By Eamonn Ryan
Why heat source selection and permitting come first.
Freepik.com
Industrial heat pumps are rapidly gaining traction across the food and beverage sector as companies pursue decarbonisation, energy efficiency and long-term cost stability. But as discussed on Apple podcast on the platform From The Cold Corner – where Michael Levitt of Refrigerated & Frozen Foods spoke with Marc Gieseking of Güntner – installing an industrial heat pump is not a plug-and-play equipment swap.
It is a strategic infrastructure project that begins with feasibility, not procurement. One of the most common misconceptions in industrial heat pump installation is that the process begins with choosing a machine.
In reality, it begins with identifying a viable heat source.
Industrial systems require a dependable thermal source to upgrade. Depending on geography and facility configuration, options may include:
- Wastewater heat recovery
- Ground source industrial heat pump applications
- Surface water (lakes or rivers)
- Ambient air systems
- Waste heat from refrigeration systems
Each source carries distinct engineering and regulatory implications.
For example, surface water or groundwater sources often improve system efficiency, but industrial heat pump permitting for water extraction can involve environmental approvals that take months – sometimes years. Without early engagement, these approvals can delay projects significantly.
Air source heat pumps for factories avoid water-use permits but introduce defrost cycles and seasonal capacity variations. Ice formation on evaporator coils reduces performance and must be addressed during design, not after installation.
The key takeaway: feasibility analysis must precede equipment specification.
The hidden timeline risk
Government incentives are accelerating industrial heat pump adoption. In Germany, the Federal Office of Economics and Export Control (BAFA) can subsidise up to 70% of qualifying installations, significantly improving ROI.
However, subsidy programmes typically require:
- Detailed efficiency modelling
- Refrigerant documentation
- Technical performance verification
- Environmental compliance confirmation
Industrial heat pump permitting is not an administrative afterthought – it is a critical path activity.
Facilities that initiate regulatory discussions early, sometimes even before final system design, experience fewer delays and smoother implementation.
Industrial heat pump systems differ dramatically from residential units.
While domestic systems may operate between 5 and 35kW, industrial heat pumps can exceed 30MW.
At this scale, industrial heat pump installation may require:
- Dedicated mechanical rooms or buildings
- Electrical infrastructure upgrades
- Custom piping and control integration
- Structural reinforcement
These systems become part of the facility’s thermal backbone and are typically designed for 20–25 years of operation.
Early-stage planning determines whether the installation becomes a seamless energy transition – or a costly retrofit challenge.