Maaperälämmitys

Maaperälämmitys, often referred to as ground source heating or geothermal heating, is a renewable energy technology that utilizes the stable temperature of the earth to provide heating and cooling for buildings. The principle behind maaperälämmitys relies on the fact that the ground temperature below the frost line remains relatively constant throughout the year, typically between 7-12 degrees Celsius (45-54 degrees Fahrenheit) in many regions.

The system typically consists of a ground loop, which is a network of pipes buried horizontally or vertically in the earth. A fluid, usually a mixture of water and antifreeze, circulates through these pipes. In heating mode, the fluid absorbs heat from the ground. This warmed fluid is then pumped to a heat pump inside the building. The heat pump extracts the heat from the fluid and transfers it to the building's heating system, such as radiators or underfloor heating. In cooling mode, the process is reversed, with the heat pump absorbing heat from the building and transferring it to the fluid in the ground loop, which then dissipates the heat into the earth.

Maaperälämmitys systems are known for their high energy efficiency and low operating costs. They significantly reduce reliance on fossil fuels, contributing to lower greenhouse gas emissions. While the initial installation cost can be higher than conventional heating systems, the long-term savings on energy bills and the environmental benefits make it an attractive option for both residential and commercial properties. The suitability of maaperälämmitys depends on factors such as available land space, soil conditions, and local climate.