10+ Years of Proven Performance

Major Urban Hospital

For more than a decade, this integrated FLU-ACE heat recovery system has delivered up to 98% heating efficiency under continuous, high-demand operation, reducing fuel costs, improving system efficiency, enhancing air quality, and supporting regulatory compliance and sustainability targets. 

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Industry

Hospitals

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Location

Canada

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Solution

FLU-ACE™

H02 Major Urban Hospital

6,797  
tonnes

Annual CO₂e emissions reduced

11  
MMBtu/h

Free hot water delivery

>
50
%

Reduction in particulate matter emissions

The project was successfully completed within one year, delivering a low-maintenance, high-efficiency solution that continues to operate reliably more than a decade later. 

High-Efficiency, Low-Cost Heating for a Large-Scale Hospital Plant

A major hospital in Canada has embraced sustainability within its boiler plant, featuring Thermal Energy International's FLU-ACE. Designed to provide high-efficiency space heating for the newly constructed super hospital at the time, this integrated solution has delivered over a decade of operational savings and carbon reduction.

When planners for the $2 billion hospital project met with consulting engineers, one of their top priorities was to maximize heating efficiency while ensuring the lowest possible energy costs. The facility was set to house the largest power plant among the province’s major hospitals, requiring an advanced energy solution that aligned with its commitment to sustainability and efficiency.

Thermal Energy’s expertise led to a streamlined and effective design. Unlike competing proposals requiring 12 separate stacks, Thermal Energy’s single-stack solution delivered superior efficiency, cost savings, and a visually cohesive system. It also reinforces the customer’s commitment to achieving Net-Zero emissions by 2050.

Integrated Heat Recovery for Large-Scale Hospital Boiler Plants

To maximize energy efficiency and reduce operating costs, the hospital integrated the FLU-ACE heat recovery system into its hot water distribution network. Designed to recover waste heat from six steam and six hot water boilers, the system replaced the need for multiple separate units with a compact, single-stack solution, significantly reducing operational costs. This resulted in delivering condensing boiler efficiencies at lower cost and with longer life than condensing boilers can provide.

The FLU-ACE works by capturing residual heat from boiler and turbine flue gases and transferring it to cooler water streams, efficiently producing hot water at temperatures up to 140°F. This process achieves an impressive 98% heating efficiency when fully loaded, aligning with the hospital’s goal of minimizing energy waste while ensuring reliable year-round heating.

Beyond energy savings, the system also enhances indoor air quality by reducing particulate matter (PM) emissions (a key factor in respiratory health) by more than 50%. By significantly lowering emissions in this sensitive hospital environment, the system results in cleaner outdoor air for patients, staff, and visitors.

Explore More Hospital Case Studies

Speak to our team

If you are exploring how to cut energy use, reduce emissions, or assess the viability of steam, heat recovery or hot water solutions for your site, our team can help you understand what is possible.

  • Identify where energy is being lost
  • Understand the most effective efficiency improvements for your site
  • Gain clear guidance on performance expectations and practical implementation
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