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SKU:KOVE-CUBE4

KOVE Cube Sauna 3–4 Person Outdoor Sauna – Premium Spruce Wood, 6kW Harvia Heater, Modern Cube Design

KOVE Cube Sauna 3–4 Person Outdoor Sauna – Premium Spruce Wood, 6kW Harvia Heater, Modern Cube Design

Regular price £4,299.00
Regular price £4,299.00 Sale price £4,999.00
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  • Official Distributor
  • Backed By Manufacturer's Warranty
  • Free UK Delivery

How It Works

Step inside, set your preferred temperature, and enjoy a deep, restorative heat session. All our saunas are easy to use, low-maintenance, and designed for maximum comfort.

Our Guarantee

We stand by the quality of our saunas. That’s why every purchase comes with a full manufacturer’s warranty for complete peace of mind.

Shipping & Delivery

Enjoy free, fast delivery across the UK. Our expert team will arrange safe curbside or in-home delivery, with optional professional assembly available.

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Description

Premium Outdoor Sauna with Genuine Harvia Heater

Create your own outdoor wellness space with the KOVE Cube Sauna – 3–4 Person, a premium traditional outdoor sauna designed for comfortable shared sessions, authentic heat and year-round UK use.

Crafted from premium Canadian Spruce and supplied with a genuine Harvia 6kW electric sauna heater as standard, the KOVE Cube combines authentic sauna performance with contemporary architectural design. Its spacious interior, panoramic glazed frontage and waterproof roof system make it equally suited to private gardens, home gyms and professional wellness environments.

Key Features

Contemporary Cube Design, Maximum Interior Space

The cube-style construction maximises usable interior volume, providing generous bench seating and excellent headroom without increasing the overall footprint. Straight walls create a spacious, comfortable environment, while the large glazed frontage allows natural light into the cabin for a bright, relaxing sauna experience.

Its clean, self-supporting structure avoids unnecessary external banding and bulky trims, creating a refined architectural appearance that complements both traditional and contemporary outdoor spaces.

  • Comfortably accommodates 3–4 adults
  • Excellent headroom and generous bench seating
  • Panoramic glazed frontage for a bright interior
  • Clean architectural styling with no visible exterior banding

Crafted from Premium Canadian Spruce

Every KOVE Cube Sauna is built from carefully selected Canadian Spruce, a timber widely used in traditional sauna construction for its strength, stability, natural insulation and attractive pale finish.

Canadian Spruce helps create the bright, calming interior associated with Nordic-style saunas while providing excellent durability for long-term outdoor use throughout the changing British seasons.

  • Solid Canadian Spruce construction
  • Excellent natural insulation and heat retention
  • Strong structural stability
  • Smooth internal bench seating
  • Premium timber finish for residential and professional settings

Timber is a natural material. Variations in grain, knots and colour are normal and form part of the unique character of every sauna.

Powered by a Genuine Harvia Heater

The KOVE Cube Sauna – 3–4 Person is supplied with a genuine Harvia 6kW electric sauna heater as standard.

Designed by Harvia, one of Finland's most respected sauna brands, the heater delivers reliable performance, excellent heat distribution and the authentic stone-heated sauna experience that has made Harvia trusted worldwide for more than 70 years.

  • Genuine Harvia 6kW electric sauna heater
  • Powerful, even heat distribution
  • Suitable for traditional dry sauna sessions and steam over the stones
  • Designed to reach typical sauna temperatures in approximately 45 minutes under normal conditions

Actual heat-up times will vary depending on ambient temperature, electrical supply, ventilation, initial cabin temperature and how frequently the door is opened.

Electrical Requirements

A fixed-wired electrical connection is required. No standard plug is supplied. Installation must be completed by a qualified electrician in accordance with current UK regulations, including Part P and BS 7671 where applicable.

Weather-Protected Roof for Year-Round UK Use

The KOVE Cube features a waterproof membrane with timber roof slats, providing dependable protection from rain and moisture while maintaining its clean architectural roofline.

  • Waterproof roof membrane
  • No asphalt shingles
  • Designed specifically for year-round UK outdoor use
  • Low-maintenance roof construction

Panoramic 8mm Tempered Glass Front

The full-width glazed frontage uses 8mm tempered safety glass, creating a bright, spacious interior while maintaining strength, insulation and durability. The panoramic design makes the sauna feel open and inviting while complementing modern outdoor spaces.

Complete Sauna Starter Kit Included

Everything required to enjoy an authentic traditional sauna experience is included.

  • Wooden bucket and ladle
  • Harvia sauna stones
  • Sandglass timer
  • Hygro-thermometer (temperature and humidity gauge)
  • Sauna light
Installation & Site Requirements

The KOVE Cube Sauna is supplied flat-packed and designed for straightforward outdoor assembly with clear installation instructions.

  • Requires a level, solid base such as concrete, paving slabs or suitably reinforced decking
  • Requires a qualified electrician for heater connection
  • No plumbing required
  • Delivered flat-packed with assembly instructions
  • Freestanding outdoor installation

Assembly is typically completed by two to three capable people within a day, although timings will vary depending on experience, access and site conditions. We also recommend using a tradesman if you are not experienced in DIY. Unfortunately, we cannot accept returns if the installation is faulty.

Delivery is kerbside only. Please ensure suitable access and adequate assistance are available to move the packaged components to the installation area.

Outdoor Use, Timber Treatment & Maintenance

The KOVE Cube Sauna is designed specifically for outdoor environments and is suitable for year-round UK use when installed and maintained correctly.

Like any premium timber outdoor structure, periodic inspection and exterior treatment will help preserve its appearance and maximise its service life.

  • Inspect external timber and roof periodically
  • Keep the base area well drained
  • Reapply a suitable exterior timber treatment when required
  • Clean the interior using products suitable for untreated sauna timber

Recommended Exterior Finish

We recommend applying a suitable exterior wood oil shortly after installation. Many customers choose Danish Oil, which enhances the natural grain while adding protection from the elements.

Please note that Danish Oil will naturally deepen the colour of the timber over time. Alternative exterior oils, stains or paints may also be used depending on your preferred finish. Because appearance is a personal choice, the sauna is supplied untreated.

Do not apply conventional paint, varnish or unsuitable chemical treatments to the internal benches or interior sauna surfaces.

Is the KOVE Cube Sauna Right for You?

The KOVE Cube is an excellent choice if you're looking for:

  • A contemporary outdoor sauna with clean architectural styling
  • Generous internal space within a compact footprint
  • Premium materials and genuine Harvia heating
  • Authentic traditional sauna performance
  • Reliable year-round outdoor use

Ideal For

  • Outdoor garden and patio installations
  • Shared home wellness and recovery routines
  • Post-workout recovery and contrast therapy
  • Home gyms and wellness spaces
  • Hotels, gyms, studios and boutique wellness centres
Key Specifications
  • Brand: KOVE
  • Model: KOVE-CUBE4
  • Capacity: 3–4 People
  • External Dimensions: 2000mm (W) × 1800mm (D) × 2100mm (H)
  • Internal Height: Approximately 1970mm (see product images for further dimensions)
  • Material: Solid Canadian Spruce
  • Heater: Genuine Harvia 6kW electric sauna heater
  • Glass: 8mm tempered safety glass front
  • Roof: Slatted timber roof with waterproof membrane
  • Design: Cube-style outdoor sauna with no porch or external banding
  • Installation: Freestanding outdoor unit supplied flat-packed
  • Electrical Supply: Fixed-wired connection by a qualified electrician
  • Plumbing: Not required
  • Use: Outdoor residential and suitable professional environments
  • Warranty: 2 years, subject to terms and conditions
FAQs

Is This Suitable for Commercial Use?

The KOVE Cube Sauna is suitable for many commercial environments, including boutique gyms, hotels, recovery studios and wellness centres, subject to expected usage levels and correct installation.

If you're planning to install the sauna in a commercial setting, our team will be happy to recommend the most suitable model and heater specification for your requirements.

Why Choose KOVE?

KOVE designs professional-grade wellness equipment that combines premium materials, thoughtful engineering and timeless design. Every outdoor sauna is built for dependable performance, fitted with a genuine Harvia heater and backed by UK-based customer support.

Whether it's part of your daily recovery routine, a place to unwind after work or the centrepiece of your outdoor wellness space, the KOVE Cube Sauna has been designed to deliver an authentic sauna experience for years to come.

Balance by Design.

  • Relax, Recharge & Restore

    Step into soothing warmth that melts away stress while promoting deep relaxation.

  • Wellness Backed by Science

    Regular sauna use supports circulation, muscle recovery, and natural detoxification.

  • Luxury, Built to Last

    Crafted with premium materials and modern design, every sauna delivers both performance and elegance.

The Results Speak for Themselves

Our sauna owners consistently share how regular use has transformed their daily lives — from improved wellness to moments of pure relaxation.

87%

said they feel more relaxed and less stressed

82%

reported a greater sense of wellbeing

79%

noticed better sleep and faster recovery

  • A true game-changer for my wellbeing.

    Using my sauna 3–4 times a week has helped me unwind, sleep better, and feel less stressed overall.

    James.R, London

  • Feels like having a private spa at home.

    The craftsmanship is outstanding, and every session feels like pure luxury. Worth every penny.

    Sophie.M, Manchester

  • Recovery has never been this easy.

    After workouts, 20 minutes in the sauna leaves me refreshed, relaxed, and ready for the next day.

    Daniel.K, Bristol

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FAQ's

Do the saunas come with a warranty?

Yes - every sauna is supplied with a manufacturer’s warranty for your peace of mind. Warranty length varies by model, and details are shown on each product page.

What’s the difference between infrared and traditional saunas?

Infrared saunas use gentle infrared heat to warm the body directly, while traditional saunas heat the air around you. Both deliver deep relaxation and wellness benefits - it’s down to personal preference.

Is installation difficult?

Most of our saunas are designed for easy assembly at home, and we also offer a professional installation service if you’d prefer a hands-free setup.

How will my sauna be delivered?

All saunas are delivered securely, packaged for protection, and shipped with trusted couriers. Larger models may arrive on a pallet, with optional professional placement and assembly available.

How much space do I need?

We offer saunas in a variety of sizes - from compact 1–2 person cabins to spacious 6–8 person units. Product dimensions are listed on each page to help you choose the right fit.

How hot do the saunas get?

Infrared saunas typically reach 40–65°C, while traditional saunas range between 70–100°C. Both allow you to adjust settings for a comfortable session.

What health benefits can I expect?

Regular use may help with stress relief, muscle recovery, improved circulation, detoxification, and better sleep - benefits backed by wellness research and customer feedback.

  • Free & Reliable Delivery

    Every sauna shipped securely across the UK.

  • Official Distributor

    Genuine products with full manufacturer’s warranty.

  • Expert UK Support

    Friendly team ready to help with any questions.

  • Secure Payments

    Checkout with confidence using encrypted payments.