Heat pump

A heat pump is a heating system that extracts calories from the environment (air, ground, or water) to heat a building. In Belgium, it has become the preferred solution for new constructions and deep renovations, particularly as regions progressively ban oil boilers. Main types are: air-to-air, air-to-water (most common), ground-to-water (geothermal), and water-to-water. Installation costs range from EUR 8,000 to EUR 20,000 depending on type and capacity. Regional grants exist: up to EUR 4,000 in Wallonia, EUR 4,000 in Brussels, and a variable amount via Mijn VerbouwPremie in Flanders. The coefficient of performance (COP) of a modern heat pump is 3 to 5, meaning it produces 3 to 5 kWh of heat for 1 kWh of electricity consumed.