radiaattorilämmitys

Radiator heating, known in Finnish as radiaattorilämmitys, is a common central heating system. It works by circulating hot water through a network of pipes to radiators installed in various rooms of a building. The heat is then transferred from the hot water to the surrounding air via the radiator's surface, warming the room.

The heat source for the hot water is typically a boiler, which can be powered by various fuels such as oil, natural gas, electricity, or biomass. In some systems, the heat might be generated by district heating networks. The hot water is pumped through the pipes and into the radiators. As the water cools, it returns to the boiler to be reheated, completing the cycle.

Radiators come in various designs and materials, including cast iron, steel, and aluminum. They are usually placed under windows to counteract the cold air that can descend from them. Modern radiator systems often incorporate thermostatic radiator valves (TRVs). These valves allow for individual room temperature control, enabling occupants to set different temperatures in different areas and improving energy efficiency.

The advantages of radiator heating include its ability to provide even and comfortable warmth. The system is generally reliable and has a long lifespan. However, it can be slower to heat up a room compared to some other heating methods, and the radiators themselves can take up space and may require regular maintenance, such as bleeding to remove trapped air.