maaperälämmityksessä

Maaperälämmitys, also known as ground source heating or geothermal heating, is a system that utilizes the stable temperature of the earth to heat and cool buildings. It works by transferring heat from the ground into a building during colder months and from the building into the ground during warmer months. The core component of a maaperälämmitys system is a ground loop, which is a network of pipes buried either horizontally or vertically in the ground.

A fluid, typically a mixture of water and antifreeze, circulates through the ground loop. In winter, the fluid absorbs heat from the relatively warmer earth. This warmed fluid is then pumped to a heat pump inside the building. The heat pump concentrates this low-grade heat into a higher temperature suitable for heating the building's air or water. In summer, the process is reversed. The heat pump extracts heat from the building and transfers it to the fluid in the ground loop, which then dissipates the heat into the cooler earth.

Maaperälämmitys systems are known for their high energy efficiency and low operating costs compared to conventional heating systems. They have a minimal environmental impact as they reduce reliance on fossil fuels and lower greenhouse gas emissions. The initial installation cost can be higher due to the excavation required for the ground loop, but the long-term savings on energy bills and the system's longevity often make it a cost-effective solution over time. The lifespan of a maaperälämmitys system can exceed 50 years.