Heat pumps are gaining increasing popularity due to their energy-saving efficiency and environmental friendliness. However, there are various reviews, both positive and negative, depending on the user experience and the conditions of each installation.

The following are the basic positive and negative heat pump reviews:

Positive Reviews

1. Efficiency and Energy Saving
   • Many users praise the energy efficiency of heat pumps, as they use less electricity to transfer heat, rather than generating heat from scratch, like conventional heating systems. This results in significant reduction of heating costs and energy consumption.
   • It is often stated that heat pumps offer savings of the order of 30-50% in heating costs, compared to traditional systems, such as oil or gas boilers.
2. Environmental friendliness
   • Users appreciate the environmental friendliness, as heat pumps exploit renewable energy sources (air, ground, water) and reduce CO₂ emissions compared to traditional heating methods based on fossil fuels.
3. Reliability and Long-Term Performance
   • Provided they are properly maintained, heat pumps are generally very reliable and last for many years (usually 15-20 years or more).
   • Some users report that the system works flawlessly even in difficult climatic conditions (except for very low temperatures).
4. Comfort and Stable Temperature
   • Heat pumps provide constant temperature and excellent comfort, with the ability to also function as air conditioners in the summer (depending on the system).
   • The heating performance is uniform throughout the house, which is appreciated by users.
5. Reduced Noise
   • Modern heat pumps operate with low noise, which makes them more pleasant than other heating or cooling devices.

Negative Reviews

1. High Initial Installation Cost
   • One of the most frequently mentioned negative comments is high initial cost of the installation. Although the operating costs are lower, the cost of the device and the installation, especially for geothermal pumps or in homes with a necessary system upgrade, can be quite high. Especially for homes with old radiators, the installation may require significant modifications.
2. Very Low Temperature Performance
   • Heat pumps air-water They lose efficiency at very low temperatures (below -10°C to -15°C). In areas with severe winters, this can be a problem, as the pump cannot extract enough heat from the air and the system may require additional heating or maintenance.
3. Space and Installation
   • Installing a geothermal pump requires large excavation works for the placement of geothermal collectors, which can be inconvenient for homes in confined spaces or in densely populated areas. It can also require higher costs for excavation and installation.
4. Maintenance and Repairs
   • Although maintenance is not too frequent, there are users who complain about the cost of repairs and maintenance although the system has been operating for years, professionals who maintain heat pumps are not always easily accessible or affordable.
5. Noise from the Outdoor Unit
   • Some users report that the outdoor unit Heat pumps can be noisy, especially in areas with strict noise regulations. Although modern units are generally quieter, the noise from the fan and compressor can be annoying to some, especially if the unit is located near a window or residential areas.
6. Need for Space on the Plot
   • For geothermal pumps, space is required to place the pipes or boreholes, which may not be feasible for homes with small yards or in areas with limited available land.

To summarize

Heat pumps offer excellent energy efficiency, environmental friendliness and consistent comfort, but the initial cost, limitations to very low temperatures, as well as the need for maintenance and possibly modifications, are the main disadvantages. For the most efficient solutions in cold regions, a combination of a heat pump with other heating sources may be necessary.