EOS 46.U — manufacturer's product shot 1

Manufacturer product image

EOS 46.U — sauna heater

EOS

Short answer: EOS 46.U is a sauna heater made by EOS Saunatechnik in Germany. Sauna Dekor sizes, supplies and installs it in the saunas and steam rooms we build; the product and its certificates are the manufacturer's.

Concealed installation — a heater that sits behind the bench.

Category: Sauna heaters
Series: Commercial — small scale
Power options: 6 kW · 7,5 kW · 9 kW · 12 kW
Manufacturer: EOS Saunatechnik · Germany
Capacity: Selected by cabin volume
Warranty: 24 months — with Sauna Dekor installation

Request a quote

Model note

What the EOS 46.U is

The 46.U is a horizontal body hidden behind the bench: 22 cm between the partition wall and the sauna wall is enough, and the heater itself is 20 cm deep. The space gained goes straight back into the bench. There is no risk of touching the heater, and the guard grille fitted to the top edge of the partition wall catches objects falling from above. Löyly is possible: the funnel and hose come with the unit, and the channel inside spreads the water across the full width of the body. Inner and outer shells are stainless, with a dust and water tray underneath. The 46.U takes 15 kg of stones and the Compact version 10 kg. Coverage runs from 6 kW for 6–8 m³ to 12 kW for 14–18 m³; the 12 kW needs a PEB 10. The Combi version has a 1.5 kW evaporator and a 5-litre tank.

Technical specifications

EOS 46.U specifications

Category	Sauna heaters
Series	Commercial — small scale
Power options	6 kW · 7,5 kW · 9 kW · 12 kW
Manufacturer	EOS Saunatechnik · Germany
Capacity	Selected by cabin volume
Warranty	24 months — with Sauna Dekor installation
Electrical connection	400 V 3N ~ 50/60 Hz
Fuse protection (control unit)	3 x 16 A
Dimensions H/W/D, in cm	87 / 92 / 20 (46.U Compact) 87 / 112 / 20 (46.U) 100 / 112 / 20 (46.U Combi)
For sauna cabin size (6,0 / 7,5 / 9,0 / 12,0 kW)	6 – 8 m³ / 7 – 10 m³ / 9 – 14 m³ / 14 – 18 m³
Min. size air inlet and outlet (6,0 / 7,5 / 9,0 / 12,0 kW)	35 x 4 cm / 35 x 5 cm / 35 x 6 cm / 35 x 7 cm
Stone filling	10 kg (Compact) / 15 kg
Power extension required	No / PEB 10 (12.0 kW)
Compatible control units	EOS Econ 4 series · EOS Compact DC/HC series · EOS Compact D18/H18 series · EOS EmoStyle series · EOS EmoStyle Hi series · EOS U-Command · EOS EmoTouch 3 · PEB 10

Values: EOS Saunatechnik's published product information (read 23 October 2026). Dimensions, weights and supply figures not listed here are sent with the manufacturer's technical sheet.

Selection

How we find the right capacity

We work out the capacity from the cabin volume; the five steps below are done together at the quotation stage.

Start with the cabin volume

Basic rule: cabin volume (m³) × 1 kW. A 2 × 2 × 2.10 m cabin is 8.4 m³ and needs about 9 kW. This figure is a starting point, not the answer.

Add glass and uninsulated surfaces

Add 1.2 m³ to the volume for every m² of glass front, and about 1.2 m³ for every m² of uninsulated concrete or stone. In a cabin with a full glass front, the real requirement is thirty to forty percent above the bare volume.

Agree the power supply early

Above 9 kW a 400 V three-phase supply is required; for lower outputs the phase is chosen according to the heater's installation manual. The heater is fed on its own circuit, with its own fuse and residual current device.

State the usage intensity

A home cabin used two hours a day and a hotel cabin open for ten hours cannot use the same unit. For commercial use, heavy-duty (HD) units and a larger stone mass are chosen.

Choose the control together with the heater

The power a control unit can switch directly is limited; above that, a PEB power boost unit is needed. This is calculated at the quotation stage.

Why EOS

Five series, one ecosystem

The logic you set up in a home works in a hotel too.

Five series, one control family

The same control family runs from the Standard series up to the large commercial series. The logic you set up in a home works in a hotel too.

Modular control

Sauna, hammam, steam and infrared modules plug into the EmoTouch 3 unit. Four rooms are run from one panel, with no separate switchboard.

Open to building automation

With the KNX and Modbus module it connects to the hotel management system, and opening hours can be programmed centrally.

Safety as a separate line

Door contact, emergency button, heater guard and EOSafe are available as separate products. In a commercial facility they are not optional.

Spare parts stock

We keep spare parts in stock in Istanbul for the equipment we install. In a commercial facility, what keeps a cabin closed for months is waiting for parts.

Around 20 years with EOS

We have been installing EOS equipment for around 20 years, so we know from site work how each unit performs in each room volume.

On site: we fitted a 9.0 kW EOS 46.U in a yacht sauna — see the yacht sauna project.

Close alternatives: the EOS 46.U XL, the EOS 34.G HD, the EOS Herkules XL S120 HD.

Frequently asked questions

Who manufactures the EOS 46.U?

EOS Saunatechnik, in Germany. Sauna Dekor sizes, supplies and installs it; the product warranty and certificates are the manufacturer's.

Does Sauna Dekor install the EOS 46.U?

Yes. We size, supply and install the EOS 46.U as part of the saunas and steam rooms we design, manufacture and build, in the UAE, Saudi Arabia, Qatar and other markets.

What are the main specifications of the EOS 46.U?

Category: Sauna heaters; Series: Commercial — small scale; Power options: 6 kW · 7,5 kW · 9 kW · 12 kW; Manufacturer: EOS Saunatechnik · Germany. Values are from the manufacturer's published product information.

Sources

EOS

Close alternatives

EOS 46.U XLSauna heaters EOS 34.G HDSauna heaters EOS Herkules XL S120 HDSauna heaters

Is the EOS 46.U right for your project?

Send the dimensions, the number of users and the available electrical supply; we will check the fit with you.

Request a quote +971 58 558 1295

Material information is the manufacturer's product specification. In the cabins we build ourselves we use ayous, aspen and pine, including their thermo-treated versions; hemlock, red cedar and alder on request.

Updated: 29 October 2026