We recommend that you allow for appliances with 100 W/m² (e.g. for a 15 m² bedroom, 1500 W will be sufficient). However, if the building is insufficiently insulated, this value will not be enough. In France or Scandinavia, the value can drop to 55 W/m² for new housing (accounting for the insulation quality of the building and specific calculations carried out by a specialised engineering firm).

Programme your heating appliances and ensure that your home has a good level of heat insulation. You should preferably use electronic appliances whose accuracy will enable you to obtain a lower temperature setting.

Avoid positioning heating appliances near doors, windows, etc. To improve heat distribution and prevent one part of the room from being cold and the other hot, it is better to have two 1000 W heating appliances in the room rather than a single appliance of 2000 W.

Check whether the electrical current is reaching the appliance (NB: this operation requires that all possible safety measures relating to the use of an electrical current are taken) and whether the (mechanical) on/off switch or the (electronic) cursor mode is not set to off.

Check that the room temperature is not too high for the appliance to work. Set the temperature to maximum to see whether the appliance starts heating after a few minutes; then return to the required setting. NB: for an electronic appliance, the appliance operates intermittently over a period of 40 seconds according to requirements.
Check the operating mode position on electronic appliances (Comfort/Economy, Frost-free, Stop, Program settings). Move the cursor to comfort mode to check whether the appliance heats up; the malfunction may come from the programming if you are in Program mode.
The sensor may be faulty on the electronic appliances: Switch the heating off then on again. If the heating LED flashes continuously, the sensor is damaged. Contact the after-sales service or your dealer to replace it if your appliance is under warranty.

Check that:

  • the appliance is not in a draught 
  • the temperature setting has not been changed or set to maximum
  • the appliance is to small to heat the room

On electronic appliances, there may be an unexpected event on the grid. In the event of a problem (blocked thermostat, etc.), cut off the power supply to the appliance (fuse, circuit breaker) for 10 minutes, then switch it back on. If this situation occurs frequently, get your electricity provider to check the power supply.

  1. Increase the temperature setting
  2. Check whether the output of your appliance is suited to the size of your room (see the section on power settings)
  3. On an electronic appliance, if the heating LED is flashing continuously (slow flashing every 2 seconds), the measurement sensor is damaged

Otherwise, carry out the following checks:

  • Check whether there is another heating mode in the room
  • Make sure that your appliance is heating only the room (and not the entire house)
  • Check the power supply voltage of the appliance (our appliances have a power calculated for 230 V).

It should be installed at a minimum 120 mm from the floor to leave room for air intake and ensure the least amount of disruption due to air movement. The securing bracket provided with the appliance ensures that the appliance is correctly positioned.

Water heater capacity is chosen according to the number of users, their water consumption and the house’s sanitary facilities (bath, shower, etc.). It also depends on the water temperature when it arrives in the water heater, influencing on time for the water to get heated up. As a general rule, we recommend larger tanks when your family is located in cold weather countries (Estonia, Germany, etc.), and smaller tanks when you are located in warmer climates countries (Vietnam, UEA, Urugay, etc.). As an example, we would recommend a 50L water heater for a family of 4 people in a warm country; and a 150L water heater for the similar family located in a colder region of the world. For more detailed advice, contact your local dealer.

You can choose between horizontal, vertical, wall-mounted or floor standing models, depending on where you whish to install the water heater, and the space available. The only limitation is the proximity to draining points. Refer to your country regulations and your water heater IP index to know how close from a draining point your water heater can be installed. 

For extended absences (1 month or more), switch off the power to the appliance and drain down the water heater to prevent any risk of frost damage.

Depending on water type of water, use (temperature, quantity of water used) and appliance quality, the lifetime of a water heater can be anything between 2 and 20 years. The average for our brand is over 12 years.

The electric water heater requires a heating time that varies from 20 minutes for the smallest to 6/8 hours for the largest. You must wait for this time to obtain hot water. Some models have an indicator light that shows you if the product is heating.
You can check whether the water heater is receiving an electrical current. NB: this is a professional operation and you must have the required skills.
Next, after switching off the power, you can use an ohmmeter to check whether the heating element and control thermostat are working.
Check the thermostat to see if the safety mechanism has been reset.
If you still have no hot water, call in a professional or the after-sales service.

It mostly depends on your taste (in a cupboard, in your bathroom or your kitchen etc.) 

The only limitation is the proximity to draining points. Refer to your country regulations and your water heater IP index to know how close from a draining point your water heater can be installed.