Cube 250 Nero Sauna
6 Person
See all 5-6 person saunasAn outdoor sauna ritual framed in glass. The sculptural cube in black-stained thermo-spruce, with room for six.
ETL & CE certified
Colour
Recommended configuration
Heat Source
Choose your heater
Estimated total. Final price confirmed by your stockist.
Electric
Harvia Cilindro
Output options
9 kW PC90 manual controls
- Reaches 60 to 70°C (mild heat)
9 kW PC90XW digital + Wi-Fi (Recommended)
- Heats up to 110°C
- Includes Harvia Fenix Wi-Fi control panel
Electric vs wood-fired
This cabin can be heated two ways. Pick the ritual that suits you:
- Electric (Harvia Cilindro). One-touch convenience with precise temperature control and optional Wi-Fi scheduling. Ready to bathe in 30 to 45 minutes, with no fuel or flue to manage.
- Wood-fired (Harvia Linear 18). The traditional experience, with the crackle and aroma of a real fire and a deep, enveloping heat. Needs no power supply, so it's ideal for off-grid gardens.
Both reach full löyly temperature. The choice comes down to convenience versus authenticity.
Wood-burning
Harvia Linear 18
Output options
14.3 kW (Recommended)
Electric vs wood-fired
This cabin can be heated two ways. Pick the ritual that suits you:
- Electric (Harvia Cilindro). One-touch convenience with precise temperature control and optional Wi-Fi scheduling. Ready to bathe in 30 to 45 minutes, with no fuel or flue to manage.
- Wood-fired (Harvia Linear 18). The traditional experience, with the crackle and aroma of a real fire and a deep, enveloping heat. Needs no power supply, so it's ideal for off-grid gardens.
Both reach full löyly temperature. The choice comes down to convenience versus authenticity.
- 2 Year Warranty
- Stockists Worldwide
A cube sauna for six
- Seats
- 6
- Setting
- Outdoor
- Heat
- Floor-standing electric
- Timber
- Thermo-spruce, aspen benches
The Cube 250 is the largest cube sauna for the garden we make, with seating for six. It keeps the rounded shape and full glass front of the smaller Cubes, with room for friends and family. If you need a sauna for 5 or 6 people, compare it with the Barrel 250 and the Traditional 220. Browse all our outdoor saunas, and see the cost to run a sauna this size.
Seats 6
Black-stained thermo-spruce
Full double-glazed glass front
Panoramic window
Harvia electric or wood-fired heater
Black shingle roof
- 40mm thermo-spruce frame, black-stained
- Double-glazed full glass front panel
- 8mm tempered glass sauna door
- Half double-glazed panoramic window
- 2 × thermo-aspen benches
- Thermo-aspen duckboard flooring
- Sauna ventilation valve
- 2 × LED lights with switch
- Bituminous roof shingles
- 3 × foundation beams
- 2 × metal frame bands
Heat Source
This sauna is independently tested and certified to meet the electrical-safety standards of both North America and Europe — so you get the same tested build wherever it is installed.
- ETL Listed — conforms to US & Canadian safety standards
- CE marked — European conformity
- Tested by an accredited independent laboratory
Thermo-Aspen Benches
Smooth, splinter-free thermo-aspen benches and floor inside a heat-treated spruce shell.
Double-Glazed Glass Front
Full-height toughened glass, double-glazed to keep the heat in and the weather out.
Ambient LED Lighting
Dimmable warm LED strip lighting for a soft, restful glow.
The Hekla Difference.
The Cube is built from thermo-spruce, heat treated so it stays stable through rain and frost. Inside, the benches and floor are thermo-aspen. It is smooth, resin-free and comfortable against the skin.
Customer Reviews
Improved sleep
Eased muscles
Heart Health
Before you buy
-
Guide
Garden Sauna Guide
How to plan a garden sauna in the UK: where to put it, the base it needs, electric or wood-fired, the planning rules in each nation and how the build works.
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Guide
Sauna Buying Guide
How to choose a home sauna: indoor or outdoor, traditional or infrared, which Harvia heater and controls to specify, what size you need and how to prepare your site.
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Guide
How Much Does a Home Sauna Cost?
From £200 infrared cabins to £25,000 bespoke builds. Most people spend £3,000 to £9,000 on a home sauna. Real 2026 prices by tier and the costs kits leave out.
FAQs
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