Armstrong International’s heat pump production facility in Belgium to be equipped with geothermal system
The CircularSteam project in Belga, Belgium (source: Armstrong International)
Carlo Cariaga
26 Jun 2026
Armstrong International is building a heat pump production facility in Belga, Belgium that uses an innovative geothermal heating and cooling system.
Armstrong International (Armstrong) has announced the launch of construction work of a new high-temperature industrial heat pump production unit in Herstal, Belgium. The facility will be supplied with a geothermal heating and cooling system, which will be the first of its kind within the Hauts-Sarts business park. Commissioning of the facility is scheduled for 2027.
The project, named “CircularSteam“, aims to manufacture 100 industrial heat pumps per year, with an average power of 1MW, on a 25,000 m² site containing former mining galleries that the group acquired specifically for this purpose, and is part of a carbon neutrality and high energy performance approach.
The new production site, covering an area of 7,000 m², will be supplied with heating and cooling from a field contained 30 geothermal probes. The innovative solution, developed in collaboration with the engineering firm Resolia, uses closed-loop probes installed at a depth of 140 meters to supply heating and cooling to the building. The system integrates specifically with the production facility, as the heat dissipated during tests conducted on the industrial heat pumps manufactured by Armstrong will also be recovered and reinjected into the ground. This uses waste heat to ensure the system’s longevity.
According to the company, this system will cover the factory’s heating needs to the tune of approximately 200 MWh per year. In total, this will prevent more than 32 tonnes of CO2 emissions per year compared to a conventional gas boiler. The installation is being co-financed by the European Union.
As further explained by Managing Director Rossen Ivanov, the facility will manufacture heat pumps that can raise fluid temperatures up to 120 ºC, making it usable in industrial processes. These pumps are increasingly used to supply urban or industrial heating networks. Europe has a particularly strong market for heat pumps. As Ivanov estimates, Europe will need about 50 similar plants to achieve its 2050 decarbonization targets.
“This is a project that will create 77 local, skilled and sustainable jobs: this is exactly what we need to reduce our excessive dependence on fossil fuels,” added Herstal mayor Frédéric Daerden, before highlighting the recent investments made in renewable energy by a whole series of other companies located in the industrial zone.
Armstrong International offers an extensive portfolio of solutions for geothermal systems including heat pumps, valves, steam traps, and flow measurement devices. To learn more, check out the Armstrong’s Geothermal Page.
Source: Belga Share
