KOVE Cube Sauna 3–4 Person Outdoor Sauna – Premium Spruce Wood, 6kW Harvia Heater, Modern Cube Design
Free UK Delivery
Free standard delivery on all orders to UK mainland. Delivered within 5-10 working days.
Easy Returns 30-day return policy
Easy returns within 30 days of delivery.
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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.
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
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.
Shipping & Delivery
Delivery Included for Mainland UK Orders
Delivery is included in the displayed product price for mainland UK orders. No additional delivery charge is added at checkout.
Delivery Timeframes
All items: delivered within 5-10 working days of your order being placed.
Order processing: All orders are processed and dispatched within 1-2 working days of payment confirmation. This time is included in the 5-10 working days above. You will receive a dispatch confirmation email with tracking details once your order is on its way.
Large & Oversized Items
Furniture, large garden structures, and fitness equipment are
delivered via specialist courier.
- You will be contacted within 24 hours of dispatch to arrange
a delivery window.
- Two-person delivery is available on heavy items — email
customer.care@homesplex.com before ordering if required.
Scottish Highlands, Northern Ireland, Isle of Man & Channel Islands
Additional surcharges may apply. Any applicable charge will also
be noted on the relevant product page. Please contact us before
ordering at customer.care@homesplex.com for a delivery quote.
Large and Bulky Item Returns
We want you to be completely satisfied with your purchase. Here is how returns work for large items:
- Cancellation and return window: you can cancel within 30 days of delivery . Faulty goods can be rejected within 30 days of delivery
- Condition: Items should be unused, in original packaging, and in resalable condition
- How to start a return: Contact us at customer.care@homesplex.com within 30 days of delivery with your order number and reason for return
- Return shipping: For large and bulky items (furniture, gazebos, AC units), return shipping costs are the responsibility of the customer unless the item is faulty, damaged on arrival or not as described
- Faulty or damaged items: Please contact us as soon as possible, ideally within 48 hours of delivery with photos, and we will arrange a replacement or full refund at no cost to you. This does not limit your legal rights
- Refund processing: Refunds are issued to the original payment method within 14 days of receiving the returned item
- Questions? Email customer.care@homesplex.com — we respond within one business day.
Returns & Refunds
Our Returns & Refund Policy
You can cancel your order for any reason within 14 days of the day you receive your goods, and you then have a further 14 days to send them back to us. If your goods are faulty, you can reject them for a full refund within 30 days of delivery.
How to Return an Item
- Email customer.care@homesplex.com or call 03330 904 195 within 14 days of receiving your order, with your order number and the items you want to return.
- We will respond within 2 working days with return instructions.
- You then have 14 days from telling us to return the goods. Repackage the item carefully in its original packaging where possible.
- Send via a tracked delivery service and retain your proof of postage.
- We will refund you within 14 days of receiving the goods back (or of receiving proof that you have sent them, if earlier).
Conditions for Returns
- Items should be unused, in their original condition and packaging, and you must take reasonable care of them until they reach us.
- We may reduce your refund if the goods have been used or handled beyond what is needed to inspect them and their value has fallen as a result.
- Return postage costs are the customer's responsibility unless the item is faulty, not as described, or we sent the wrong item.
- Made-to-order, made-to-measure or personalised items cannot be returned unless faulty. Sealed items that are unsuitable for return for health or hygiene reasons cannot be returned once unsealed.
- No restocking fees are charged on any return.
Large & Heavy Items
For large items such as furniture, fitness equipment, garden structures and massage chairs, please contact us at customer.care@homesplex.com before attempting to return. Due to the size and weight of these products:
- We will arrange a specialist collection service on your behalf
- Items should be disassembled and repackaged in their original packaging before collection
- Collection is free of charge for faulty or incorrectly supplied items
- For unwanted large items, a collection charge may apply — we will confirm this before proceeding and you are under no obligation to proceed
Faulty or Damaged Items
Please inspect your goods on delivery. If anything is damaged, faulty or not what you ordered, contact us at customer.care@homesplex.com as soon as possible — ideally within 48 hours of delivery, with your order number and clear photographs — so that we can resolve it quickly. This is to help us act promptly and does not limit your legal rights.
You can reject faulty goods for a full refund within 30 days of delivery. After that, you may be entitled to a repair, replacement or partial refund, and your rights under the Consumer Rights Act 2015 continue for up to 6 years (5 years in Scotland). We arrange and pay for the collection of faulty goods.
Refunds
Refunds are issued to your original payment method, and include standard delivery charges. Please allow a few working days for the refund to appear in your account after we have processed it; card refund times may vary depending on your bank or card provider.
Cancellations Before Dispatch
If you wish to cancel your order before it has been dispatched, please contact us immediately at customer.care@homesplex.com or call 03330 904 195. If the order has already left our warehouse, our standard return process will apply.
Your Statutory Rights
This policy does not affect your statutory rights under the Consumer Rights Act 2015 or the Consumer Contracts Regulations 2013.
Questions?
Email us at customer.care@homesplex.com or call 03330 904 195 — we're happy to help.