EOS Thermat W 4.5 kW is a wall-mounted electric sauna heater designed for private Finnish (dry) saunas with a room volume of 4–6 m³. The heater features a compact design, a scratch-resistant anthracite pearl effect powder-coated finish, and a die-cast aluminium top.
The approximately 15 kg stone compartment provides an optimal balance between stone capacity and air convection, allowing the heater to heat up quickly while delivering excellent steam performance when water is poured over the stones. With side safety clearances of only 40 mm from combustible materials, the heater is also suitable for smaller sauna rooms.
The heater is operated with an external EOS sauna control unit, which is not included and must be purchased separately. According to the manufacturer, the following control units are compatible:
- EOS Econ D
- EOS Compact D
- EOS EmoTec D
- EOS EmoStyle D / Hi
- EOS EmoTouch 3
- EOS Command
Stones purchased separately.









































