Quick Overview

Helo SKLA and Magma are designed for big, commercial and institutional saunas, which require durable, powerful and cost efficient stoves.

They create rich steam and a pleasant sauna atmosphere. The maximum amount of stones is 120 kg. SKLA and Magma stoves are meant for sauna rooms measuring 18-46 m3, and the two product families feature several options suited for their wide user base.

Technically Magma are SKLA quite similar and only differ in the design and colours of casing. SKLA is more angular and has a shiny look, while Magma has rounded corners and a darker, stylish exterior.

SKLA and Magma stoves are controlled by separate controllers. The options are the touchscreen T2 controller with contactor case WE 14, or the digital Digi II controller with contactor case WE 5. The range also includes the analogue OK 33 PS-3 controller with contactor case WE 1, and the OT 22PUi controller used with the weekly clock EK 5 P and contactor case WE 1.

The top-quality design of the stoves ensures cost-effective energy use, trouble-free usage, and effortless maintenance.


The Features

Control systems

Available with a choice of intuitive control systems — easy to learn and use.


Cost-effective energy use without compromise to climate quality.

Easy maintenance

Quality engineered for problem-free performance and easy maintenance — specifically for the needsof professional or commercial sauna rooms.


Proven performance, LAAVA has been the industry standard for more than 25 years.


An investment that can pay for itself by adding value to your facilities and ensuring customer satisfaction and returns.

Fitting control unit SKLA/Magma

Digi I

DIGI I is a simple but smart solution that gives you most basic comfort functions at the touch of a button. DIGI I lets you preheat your sauna anytime within a 24 hour period, ensuring a relaxing and refreshing climate is ready when you are without having to wait. The digital touch pad is also your control for temperature, lighting and the fan. DIGI I is designed for wall or flush mounting outside the sauna.

Digi II

Such as Cava and Pikkutonttu, or for commercial type heaters such as SKLE, Octa and Seidankivi. With preheating timings from 0-24 hours, set heating time of 0-6 hours, and one-touch preset bathing programmes, DIGI II gives you maximum flexibility in managing comfort.

You’ll also find keys for temperature adjustment, light and fan operation, and the high-visibility LCD display provides information in your choice 5 languages (Finnish, Swedish, English, German and Dutch).

Flush or surface mounted outside the sauna, Helo Digi II has a total size of 138x173x34 mm (wxhxd).

OT 22 PS-3

OT 22 PS-3 control unit has 0-8 hours preset time and 0-4 hours working time or without pre-selection 0-12 hours working time. It is used together with contactor box WE 1 and has also an option for controlling the sauna lighting. Control panel and contactor box are installed in a dry area outside the sauna room. OT 22 PS-3 control is supplied with a sensor Olet 6-1 with a five-meter cable.

Compatible heaters: Magma and SKLA

OT 22 PUi

OT 22 PUi is used for remote control of the sauna. Every week day can have its own program for sauna bathing. OT 22 PUi is used together with contactor box WE 1and it requires a weekly timer EK 5 P. The maximum working time is 12 hours and then it has 6 hours pause time. Control panel and contactor box are installed in a dry area outside the sauna room. OT 22 PUi is supplied with a sensor Olet 6-1 with a five-meter cable.

WE 1

Contactor box WE 1 is used together OT 22 PS-3 or OT 2 PUi (requires week timer) to control SKLA and Magma-heaters. It is installed in a dry space outside the sauna room. Dimensions are:  250 x 185 x 74 (l x k x s).

WE 5

Contactor box WE 5 is used together with Digi I and Digi II control units for SKLA and Magma heaters. It is installed in a dry area outside the sauna. Dimensions are 390 x 243 x 91 (L x H x D).


This new control panel is designed to control the heater or steam bath – and it is good looking too. T2 is equipped with a touch-control and it shows temperature and time in operating mode. It has the ability to pre-program the heating of your sauna up to 23 hours ahead. It is also equipped with a switch for lighting, an easy control for the temperature, a switch between Fahrenheit/Celsius, a 12 h/24 h format, multiple language and other more advanced settings and a testing possibility.

WE 14

Contactor box WE14 is used together with T2 control units for SKLE, Laava, SKLA, Magma, Octa and Saga Electro heaters. It is installed in a dry area outside the sauna. Dimensions are 345 x 310 x 120 (L x H x D).

One heater, multiple sensations

BWT from Helo means several sauna experiences in one solution. Enjoy your favorite sauna alone or share different sauna experiences with family and friends. With a BWT-ready sauna heater from Helo, it is all possible. The flexibility of BWT from Helo means several opportunities for a pleasurable sauna experience.

Keeping CO 2 emissions to a minimum and your pleasure at a maximum

Helo BWT is a cost effective and highly energy efficient sauna solution. Steam generation happens without any auxiliary power or added technology. One intelligent sauna solution allows you to enjoy your favorite sauna experience from a single sauna and steam solution. The ingenuity that has gone into developing BWT has resulted in an innovation keeping CO2 emissions to a minimum and your pleasure at a maximum.

Enjoy a multi layered sauna experience from one single sauna solution. In our BWT-ready saunas, we have created a number of different but equally pleasurable sauna experiences packed into one simple solution. It is BWT from Helo. A sauna that changes with you.


Less wear and longer life protects your investment.

The generally lower levels of heat used in a BWT-ready sauna from Helo means less stress on the sauna room and hardware. Your sauna room will last longer and the simple engineering of BWT keeps technical maintenance to a minimum.


Customise your sauna experience and comfort in an authentic Finnish sauna environment. With our BWT-ready sauna heaters you may enjoy a full spectrum of relaxing and luxurious sauna therapies from one single solution. It is flexible, it is multi layered. It is all in BWT from Helo.

Gentle sauna

Add water to BWT-container, set temperature to:


Gentle sauna

Enveloping steam

Longer sessions

Bio-aroma available


Fill BWT water container and set temperature to:


More humidity

Lower temperature

A gentle sauna experience

Bio-aroma available


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