Heat Pump
Heat pump: the complete guide for 2025 in Belgium
Everything you need to know about heat pumps: types, benefits, grants, installation and expert advice for making the right choice in 2025.
· 15 min read · VCN Energy
Heat Pump: the definitive guide to choosing and installing your heat pump in 2025
Heat pumps are gradually becoming the most efficient and environmentally friendly heating solution on the market. Faced with rising energy prices and environmental requirements, more and more Belgian homeowners are choosing this innovative technology.
Understanding how a heat pump works
A heat pump works on a simple but ingenious thermodynamic principle: it captures the calories present in the environment (air, water or ground) to release them as heat in your home.
The thermodynamic cycle
The operation is based on four fundamental steps:
- Evaporation: A refrigerant at low temperature absorbs calories from the external source and evaporates.
- Compression: The compressor increases the pressure and therefore the temperature of the gas.
- Condensation: The hot fluid releases its calories to the heating circuit.
- Expansion: The fluid returns to low pressure to restart the cycle.
The different types of heat pumps
Air-to-water heat pump
The air-to-water heat pump is currently the most common model in Belgium.
Advantages:
- Relatively simple and quick installation
- Compatible with existing radiators and underfloor heating
- Can provide domestic hot water
- Excellent value for money
Indicative price: Between €8,000 and €18,000 including installation.
Air-to-air heat pump
Also called reversible air conditioning, it directly diffuses hot or cold air.
Indicative price: Between €3,000 and €8,000.
Geothermal heat pump
This draws heat from the ground at a depth where the temperature remains constant all year round.
Indicative price: Between €15,000 and €30,000.
Grants and financial aid in 2025
Housing grants in Wallonia
- Air-to-water heat pump: Basic grant from €1,500 to €6,000
- Geothermal heat pump: Basic grant from €6,000 to €12,000
Conclusion
Installing a heat pump is a significant investment that deserves support from experienced professionals.
Contact us at 0470 27 16 08 for a free study.