This heating system comprises a heating block inserted into the wall, which is completely invisible. The block has a resistor, which is connected to a thermostat that regulates the ambient temperature, thus ensuring the desired level of heat.
It is an ideal system for anyone who has aesthetic concerns. It allows walls to be used normally, i.e. for hanging artworks etc., since it is installed in the lower section of the wall. The existence of the thermostat on the outside surface of the wall indicates the site where the heater has been placed.
This is a heating system that functions on the basis of radiation, just like the Duo-Thermo stone heater. Apart from the fact that it does not dry the air or consume oxygen, it does not cause any movement of dust and is therefore recommended by doctors for individuals who suffer from respiratory problems such as bronchitis, asthma, sinusitis and pharyngitis, or those who suffer from allergies.

Installation:

1 – An opening is made in the wall with a depth of about 5 / 6 cm (the width of an 11 cm brick). The length and width of the opening will correspond to the size of the blocks that are to be installed, plus 10 cm.

2 – A groove is made to introduce a tube for the electric connection to the thermostat. The thermostat should be placed at least 50 cm away from the block.

3 – The radiator block can be installed both vertically as well as horizontally, at a height ranging from between 20 to 40 cm above the floor.

4 – It is affixed from behind with cement-glue.

5 – The block is covered in front by a fibreglass net that is placed over the brick wall about 10 to 15 cm around the block. A layer of flexible glue (about 1 cm thick) is applied over this.

6 – Then the final plastering is done. In case the wall is going to be plastered with stucco, it is recommended that the finish be very smooth over the block and about 30 cm around it so as to avoid cracks.

Advantages:

Maximum energy efficiency – Making the most of the inertia/thermal capacity of the wall, the heat radiated by the block is not just radiated outwards but keeps accumulating in the wall, thus ending up by heating the other side of the wall in which it has been installed. This establishes a thermal exchange between the different rooms, which allows a progressive reduction of energy consumption over the course of the winter. 
Each radiator block is connected to a thermostat, to ensure that the reading of the ambient temperature is correct, thus avoiding any unnecessary loss of energy: - without pipes or tubes, the heat is available precisely when, where and as much as is necessary!

Low energy consumption – The heat-accumulating capacity of the wall allows the system to heat the space at night at a slightly higher temperature (for example 20º), in order to accumulate the maximum heat at a lower price (dual tariff meters), so as to maintain the desired ambient temperature during the day without consuming energy, for several hours.
Owing to the fact that the system works on radiation, the same level of thermal comfort as a convection system can be achieved with a temperature that is about 3º lower, which substantially reduces energy consumption.

Space optimisation –Since the radiator block is affixed inside the wall it does not occupy any space or constitute an obstacle for other objects. It is therefore ideal for crèches, playschools and schools where children need a lot of free space or for old age homes or recovery centres, allowing the free circulation of wheelchairs.
 

Operating the system:The system is extremely simple to install and use and requires no maintenance. The radiator block is a heating system that is always on: you only need to regulate the thermostat to achieve the desired ambient temperature.

Guarantee: - 5 years