The astra natural stone heating is a complete heating system operating at favourable costs with special rates of the utility providers. The deregulation of the electricity market and the increasing prices for gas and oil were advantageous. You can use these special rates also for heating your hot water. This times, the system is becoming more and more widespread thanks to the cheap acquisition and installation costs, low running costs, no additional expenses and the attractive look of the natural stone.

On its surface the natural stone heating system emits infrared radiation with long wavelength to the room. Thereby, the portion of convection heat is very low. The temperature that has to be achieved to feel comfortable is approximately 3°C lover with natural stone heating than with convectional heating. Thermal comfort depends on the air temperature, the temperature difference between the head area and the floor and the walls, the relative humidity and the air velocity in the room.

Heating systems with high portions of radiant heat reduce the thermal movement in a room and therefore the air and dust circulation. And your feet will not be cold any longer. With natural stone heating systems it is not reasonable to have a set back in the night because compensation of the heat loss (post heating at cold night temperatures) occurs in the time of the advantageous low tariff. The furniture, ceiling and walls operate together with the natural stone heating as heat accumulator.

Room thermostats regulate the temperature in each room. Thereby it is possible to heat single rooms on coolish days.

The room thermostat turns off the natural stone device as soon as the adjusted temperature has been reached. The blocking times of the day tariff are bridged thanks to the total accumulation action.