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The Helo Midi control unit offers the extra convenience of being installed inside the sauna room.

This slimline digital control unit is optimised for sauna heaters like Cava, Plus and Pikkutonttu. Preset time is 0-23 hours and heating time 0-6 hours. You can control the temperature and the display shows you both the set temperature and the actual temperature. The sauna light can also be operated via Helo Midi. Helo Midi is available in 2 different frame colours: white and chrome.

Size 56x186x15 mm (wxhxd).


The Features

Completely digital

Digital is the future and Midi is already there with its digital functions and interface. Usually installed in the sauna room, Midi can also control the sauna lighting.

Online display

The online display makes it effortless to navigate the menus and make your settings.

Slimline design

With its modern simple design this control fits right in your newly renovated sauna room.

Fitting electric heaters Midi


Helo Roxx unites modern industrial design with a large amount of natural stone. This impressive brushed steel design stove produces enjoyable soft steam. Heat is stored efficiently in the stones, making Helo Roxx a favourite for sauna lovers. When water is poured onto the nearly 40 kg of stones, it produces pleasant and smoothly soft steam.



Helo Cava combines exclusive materials with modern design, and offers an excellent bathing atmosphere. Together with sauna stones (ca. 30 kgs) , the heat restoring soap stone surfaces give unforgettable smooth, moist sauna bath. The stylish graphite-grey stove can be installed on the floor or integrated into the benches using a soapstone fitting collar. The Cava DE model is controlled by a Midi or Digi II controller. For Cava DET, controller options are T1 and EC 50.



All of 100 kg of sauna stones are held in a steel brazier. The secret behind this top-quality stove's soft and relaxing heat is in full-length heating elements that heat up even the topmost stones on the stove. The heat radiates evenly and quickly in every direction. The beautifully designed brazier ensures that the eye-catching collection of natural stones is a real centre piece in the sauna.

You can give free rein to your interior design plans as Rocher can be installed in a corner or on the floor near a wall, or in the middle of the sauna sunk into the benches, using a glass or soapstone collar also suitable for underlighting.

The Rocher DE model is controlled by a Midi or Digi II controller. For Rocher DET, controller options are T1 and EC 50.



Rondo is one of Helo's accumulating, ever-ready type sauna stoves. The stove is round and its patented lid turns 360 degrees, which gives you entirely new possibilities to design your sauna interior.

Rondo is controlled by its own control unit, installed inside the sauna room. You can choose the standby temperature and decide the type of sauna bath you wish to achieve by adjusting the temperature of the stones. Rondo's optimised insulation shell retains effectively the heat produced by 90 kg of stones, letting you enjoy saunas at a moment's notice. Heat accumulating stoves work very well even with one heating – including the times when the sauna is not in regular use.

The stove is supplied with an easy-to-use handheld controller that can be installed in the sauna (humidity level IPX4). The length of the controller cable is approx. 3 m, extendible by 2 m.

Rondo is a freestanding stove but it can also be integrated into the benches. The safety distances required around the stove are only 10 mm and a 1040-mm clearance above.



Himalaya – the name of the legendary mountain range means “home of the snow”. Like its namesake, the secret of Helo’s Himalaya also lies in the natural water cycle. The new sauna stove conceals a water container featuring ingenious BWT technology, which humidifies the sauna room while it is warming up. So when you climb up onto the benches, the air is already pleasantly humid and easy to breathe. You can enjoy the rich warmth on your skin already at a slightly lower temperature.

Himalaya stoves are meant for sauna rooms measuring 5-15 m3. The attractive stove is 103 cm high and comes in matte black or chrome.

You can also add aromatic sauna scents into the water container or steam some mineral salts, to make your sauna experience a little different.


Get in touch

Do you need help, info or have questions? Please do contact us.