Reducing Hospital Costs Without Compromising Care

Thermal Energy International reduces operational risk, cost and emissions today, while preparing hospital sites for low-temperature and heat pump integration where and when it is technically and operationally appropriate.

3 images of hospitals
FLU-ACE installed in a hospital

Efficiency Today with a Practical Path to Low Temperature Heat

De-steaming is increasingly discussed in healthcare as part of a long-term decarbonisation plan, but full conversion is a complex and lengthy process, particularly across large acute estates with legacy infrastructure. Our projects can reduce cost and emissions now while putting the right infrastructure in place for future change, including compatibility with lower temperature hot water systems and heat pump integration where appropriate.

These measures not only deliver savings today but also protect capital by ensuring that investments remain valuable, if, and when, hospitals transition away from steam or adopt hybrid heat systems over time.

Reliable Heating and Hot Water for Hospitals

Hospitals are among the most energy-intensive facilities, with steam and hot water required around the clock for heating, sterilisation, catering, laundry and specialist equipment. This constant demand drives high fuel use and costs, making efficiency a critical priority. Thermal Energy International’s systems capture and reuse waste heat and optimise steam performance, cutting fuel bills while enabling progress towards sustainability targets. Thermal Energy International supports resource-constrained site teams and get projects delivered on time and on budget.

Proven Technologies for Hospital Heat Demand 

Our engineering team delivers proven heat recovery and efficiency technologies that reduce energy use, emissions, and operating costs within existing hospital heat infrastructure. These systems provide reliable performance and sustained savings year after year, while supporting a practical transition toward lower temperature and lower carbon heat solutions without operational risk. 

FLU-ACE™

Direct Contact Condensing Heat Recovery

Using direct contact flue gas heat recovery, the FLU-ACE captures up to 90% of energy normally lost through boiler exhausts and converts it into usable hot water. This reduces fuel use emissions and peak boiler demand, delivering immediate efficiency gains while supporting hospitals as they may reduce reliance on steam and progress toward lower temperature heat systems over time, without disrupting heat supply or clinical operations.

FLU-ACE installed

GEM™

Full Venturi Steam Traps

With no moving parts, they eliminate common mechanical failure points and reduce maintenance demands in live hospital environments. Engineered never to fail open, they help limit steam losses, fuel use and emissions where steam remains in service, supporting reliable operation and long-term efficiency while hospitals optimise existing systems.

When combined with remote monitoring and tailored service contracts, manual inspections in confined or high-risk areas are reduced while real-time performance data supports proactive maintenance and long-term reliability for critical hospital systems.

Flanged Opal GEM Steam Traps

PERCO-ACE™

Direct Contact Water Heating

High-efficiency hot water where hospitals require resilient high temperature supply but cannot fully remove steam. By delivering up to 99% efficient direct-fired hot water, it reduces boiler loading fuel use and emissions during the transition to lower temperature and hybrid heat systems without compromising operational reliability or infection control requirements.

PERCO-ACE installed on site

Hybrid FLU-ACE™

Direct Fired Water Heater + Direct Contact Economiser

Combines flue gas heat recovery with high efficiency direct fired water heating in a single system. Waste energy is captured first, and only the remaining load is met by the burner, maximising efficiency while reducing fuel demand and emissions. This approach supports hospitals that need reliable high temperature hot water while progressing toward lower temperature and hybrid heat systems without compromising operational resilience. 

Hybrid FLU-ACE installed on site
CASE STUDIES

Demonstrated Performance in Hospital Environments

For more than 30 years, Thermal Energy International has delivered thermal efficiency and heat recovery projects across hospital estates worldwide, generating sustained cost savings while reducing energy use and emissions. Engineered for active hospital environments, these improvements reduce baseline demand, strengthen thermal infrastructure, and support resilience today while leaving hospitals better positioned to adapt to future heat strategies over time.

Sustainability that pays for itself 

Proven solutions that deliver verified returns from day one. 

Speak to our team

If you are assessing how to reduce energy use and emissions across hospital heating and hot water systems, our engineers can help you understand what is practical, achievable, and appropriate for your site. 

  • Identify where energy is being lost across existing plant 
  • Understand efficiency improvements that reduce cost without operational risk 
  • Gain clear guidance on performance, resilience, and future compatibility 
Get in touch