Electric Sauna Heater Ronda IX

Ronda IX is one of our most popular models — and for good reason. It's a fast-heating wall heater suitable for a wide range of sauna sizes. Its unique spiral resistor design increases the heating surface area, allowing for fast, energy-efficient heating without compromising on steam quality.

As a wall-mounted heater, the Ronda IX has a generous 40 kg stone capacity, providing versatile steam from floor to ceiling. You can vary the quality of the steam from soft to more vigorous by throwing water onto the sides or top of the heater – adapting the experience to your preference each time you bathe.

Available in 6.6 kW (6–9 m³) and 9.0 kW (8–13 m³), the Ronda IX suits a wide range of sauna sizes, from compact home installations to larger wellness spaces — a versatile choice for villas, apartments, and spa projects across Marbella and the Costa del Sol.

Control options:

E2 Smart Control — An easy-to-use controller that learns your sauna's heating patterns over the first few uses to maintain the optimal temperature in an energy-efficient way. The controller can be placed in the sauna room, the changing room, or wherever is most convenient.

E2W WiFi Control — All the benefits of E2, plus remote control from a mobile device:

Remote on/off, timer, and temperature control from your phone

Door sensor for safety — heating is interrupted if the sauna door is opened during a session

Web app session tracking — monitors total heating time, reminds you when sauna stones need replacing, tracks energy consumption and electricity costs

Health and wellness logging — record sauna sessions and compare with your own history

Multi-user access — add or remove users, including temporary guests, with adjustable data visibility

Mechanical (M) Control — Traditional manual operation for those who prefer a simpler setup.

The E2 and E2W control packages include the controller panel, temperature sensor, a 10 m control cable, and a 4 m temperature sensor cable. WiFi (E2W) models also include a door sensor and cable. The control unit comes in black as standard, with a white control unit available on request. Each electrical control is also offered in black or stainless steel casing finishes.