Geothermal heat pumps are the most efficient HVAC system in the world, however, there are certain requirements, the first being the need to have land to be able to make the geothermal boreholes, in the case of a new home they could be made under the house itself, but for renovation we need to have outside space to make the wells.

The cost of the installation of the geothermal heat pump is higher than that of the aerothermal system but being a more efficient system is compensated over the years, another advantage of geothermal energy with respect to aerothermal energy is the noise and visual impact, aerothermal energy is necessary to install outdoor equipment that produces noise due to the fan and compressor, currently the equipment is becoming quieter but will never reach the level of geothermal energy.

On the other hand, it is important to take into account the climate in which the heat pump is going to be installed, since for extreme climates, where it is very hot in summer and very cold in winter, geothermal energy is the ideal system since it is not affected by changes in the outside temperature, however, aerothermal energy is currently the only system that can be used in extreme climates, where it is not affected by changes in the outside temperature, However, aerothermal energy at these times when it is hotter or colder is precisely when more power is needed to achieve comfort and when there are extreme temperatures, temperatures below zero and temperatures above 35ºC, the performance is the lowest of the year, since the energy is extracted from the air.