A rotary heat exchanger is a high efficiency energy recovery solution that transfers heat and moisture between air streams using a rotating matrix.
Available in condensation, enthalpy and sorption matrices, it provides optimum heat and humidity control. Suitable for residential, commercial and industrial applications, it improves energy efficiency and indoor air quality.

ZERN ENGINEERING designs and manufactures a wide range of rotary heat exchangers to meet the demands of modern ventilation systems. With diameters up to 2500 mm and different types of heat storage matrices, our regenerators ensure exceptional performance, energy efficiency and adaptability.

Key features - advanced heat storage matrices:

• Condensation matrices (R-EX Series): Optimised for applications requiring effective sensible heat recovery.
• Enthalpy Matrices (R-E-EX Series): Recovers both heat and moisture, improving energy savings and indoor air quality.
• Sorption Matrices (R-N-EX Series): Ideal for high humidity environments, providing superior moisture recovery and dehumidification.

Extensive customisation options:

• Multiple drive types: Offers multiple drive configurations to meet a variety of system requirements.
• Customised Enclosures: Customised enclosures for seamless integration into unique installations.
• Wide range of matrix wave heights: Allows fine-tuning of heat transfer efficiency.
• Horizontal Placement: Designed for systems with space limitations or specific layout requirements.
• etc.

A counter-flow plate heat exchanger is an advanced energy recovery solution designed to maximise heat transfer efficiency between two airflows moving in opposite directions.
Its design maximises energy savings and is available in sensible and enthalpy versions for heat or combined heat and moisture recovery. Ideal for residential, commercial and industrial ventilation, it improves indoor air quality while reducing energy costs.

Sensible counter-flow heat exchangers

The HU/HS/HC/HD series of sensible plate heat exchangers offer flexible technical characteristics to meet the needs of different systems, from residential applications (apartments, houses) to industrial environments (commercial buildings, workshops, warehouses, etc.).

These high performance heat exchangers ensure efficient heat recovery, helping to reduce energy consumption and operating costs. Their robust construction and adaptability make them suitable for a wide range of ventilation systems, regardless of size or complexity.

Key benefits include:

• Flexible applications: Designed for both residential and industrial applications.
• High efficiency: Optimised for maximum sensible heat recovery.
• Durability: Built to withstand harsh operating conditions.
• Compact design: Easy to integrate into new or existing systems.

From small domestic installations to large industrial systems, our HU/HC/HS/HD heat exchangers deliver reliable, energy-efficient performance.

Enthalpy counter-flow heat exchangers

The ECD/EC-EX6 Series enthalpy plate heat exchangers are specifically designed to recover both heat and moisture, making them ideal for residential applications such as apartments and houses. These exchangers provide energy efficient climate control, ensuring comfort while reducing energy consumption.

By recovering both temperature and humidity, the ECD/EC-EX6 Series ensures balanced indoor air quality and reduces the load on HVAC systems, delivering exceptional performance tailored to residential needs.

Key benefits include:

• Moisture recovery: Effectively recovers latent heat for improved energy efficiency and humidity balance.
• Residential focus: Tailored for apartments, houses and other residential systems.\
• Energy savings: Minimises heating, cooling and humidification requirements.
• Compact design: Optimised for easy integration into compact residential units.
• Reliable performance: Designed for consistent operation and long-term durability.

The ECD/EC-EX6 series combines efficiency and comfort, making it the perfect solution for residential ventilation systems where energy recovery and indoor air quality are priorities.

A cross-flow plate heat exchanger transfers heat between perpendicular airflows, providing a compact and reliable energy recovery solution.
Available in sensible and enthalpy versions, it provides effective heat or combined heat and moisture recovery. Ideal for residential and commercial ventilation, it ensures energy efficiency and improved indoor air quality.

Sensible cross-flow heat exchangers

The Hp-EX4 Series cross-flow sensible plate heat exchangers in our portfolio provide a proven and reliable solution for ventilation systems where simple heat recovery is essential. Although the technology is well established, it continues to offer significant advantages for specific applications, particularly in systems where a balance between performance, simplicity and cost efficiency is required.

Ideal for residential and light commercial applications, these exchangers are a reliable choice for projects where reliable operation and ease of maintenance are paramount.

Key benefits include:

• Cost effective solution: Provides an economical option for ventilation systems without compromising on basic performance.
• Simplicity and reliability: A proven design that ensures reliable operation with minimal complexity.
• Low maintenance: Easy to clean and maintain, making it ideal for applications where serviceability is essential.
• Compact design: Provides easy integration into small and medium sized air handling units.
• Energy savings: Provides effective sensible heat recovery, reducing heating and cooling loads in ventilation systems.

Enthalpy cross-flow heat exchangers

The E-EX4 Series of enthalpy cross-flow plate heat exchangers are designed to recover both heat and moisture, providing energy efficient solutions for a wide range of applications. Suitable for both domestic and industrial systems, the E-EX4 Series offers versatility and reliability in compact, cost-effective designs.

By offering combi versions, the E-EX4 series can meet the unique requirements of different environments - from apartments and houses to commercial buildings, workshops and warehouses.

Key benefits include:

• Dual energy recovery: Efficiently recovers both sensible and latent heat, reducing the energy load on heating, cooling and humidification systems.
• Versatile applications: Available in versions tailored for residential use or more demanding industrial environments.
• Compact design: Lightweight and easy to integrate into both small residential units and larger industrial systems.
• Customisable configurations: Combination options allow flexible adaptation to different ventilation and recovery needs.
• Low maintenance: Simple, robust design ensures easy cleaning and maintenance, even in demanding environments.
• Cost-effective energy efficiency: Balances affordability with performance to deliver optimum results in all applications.