IGK - Heat Recovery Unit (HRV-HRU)
The IGK series is a high-efficiency ceiling-mounted heat recovery unit that simultaneously provides fresh air supply and stale air exhaust while recovering 50–60% of the energy contained in the outgoing airstream. Manufactured from high-quality, corrosion-resistant galvanized steel with 6mm rubber sound and heat insulation, the IGK features an aluminum plate recuperator, G4 filters in both air directions, and high-efficiency plug fans — delivering significant energy savings alongside superior indoor air quality in offices, schools, hospitals, cafes, and residential spaces.
- We guarantee EU-standard quality.
- Count on rapid, reliable global delivery.
- Backed by 24 years of expertise.
Areas of Use
The IGK series is the ideal heat recovery solution for any conditioned space where both fresh air supply and exhaust ventilation are required simultaneously, and where energy efficiency and indoor air quality are equally important design priorities. Its ceiling-mounted design and compact footprint make it suitable for virtually all commercial and residential building types. Use these high-efficiency heat recovery units confidently in:
- Offices, corporate spaces, and commercial buildings
- Schools, educational institutions, and training centers
- Hospitals, clinics, and healthcare facilities
- Cafes, restaurants, and hospitality venues
- Residential apartments, homes, and comfort ventilation systems
Key Features & Specifications
High-Efficiency Aluminum Plate Recuperator: At the core of the IGK is a high-thermal-efficiency aluminum plate heat exchanger that transfers 50–60% of the heat energy from the outgoing exhaust air directly to the incoming fresh air — dramatically reducing heating and cooling energy costs year-round without mixing the two airstreams.
Ceiling-Mounted Compact Design: The IGK is specifically designed for ceiling installation, making it completely unobtrusive in the occupied space while maintaining easy access to all components through dedicated intervention covers on the casing — ensuring straightforward maintenance without disrupting the room below.
G4 Filters in Both Air Directions: High-quality G4 panel filters are installed in both the fresh air inlet and the exhaust air inlet, protecting the aluminum plate heat exchanger from dust and contaminants — keeping it operating at peak efficiency and extending service intervals significantly.
High-Efficiency Plug Fans: Both the supply and exhaust fans are backward-curved plug-type radial fans, providing high aerodynamic efficiency, low energy consumption, and exceptionally quiet operation — making the IGK series suitable for the most noise-sensitive environments.
Speed Control as Standard: A speed controller is supplied as standard with every IGK unit, allowing precise adjustment of the airflow rate to match the exact ventilation requirements of the space — providing both comfort control and additional energy savings during periods of reduced occupancy.
Sound & Heat Insulated Casing: The galvanized steel casing is insulated with 6mm rubber material, providing effective dual-purpose sound and heat insulation — ensuring both quiet operation and minimal heat transfer through the unit casing to the ceiling space above.
Optional Integration of Heating & Cooling Coils: Electric heater, DX cooling coil, and water coil options can be seamlessly integrated into the IGK, transforming it from a pure heat recovery ventilation unit into a fully capable air treatment system with heating and cooling capability in a single ceiling-mounted package.
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