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EOS Invisio Midi

underbench sauna heater

Special sauna heater for concealed installations under the sauna benches.

EOS Invisio is a special range of the unique concealed „underbench“ sauna heaters, which are installed under the sauna benches with a partition wall with only a 4 inch / 10 cm gap to the main sauna wall.

Thanks to their construction and particular installation, EOS Invisio heaters offer high safety standards and save a lot of valuable space in the cabin. There is no more risk of accidentally touching the heater and your sauna will look more spacious inside.

In spite of the hidden installation, traditional water splashes are of course still possible. All EOS Invisio heaters include a stainless steel water funnel with a silicone tube. The special gutter inside the heater spreads the water over the entire heater width to ensure quick evaporation.

The compact EOS Invisio Midi is ideal for private and commercial operations of the Finnish sauna. Water distribution gutter across the entire width, connection left and right. Adjustable height, no contact between sauna stones and heating elements. Includes safety grill and water infusion set.

Rock store fits approx. 44 lbs / 20 kg stones.


  • High user safety, thanks to the concealed installation.
  • Service-friendly construction.
  • Still allows classic "Aufguss" infusion on the sauna stones – water infusion set with stainless steel funnel is included.
  • Includes safety grill – reliable protection against objects falling down on the heater.
  • Optimized heating performance, thanks to the special position of heating elements – for faster heat-up times.
  • Robust construction with adjustable height.
  • Space-saving design allows more bench space in the cabin – only 4 inches / 10 cm required for the screen wall.
  • Rock store fits approx. 44 lbs / 20 kg stones.

Electrical connection

240V 2PH / 208V 3PH AC 60 Hz

Dimensions H/W/D, (height adjustable)

Height: 71-77 cm / 2.3-2.5 ft

Width: 116 cm / 3.8 ft

Depth: 38 cm / 1.2 ft

For sauna cabin size

3.2 - 4.5 sq m x 1.90 m (6.0 kW)
34.4 - 48.4 sq ft x 6.2 ft

4.7–7.4 sq m x 1.90 m (9.0 kW)
50.5-79.7 sq ft x 6.2 ft

7.4-9.5 qm x 1.90 m (12.0 kg)
79.7-102.3 sq ft x 6.2 ft

Min. size of air intake and outlet

35 x 5 cm (6.0 kW)
1,2 x 0,2 ft

35 x 6 cm (9.0 kW)
1,2 x 0,2 ft

35 x 7 cm (12.0 kW)
1,2 x 0,3 ft

Weight without stones and packing (6.0 / 9.0 / 12.0 kW)

24 kg / 25 kg / 27 kg
53 lbs / 55 lbs / 60 lbs

Stone filling

44 Ibs / 20 kg

EOS Invisio Midi brushed stainless steel

Power

Item no.

208 V 3Ph AC 60 Hz, 6.0 kW

947543

208 V 3Ph AC 60 Hz, 9.0 kW

947544

208 V 3Ph AC 60 Hz, 12.0 kW

947545

240 V 2Ph AC 60 Hz, 6.0 kW

947546

240 V 2Ph AC 60 Hz, 9.0 kW

947547

 


EOS Invisio Midi Anthracite

Power

Item no.

208 V 3Ph AC 60 Hz, 6.0 kW

947997

208 V 3Ph AC 60 Hz, 9.0 kW

947998

208 V 3Ph AC 60 Hz, 12.0 kW

947999

240 V 2Ph AC 60 Hz, 6.0 kW

948000

240 V 2Ph AC 60 Hz, 9.0 kW

948001