tulolämmitykseen

Tulolämmitys, often translated as ground heat or geothermal heating, refers to a system that utilizes the stable temperature of the earth for heating and cooling buildings. The principle relies on the fact that the ground temperature remains relatively constant throughout the year, typically between 7-13 degrees Celsius depending on depth and location.

A geothermal heat pump system is the core component of tulolämmitys. This system works by circulating a fluid through a network of underground pipes, known as a ground loop. In winter, the fluid absorbs heat from the earth, which is then transferred to the heat pump. The heat pump concentrates this low-grade thermal energy and delivers it to the building's heating system, often through radiant floor heating or forced-air distribution. In summer, the process is reversed; heat from the building is absorbed by the fluid and dissipated into the cooler earth, providing a cooling effect.

The ground loop can be installed in various configurations, including vertical boreholes, horizontal trenches, or submerged in a nearby body of water. The choice of installation method depends on factors such as land availability, soil conditions, and the heating/cooling load of the building. Tulolämmitys systems are known for their energy efficiency and reduced environmental impact compared to traditional fossil fuel-based heating methods. They can significantly lower energy bills and decrease greenhouse gas emissions. Maintenance requirements are generally minimal once the system is installed.