ilmavesilämpöpumpulla

Ilmavesilämpöpumppu, often abbreviated as IVT, is a type of heat pump that utilizes outdoor air as its heat source and water as the transfer medium to heat a building. This system is a popular choice for heating and cooling in many regions due to its efficiency and relatively lower installation costs compared to some other geothermal systems. The fundamental principle involves extracting heat energy from the ambient air, even at low outdoor temperatures, and transferring it to the building's water-based heating system, such as radiators or underfloor heating.

In colder months, the IVT works by circulating a refrigerant through an outdoor unit where it absorbs heat from the air. This warmed refrigerant then travels to an indoor unit where it passes through a heat exchanger. Here, the heat is transferred to the building's water, raising its temperature. This heated water is then circulated throughout the building for space heating. In warmer months, the process can be reversed for cooling, with the IVT extracting heat from the indoor air and releasing it outside.

The efficiency of an IVT is measured by its Coefficient of Performance (COP), which indicates the ratio of heating output to electrical energy input. Modern IVT systems can achieve high COPs, meaning they can deliver significantly more heat energy than the electricity they consume, leading to reduced energy bills and a smaller carbon footprint. Factors influencing performance include outdoor temperature, the system's design, and proper installation.