Counterflow heat exchangers

Wide range of variants, superior performance

Discover our wide-ranging portfolio of counterflow heat exchangers for ventilation systems with different requirements.

C-HRV heat exchangers

With the highest transfer efficiencies, our C-HRV counterflow heat exchangers are the ideal solution for every ventilation system with heat recovery. The products, which are based on the counterflow principle, offer a comprehensive range of different variants and specifications.


  • A wide range of designs in numerous variants
  • Washable and hygiene certified
  • Long product life with excellent transfer values

Download C-HRV 195

Download C-HRV 200

Download C-HRV 313

Download RS220

Download C-HRV 366

Download C-HRV 366 UL

Download RC160

Download RS160

Download RU160

Download C-HRV 450

Download RS300

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C-ERV enthalpy exchangers

Our C-ERV counterflow enthalpy exchangers feature unique CORE polymer membrane technology. It allows both humidity and heat to be transferred to a fresh supply air. Pathogens, odors and pollutants are released directly outside as the air is exchanged.


  • A wide range of designs in numerous variants
  • Highly sensitive and latent transfer capacity
  • Zero condensation trap within design parameters, lower freezing limits, and higher overall efficiency

Download C-ERV 366

Download C-ERV 366 UL

Download C-ERV 389

Download C-ERV 446

Download C-ERV 488

Download RCH160

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F-ERV enthalpy exchangers for large ventilation systems

The performance and size of our F-ERVs make them perfect for use in large centralized units. At the same time, they are more lightweight and easier to handle than conventional solutions.


  • Innovative shapes 
  • Weight-reduced design
  • Easy to handle
  • Optimized performance

Download F-ERV 529

Download F-ERV 750

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The right solution for modern ventilation systems

Ventilation systems need to meet ever-growing requirements: New building regulations create airtight buildings. This requires the regular, active exchange of stale air – to ensure a pleasant indoor environment without mold growth and to ensure structural integrity. With CORE, you can count on uniquely powerful counterflow heat exchangers and be assured of ventilation systems that meet the requirements of both today and tomorrow.

Patented technology

Today, heat exchangers are at the heart of every modern ventilation system. Whether in a commercial or residential setting, air exchange with energy recovery is integral in today’s environmentally friendly building operations. The right heat exchanger technology is crucial for the energy-efficient exchange of air. Our wide-ranging portfolio of counterflow heat exchangers is based on a unique, patented channel structure. This ensures optimal separation as the incoming and outgoing air flow thermodynamically past each other.

High efficiency

All of our counterflow heat exchangers deliver especially high transfer efficiency. The innovative flow principle guides the air flows past each other through a large number of small square channels. This allows heat to be exchanged on all four sides, resulting in much higher efficiency than with conventional plate heat exchangers. For your customers, this means improved comfort and significant cost savings.

Your advantages at a glance

Patented counterflow principle

Thanks to the patented, unique counterflow principle, our heat exchangers are among the most efficient in the world.

CORE polymer membrane technology

Provides lasting protection from even the smallest organisms and viruses and prevents mold formation.

High transfer capacity

The high transfer capacity gives you high efficiency rates for energy-efficient, future-proof ventilation systems.

Custom-fit air volume

Large and small solutions for a variety of applications in residential or commercial buildings.

Wide-ranging portfolio

Standard portfolio for a wide range of different technical requirements.

Do you have highly particular specifications?

We would be happy to design counterflow heat exchangers that meet your specific requirements. In addition to a broad portfolio of standard solutions for residential and commercial applications, we also offer made-to-order production. Learn more about our customized solutions.

Additional topics

About us

Improving life at its core. Since 1994, our products have provided a better, healthier indoor environment. Learn what makes us a leading manufacturer of heat and enthalpy exchangers.

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Quality

Achieving top quality is what drives us. To that end, we ask the right questions when designing individual solutions and use state-of-the-art production techniques. Learn how we ensure the outstanding CORE quality of our heat exchangers.

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Sustainability

Sustainability plays a crucial role in everything we do. After all, our heat exchangers themselves are an active contribution to climate protection. They improve energy efficiency and reduce emissions by lowering heating or cooling requirements. Learn how you can help improve sustainability with CORE products.

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