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EOS Stone S25


Attractive sauna heater with a 25 kg rock store.

An EOS Stone sauna heater with its impressive “raw stone” design will be an eye catcher in every sauna. The front side is fitted with massive soap stone panels which not only provide this model its unique appearance but also store heat and become a source of a gentle, comforting warmth radiation.

Thanks to the flat rear side with recessed terminal box, EOS Stone S25 heaters are great for installation in front of glass panels.

Surprisingly compact yet powerful - with only 0,16 m² footprint EOS Stone S25 features a 25 kg large rock store for high temperature stability and frequent water splashes.

Made of special high grade stainless steel with finest craftsmanship and care to every detail. EOS Stone is designed to last - to deliver you years of enjoyment in your sauna.

Also available with high-quality matt black finish*


Optional: Heater guard rail with mounting brackets, rear wall cover panel.


Item no.

7,5 kW


9,0 kW


7,5 kW - black*


9,0 kW - black*



Also available as Bi-O version:
EOS Stone S25 Vapor

Electrical connection

400 V 3N ~ 50/60 Hz

Dimensions H/W/D, in cm

75 / 40 / 42,5

For sauna cabin size (7.5 / 9 kW)

8 - 12 m³ / 10 - 14 m³

Min. size air inlet and outlet (7.5 / 9 kW)

35 x 5 cm / 35 x 6 cm

Fuse protection control unit

3 x 16 A

Weight withouth rocks

50 kg

Stone filling

25 kg

Power extension required