KOVE Cube Sauna – 3–4 Person Premium Outdoor Sauna with 6kW Heater

Premium Outdoor Sauna for Home & Professional Wellness

Create a modern outdoor wellness space with the KOVE Cube Sauna – 3–4 Person, a premium cube-style outdoor sauna designed for efficient heating, clean aesthetics, and year-round UK use.

Built as a step up from entry-level cube saunas, the KOVE Cube focuses on what matters most: internal comfort, dependable weather protection, and a refined finish that looks right in contemporary gardens, patios, and professional wellness environments.

Modern Cube Design for Comfortable Shared Sessions

The cube-style construction maximises usable interior volume, delivering excellent headroom and generous bench space for couples, families, and small groups. The large glazed front allows natural light into the cabin while maintaining heat efficiency and a clean, enclosed sauna feel.

Unlike cheaper cube saunas that rely on visible banding, bolt-on trims, or lower-grade exterior finishing, the KOVE Cube is built with a clean, self-supporting structure for a more refined look and long-term stability.

• Comfortable layout for 3–4 people
• Excellent headroom and bench depth for longer sessions
• Clean-lined exterior suited to modern outdoor spaces

Solid Spruce Wood Construction

Crafted from high-quality spruce wood, the KOVE Cube Sauna delivers excellent insulation, structural stability, and long-term outdoor durability. Spruce is widely used in traditional sauna construction thanks to its heat retention, resistance to temperature change, and natural aesthetic.

• 8mm tempered safety glass front for strength, insulation, and visibility
• Smooth internal bench seating designed for comfort during longer sessions
• Premium timber finish suited to residential and professional settings

Natural variations in wood grain and colour are normal and part of the sauna’s character.

Weather-Protected Roof Built for UK Outdoors

Unlike lower-cost cube saunas that use exposed asphalt shingles or felt roofing, the KOVE Cube features a concealed waterproof membrane beneath the roof slats. This provides dependable protection from rain and moisture while keeping the roofline clean and architectural.

• Waterproof membrane hidden beneath roof slats
• No exposed felt or asphalt shingles
• Designed for year-round UK outdoor use

Efficient 6kW Electric Sauna Heating

The KOVE Cube Sauna – 3–4 Person is supplied with a 6kW KOVE professional-grade electric sauna heater as standard, delivering reliable, dry heat for authentic traditional sauna sessions.

• 6kW heat output ideal for 3–4 person cube cabins
• Even temperature distribution throughout the cabin
• Typical heat-up time of approximately 45 minutes, depending on ambient conditions

Harvia Heater Upgrade (+£199)

If you prefer a premium brand upgrade, the sauna can also be specified with a Harvia electric sauna heater for £199. Select this option from the dropdown below the add to cart.

Electrical Requirements

Fixed-wired connection required. No standard plug supplied. Heater installation must be carried out by a qualified electrician in accordance with UK regulations (Part P / BS 7671).

Included Sauna Accessories

Everything you need for a traditional sauna experience is included:

• Wooden bucket and ladle
• Sandglass timer
• Hygro-thermometer (temperature & humidity gauge)
• Explosion-proof sauna light

Installation & Requirements

The KOVE Cube Sauna is designed for straightforward outdoor installation with minimal site preparation.

• Requires a level, solid base (concrete, patio slabs, or decking)
• Requires a qualified electrician for heater connection
• No plumbing required
• Delivered flat-packed with clear assembly instructions

Assembly is typically completed by two to three people in a few hours.

Delivery is kerbside only. Please ensure suitable access and adequate manpower is available on arrival.

Outdoor Use, Wood Treatment & Maintenance

Designed specifically for outdoor environments, the KOVE Cube Sauna is suitable for year-round UK use.

• Weather-protected roof construction for reliable rain protection
• Minimal ongoing maintenance required
• Optional exterior oiling can be used to preserve or enhance appearance

Recommended Finish on Installation (Exterior Only)

We recommend applying a suitable exterior wood oil on installation (exterior only). Many customers choose Danish oil as a natural option that enhances the wood grain while adding protection from the elements.

Please note that Danish oil will darken the wood and deepen its tone over time. Other oils, stains, or finishes can be used depending on your preferred aesthetic — and some customers even choose to paint their sauna.

Because finish preference is personal, the sauna is not pre-oiled.

Is a Cube Sauna Right for You?

A cube sauna is an excellent choice if you’re looking for:

• A modern, architectural sauna design
• Maximum internal space in a clean footprint
• A premium alternative to asphalt-roof cube saunas
• Reliable performance for shared home sessions or professional settings
• Year-round outdoor sauna use in the UK

If you prefer a more traditional look with curved airflow and a porch area, a barrel sauna may suit you better. If clean aesthetics, interior space, and build quality are the priority, the Cube is the ideal choice.

Ideal For

• Outdoor garden and patio sauna installations
• Shared home wellness and recovery routines
• Post-workout recovery and contrast therapy
• Hotels, gyms, studios, and wellness centres
• Year-round outdoor sauna use

Key Specifications

• Brand: KOVE
• Model: KOVE-CUBE4
• Capacity: 3–4 People
• External Dimensions: 2000mm (W) × 1800mm (D) × 2100mm (H)
  
• Internal Height: 1970mm (more dimensions in images)
• Material: Solid spruce wood
• Heater: 6kW KOVE electric sauna heater (6kW Harvia upgrade available)
• Glass: 8mm tempered safety glass front
• Roof: Slatted roof with concealed waterproof membrane
• Design: Cube-style outdoor sauna (no porch, no banding)
• Installation: Freestanding outdoor unit
• Use: Outdoor residential & professional

Why Choose KOVE?

KOVE designs professional-grade wellness equipment built for real-world use. No influencer pricing, no unnecessary shortcuts — just reliable performance, thoughtful engineering, and long-term UK support.

Backed by KOVE’s 2-year warranty and UK-based support.

Modern design. Serious heat. Built to last.