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Personal adviceAdvice
Configure your sauna

Create your Cube.

Choose your model, then select the glass, controls and extras.

Choose your model and finish. Your price stays in view.

Order before 1 November 2026: Glass control and two Bluetooth speakers included as a gift. Save €739 incl. VAT.

Which size suits you?

Compare the sizes

Choose what you are looking for. You can change the size afterwards.

This helps you choose; we assess whether the sauna fits your location during the site assessment.

Four sizes at the same scale

Compare the external dimensions and bench length. The 300 adds a shower area; its sauna space matches the 200.

Cube 170
Cube 170 from above, showing two benches, the wall-mounted HUUM DROP and the entrance. Dimensions are listed below the drawing. Upper bench Lower bench Door HUUM DROP Wall-mounted Glass front

Up to 4 people · compact seating

External dimensions (W × D × H)
172 × 210 × 240 cm
Bench length
Approx. 146 cm · indicative
Cube 200
Cube 200 from above, showing two benches, the wall-mounted HUUM DROP and the entrance. Dimensions are listed below the drawing. Upper bench Lower bench Door HUUM DROP Wall-mounted Glass front

4 people · two bench levels

External dimensions (W × D × H)
202 × 210 × 240 cm
Bench length
176 cm
Cube 240
Cube 240 from above, showing two benches, the wall-mounted HUUM DROP and the entrance. Dimensions are listed below the drawing. Upper bench Lower bench Door HUUM DROP Wall-mounted Glass front

5 people · space to stretch out

External dimensions (W × D × H)
241 × 210 × 240 cm
Bench length
215 cm
Cube 300
Cube 300 from above, showing two benches, the wall-mounted HUUM DROP and the entrance. Dimensions are listed below the drawing. Shower Upper bench Lower bench Door HUUM DROP Wall-mounted Glass front

4 people · separate shower area

External dimensions (W × D × H)
300 × 210 × 240 cm
Bench length
176 cm

Schematic top view with the left-hand door as seen from outside. The right-hand door mirrors the whole layout. Not a technical dimension or foundation drawing.

You can change your model later.

Dimensions & materials

Allow extra space beyond the external dimensions for the door, maintenance and installation. We assess this with you.

Outside
19 mm charred timber
Inside
A-grade thermo-aspen · knot-free, thermally modified aspen
Floor
Thermo-pine · thermally modified pine
Glass
8 mm toughened glass
Benches
Upper bench 60 cm deep · lower bench 50 cm deep
Insulation
30 mm FF-PIR panels
Base
Powder-coated galvanised steel beams · adjustable galvanised feet
Roof
Three-layer roof with water-resistant plywood and roofing rubber · sloping for drainage
Door fittings
Stainless steel hinges and lock
Heater & controls
HUUM DROP 9 kW with olivine diabase stones · UKU panel and Wi-Fi through the HUUM app included
Lighting
LEDs beneath the upper bench and behind the backrest · starry ceiling optional
Explore the finish up close
Included & additional costs

Includes a 9 kW HUUM heater, Wi-Fi control through the HUUM app, delivery on the Dutch mainland and installation by our own team.

Crane hire is always charged separately. Electrical connection, decking and additional work are available on request at extra cost.

Discuss my configuration
About your order

Practical questions

Ask a question
How much space should I allow at my site?

External dimensions (width × depth × height): Cube 170: 172 × 210 × 240 cm; Cube 200: 202 × 210 × 240 cm; Cube 240: 241 × 210 × 240 cm; Cube 300 with shower area: 300 × 210 × 240 cm. The 200 seats 4 and the 240 seats 5. The 170 seats up to 4 with compact seating. The 300 has the same sauna space as the 200 and seats 4. Installation and maintenance clearances are assessed separately.

How do I choose the door side?

Choose whether the door is positioned on the left or right of the glass front, as viewed from outside. Consider the access path and space to open the door. We review the layout with you during the site assessment.

How much privacy does mirrored glass provide?

Reflection depends on the difference in light inside and outside. If it is brighter inside, the interior may be visible. Mirrored glass does not guarantee complete privacy; consider sightlines from your garden as well.

What is included with the Cube 300 shower area?

The Cube 300 has the same sauna space as the Cube 200, for 4 people, plus a separate shower area. The shower and provision for a water connection are included. We discuss the water supply and connection at your location beforehand; additional work is quoted on request.

When can my Cube be delivered and installed?

First deliveries from November 2026. Reserve your Cube now; the models arrive at Welsa on 1 November. We agree your installation date personally, based on your configuration, location and our schedule.

How long does heating take and how much electricity does the sauna use?

HUUM gives around one hour as a guideline for a well-insulated sauna with a correctly sized heater. This is general guidance, not a measured heating time for every Cube. Outdoor and starting temperatures, the target temperature, glass and ventilation affect the time.

The heater is rated at 9 kW. One uninterrupted hour at full power mathematically equals 9 kWh. This is not consumption per sauna session: the controller switches heating and actual consumption depends on conditions and duration.

Can I preheat the sauna remotely?

Yes. Wi-Fi control through the HUUM app is included. You can start the sauna remotely and set the temperature. The sauna needs an internet connection and you must confirm on the UKU controller that it is safe to start. Opening the door may require a new confirmation.