Central Heating called the heat production for space heating and hot water from a central system installed in a building (or all buildings) for this purpose. The main system consists of a set of interconnected devices and instruments, namely the boiler, the burner, the pump, the fuel tank, safety devices, pipes, stacks and radiators.
The energy production is transported to various places by a heating medium (water) while the distribution is accomplished through a network of pipes.
Parts of a central heating system:The boiler
The boiler is a 'pressing' tank which transfers heat to the heating medium. It is the area where the necessary combustion is done to heat the instrument (in Greece is mostly hot water of low temperature). The type of boiler used mainly determined by the required temperature and the pressure of the produced steam or water. The boilers are divided according to the material used in cast iron and steel.
The cast iron better withstand corrosion, can accept data additions and require smaller amounts of water during operation. The pipes are light weight and better withstand the pressures and sudden temperature changes.
Their dimensions are better suited to different requirements and low cost.
The burner is a device mounted on the boiler in which the mixing of the combustible material is achieved (e.g. oil) with air so as to cause and sustain combustion. The burners are divided into two types depending on the fuel (liquid or gas) used in oil and gas.
Also depending on the number of steps that have been divided in single stage (with a step function) and two stage (two-stage operation).
There are analogue oil burners that adjust the flow of oil into the combustion chamber, and hence the power of the burner according to demand.
Circulators & the Fuel Tank
In a central heating installation, pumps transport the water from the boiler to the radiators and vice versa. The pump is a centrifugal pump, and powered by an electric current. Usually placed in the boiler room near the boiler. The fuel tank is another important element of a central heating installation as there is stored oil.
The radiators are the final equipment installation of a central heating system through which the heat transfer fluid heating transmitted indoors. The radiators are usually made of steel or aluminum.
The radiators have special switches that isolate it to avoid unnecessary energy spent in places not inhabited. They also have valves to vent their cases accumulated air not allowing the proper circulation of water inside. The radiators of Chappe have a ten years warranty.
Decorative radiators IRSAP Italy