Published: Aug 21, 2026
In the drive toward industrial decarbonization, process steam remains one of the most challenging energy requirements to clean up. Traditional manufacturing facilities rely heavily on fossil fuels to produce high-temperature steam while simultaneously discharging vast amounts of thermal waste into the environment.
Steam-generating heat pumps bridge this gap. By capturing low-grade waste heat and upgrading it into high-value process steam, this technology offers an efficient, sustainable route to electrify thermal systems and cut carbon emissions.
In many industrial plants (from food processing and pharmaceuticals to chemical manufacturing) hot process water, condensate, and wash water are routinely dumped into drainage systems or dissipated through cooling towers. This discarded water carries away valuable heat energy.
Steam heat pumps transform this waste stream from an environmental byproduct into an operational asset. By extracting thermal energy directly from hot wastewater loops (or other coolants), the system elevates this energy to temperatures capable of generating usable saturated process steam.
Instead of burning fresh fuel to heat cold makeup water from scratch, facilities can recirculate existing energy back into their primary steam loops.
The economic argument for steam heat pumps centres on their operational efficiency, measured by the Coefficient of Performance (COP).
Conventional electric boilers operate at a maximum thermal efficiency of around 95% to 99% (a COP of under 1.0). Steam heat pumps do not generate heat purely from electricity. Instead, electrical power is used solely to run the compressor that raises the temperature of the recovered waste heat.
Depending on the temperature of the waste heat source, industrial steam heat pumps achieve a COP exceeding 3. This means that for every 1 kWh of electricity consumed by the compressor, the system yields over 3 kWh of usable thermal energy in the form of steam. This dramatic multiplication of energy input slashes both operational expenses and grid load.
Energy efficiency must not come at the expense of chemical safety or environmental compliance. Many conventional heating and cooling systems historically relied on synthetic hydrofluorocarbon (HFC) refrigerants, which carry regulatory risks related to Global Warming Potential (GWP) and evolving environmental legislation (such as PFAS restrictions).
Next-generation industrial steam heat pumps utilize 100% natural refrigerants.
As manufacturing facilities work toward net-zero targets, integrating heat recovery systems alongside fast-responding steam generators creates a flexible energy infrastructure. By combining recovered thermal energy with clean electric power, facilities can maintain reliable steam supply while significantly reducing overall energy footprint and fuel consumption.
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Clayton is a global manufacturer of industrial steam solutions. European production and engineering have been carried out since 1961 in Bornem, Belgium, where Clayton of Belgium serves as the EMEA headquarters and main production hub for Europe, the Middle East, and Africa. The global headquarters of the Clayton Group is located in California, with additional production facilities in Mexico and Europe, and subsidiaries in France, Germany, the Netherlands, Spain, and the United Kingdom.
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