the wood to naturally expand and contract within the changing climate of Northern Ireland. Being resistant to corrosion, the stainless steel ensures lasting durability and a polished finish that suits the contemporary design.

Alderwood Benches

The interior benches, backrests, and heater guards are crafted from Alderwood. This material remains smooth and cool to the touch, providing the highest level of comfort and longevity inside your sauna.

Panoramic Glass Front – Light, Views & Serenity

An 8mm black tinted tempered glass front offers a sleek and modern aesthetic while providing a peaceful view of your garden or patio. This design allows plenty of natural light into the space to create an open and inviting feel, while the tint ensures your privacy is preserved.

Accessories

Upgrade your experience with our premium black accessory kit:

  • An aluminium bucket and ladle featuring an Alderwood handle.

  • An aroma essence bowl for your preferred sauna fragrances.

  • A double-dial hygrometer and thermometer.

  • A sand timer to help you keep track of your session.

Delivery Information

  • Our team of professional joiners will assemble your sauna in your garden or outdoor space. Providing peace of mind with full onsite warranty. 
  • Some site preparation is required such as a firm, level base to build upon. Our friendly sales team can offer help and advice on ground preparation.
  • For electric models, a qualified electrician is required for connection. Our team can advise on the best setup for your home.

Choose your Sauna Heater

One of the first steps in planning your sauna is selecting the most suitable heat source. An electric heater provides modern ease with simple temperature adjustments at the touch of a button, making it perfect for an effortless wellness routine. For those who prefer a more traditional approach, a wood-burning heater delivers a genuine, deep heat along with the relaxing, aromatic atmosphere of a real fire.

Deciding between an electric or wood-burning model depends on your personal taste, the space you have available, and the practicalities of installation. If you are unsure which option is right for your home, contact the Aquasun Wellness team today for professional guidance and all the answers you need.

HUUM Hive 12kW

  • Power & Heating Capacity: 12 kW output for rooms 12–25 m³
  • Stone Capacity: Holds 250 kg (551 lbs) of stones
  • Design & Mounting: Floor-mounted stainless steel pillar
  • Control & Smart Features: Requires UKU control with WiFi and app capability
  • Key Features: Includes adjustable legs and air tunnel for faster heating

Humm Hive Woodburning Stove

  • Power Output: 13 kW
  • Heating Capacity: For sauna rooms from 6–13 m³ (212–459 cu ft)
  • Stone Capacity: Holds 90 kg (approx. 198 lbs) of sauna stones
  • Design & Installation: Floor-mounted, beehive-shaped stainless steel stove
  • Key Features: Includes a 5mm stainless steel flame tamer; max log length 300mm

Harvia M3 black Wood burning heater

  • Power Output: 16.5 kW
  • Heating Capacity: For sauna rooms from 6–13 m³
  • Stone Capacity: Holds 30 kg of sauna stones
  • Design & Installation: Floor-mounted steel stove with a glass door
  • Key Features: Includes an ash box and adjustable feet
Cube 324 XL

Specification

Seating capacity

8 Person

Dimensions

3.05m x 2.4m

Heater

6 kw Harvia Heater with built-in controls and stones. 30 amp supply.

Material

Thermowood—a heat treated timber which absorbs less moisture and is more resistant to the elements.

Accessories

Internal reading lights, ambient multi-colour backrest light, bucket and ladle, sand timer and hygrometer / thermometer.

Benefits of Saunas

Detoxification

Saunas help your body naturally flush out toxins through sweating. As your core temperature rises, blood vessels expand, circulation improves, and your body releases built-up impurities through the skin.

Regular sessions can leave you feeling lighter, refreshed, and cleansed — a simple yet powerful way to support your body’s natural detox process.

Muscle Recovery & Pain Relief

Heat therapy relaxes muscles, eases tension, and improves blood flow to tired or sore areas. This can reduce stiffness and speed up recovery after exercise or physical work.

It’s also known to help with chronic pain conditions such as arthritis or back pain, offering soothing, drug-free relief.

Stress Reduction & Mental Clarity

The gentle heat of a sauna helps calm the nervous system and reduce stress hormones like cortisol. The quiet, warm environment encourages deep relaxation and mindfulness.

Many people report clearer thinking and an improved mood after each session — like a mental reset for the body and mind.

Improved Circulation & Heart Health

Sauna use mimics the effects of light cardiovascular exercise. As your heart rate rises and blood vessels expand, circulation improves and oxygen delivery to muscles and organs increases.

Research suggests that regular sauna bathing may support heart health, helping lower blood pressure and improve vascular function over time.

Skin Health & Glow

The heat from a sauna opens pores and boosts blood flow to the skin, promoting natural cleansing and cell renewal.

After each session, you’ll notice a healthy glow as impurities are flushed out and new, oxygen-rich blood nourishes the skin’s surface.

Better Sleep & Recovery

A sauna session before bed can help your body wind down for a deeper night’s rest. As your core temperature cools afterwards, it signals your body to enter sleep mode naturally.

Combined with its relaxation benefits, sauna use can improve sleep quality, leaving you feeling restored and energised the next morning.

Get a quote for the Cube 324 XL

Get in touch with one of our friendly team in our Dublin showroom.

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