Biggest piston-based high-temperature industrial heat pump

The HeatBooster is based on the principle of mechanical vapour compression. It uses a two-stage compression process (piston compressor) to manage big temperature rises efficiently. Heat is increased up to 200°C in two stages. This multi-stage compression is crucial for high COP values when temperature differentials are large—and a key feature of our two-stage heat pump technology.

The Coefficient of Performance (COP) of the HeatBooster typically ranges from 2 to 5, depending on operating conditions. It achieves a high COP of over 50% of the Carnot Limit—even when there are large temperature rises. This is a clear sign of the excellent Carnot efficiency heat pump performance. Thanks to the two-stage compression principle, the COP stays high even when there are big differences between the heat source and the heat sink.

The piston compressor is the heart of the HeatBooster. As the largest piston-based compressor on the market, it offers impressive efficiency, durability, and flexibility. Its benefits include:

• High Performance: It can deliver an output temperature of 200°C and a high COP, even with considerable temperature rises.
• Flexibility: It offers rapid start-up (under 15 minutes), fast load changes (full to partial load in 30 seconds), and the ability to operate efficiently at partial loads as low as 20%.
• Durability: The technology is proven to operate for 30,000 hours without maintenance and is designed for a service life of over 20 years.

The HeatBooster is compatible with a wide range of fluids, including HFOs and HCs. Our piston compressors are designed with a variable compression ratio, allowing you to use a variety of refrigerants with the same hardware. This means you can start with one refrigerant and switch later without major modifications. This provides flexibility for batch processes, supports compliance with evolving regulations, and helps future-proof your investment against potential refrigerant bans.

A closed-loop steam/steam heat pump is ideal when the heat source and sink must remain separated. This is crucial for contamination-sensitive processes (e.g., pharmaceuticals, semiconductors) or when the process involves polluted or clean steam. Since the working fluid does not contact the process medium, this configuration is well-suited for vacuum or low-pressure steam applications. It also allows for greater temperature lifts per stage (above 60 K) and offers more installation flexibility by allowing the compressor and heat exchangers to be placed separately.