KOVE Cube Sauna 3–4 Person Outdoor Sauna – Premium Spruce Wood, 6kW Heater, Modern Cube Design
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Key Information
Delivery Time
FREE Next Working Day Delivery
Warranty
2 Year
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)
- 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.
Delivery
Delivery & Shipping
Free UK Mainland Delivery
Most KOVE products are delivered FREE on the next working day to UK mainland postcodes when ordered before 3:00pm (Monday–Friday).
Orders placed after 3:00pm, on Fridays after the cut-off, or over the weekend will be dispatched on the next working day. Delivery times shown are estimates and may occasionally be affected by courier logistics, weather, or other circumstances outside of our control.
Delivery Times
- Deliveries are made Monday–Friday, 08:30–18:00
- Delivery is kerbside / threshold only
- Drivers do not unpack or position items
- Timed delivery options may be available at an additional cost
Large & Bulky Items
Many KOVE products, including saunas and ice baths, are delivered on pallets.
- Please ensure the product will fit through your access points
- Please have assistance available to move the item indoors
Missed Deliveries
- The first delivery attempt is free on orders over £100 (ex VAT)
- Missed deliveries may incur a re-delivery charge of £45 + VAT
- Drivers may call ahead where possible, but this is not guaranteed
Checking Your Order
Please inspect your delivery carefully before signing.
- Refuse delivery if any damage is visible
- Any damage must be reported within 24 hours of delivery
- Signing for the delivery confirms acceptance
International Delivery
We deliver to selected European countries. For international shipping quotes, contact
hello@kove-designs.com
with the product and destination.
Need Help?
Questions about delivery, access, or lead times? Email us at
hello@kove-designs.com
before placing your order.
Warranties
Consumer Customers (B2C – UK)
All KOVE products come with a 2-year parts-only warranty, in addition to your statutory rights under UK consumer law.
- Covers replacement parts for manufacturing defects
- Labour, call-out, and installation costs are not included
We also offer a 30-day money-back guarantee on unused, unopened products returned in their original packaging.
Return shipping costs apply.
Business Customers (B2B)
Business and trade purchases include a 2-year parts-only warranty.
- Covers replacement parts only
- Labour, installation, downtime, and consequential costs are excluded
- Returns accepted within 30 days for unused, unopened items (return shipping applies)
For full details, please see our Terms & Conditions and Warranty page.
